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<!DOCTYPE html>
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<title>R User Notebook</title>
<meta name="description" content="A notebook of useful R code and concepts">
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<div class="book-summary">
<nav role="navigation">
<ul class="summary">
<li class="chapter" data-level="1" data-path="index.html"><a href="index.html"><i class="fa fa-check"></i><b>1</b> R User Notebook</a></li>
<li class="chapter" data-level="2" data-path="basic-concepts.html"><a href="basic-concepts.html"><i class="fa fa-check"></i><b>2</b> Basic Concepts</a><ul>
<li class="chapter" data-level="2.1" data-path="basic-concepts.html"><a href="basic-concepts.html#vectors"><i class="fa fa-check"></i><b>2.1</b> Vectors</a></li>
<li class="chapter" data-level="2.2" data-path="basic-concepts.html"><a href="basic-concepts.html#matrices"><i class="fa fa-check"></i><b>2.2</b> Matrices</a></li>
<li class="chapter" data-level="2.3" data-path="basic-concepts.html"><a href="basic-concepts.html#dataframes"><i class="fa fa-check"></i><b>2.3</b> Dataframes</a></li>
<li class="chapter" data-level="2.4" data-path="basic-concepts.html"><a href="basic-concepts.html#tibbles"><i class="fa fa-check"></i><b>2.4</b> Tibbles</a></li>
<li class="chapter" data-level="2.5" data-path="basic-concepts.html"><a href="basic-concepts.html#extracting-data-from-dataframestibbles"><i class="fa fa-check"></i><b>2.5</b> Extracting data from Dataframes/Tibbles</a></li>
<li class="chapter" data-level="2.6" data-path="basic-concepts.html"><a href="basic-concepts.html#lists"><i class="fa fa-check"></i><b>2.6</b> Lists</a></li>
<li class="chapter" data-level="2.7" data-path="basic-concepts.html"><a href="basic-concepts.html#factors"><i class="fa fa-check"></i><b>2.7</b> Factors</a></li>
<li class="chapter" data-level="2.8" data-path="basic-concepts.html"><a href="basic-concepts.html#dates"><i class="fa fa-check"></i><b>2.8</b> Dates</a></li>
<li class="chapter" data-level="2.9" data-path="basic-concepts.html"><a href="basic-concepts.html#style-guide"><i class="fa fa-check"></i><b>2.9</b> Style Guide</a></li>
</ul></li>
<li class="chapter" data-level="3" data-path="importing-exporting.html"><a href="importing-exporting.html"><i class="fa fa-check"></i><b>3</b> Importing & Exporting</a><ul>
<li class="chapter" data-level="3.1" data-path="importing-exporting.html"><a href="importing-exporting.html#importing-with-base-r"><i class="fa fa-check"></i><b>3.1</b> Importing with Base R</a></li>
<li class="chapter" data-level="3.2" data-path="importing-exporting.html"><a href="importing-exporting.html#importing-with-other-packages"><i class="fa fa-check"></i><b>3.2</b> Importing with other packages</a><ul>
<li class="chapter" data-level="3.2.1" data-path="importing-exporting.html"><a href="importing-exporting.html#importing-a-csv"><i class="fa fa-check"></i><b>3.2.1</b> Importing a CSV</a></li>
<li class="chapter" data-level="3.2.2" data-path="importing-exporting.html"><a href="importing-exporting.html#importing-a-tsv"><i class="fa fa-check"></i><b>3.2.2</b> Importing a TSV</a></li>
<li class="chapter" data-level="3.2.3" data-path="importing-exporting.html"><a href="importing-exporting.html#importing-a-r-data-file"><i class="fa fa-check"></i><b>3.2.3</b> Importing a R data file</a></li>
<li class="chapter" data-level="3.2.4" data-path="importing-exporting.html"><a href="importing-exporting.html#importing-a-excel-file"><i class="fa fa-check"></i><b>3.2.4</b> Importing a Excel file</a></li>
<li class="chapter" data-level="3.2.5" data-path="importing-exporting.html"><a href="importing-exporting.html#importing-a-sas-file"><i class="fa fa-check"></i><b>3.2.5</b> Importing a SAS file</a></li>
<li class="chapter" data-level="3.2.6" data-path="importing-exporting.html"><a href="importing-exporting.html#importing-json-newline-delimited-json"><i class="fa fa-check"></i><b>3.2.6</b> Importing JSON (Newline Delimited JSON)</a></li>
</ul></li>
<li class="chapter" data-level="3.3" data-path="importing-exporting.html"><a href="importing-exporting.html#exporting"><i class="fa fa-check"></i><b>3.3</b> Exporting</a><ul>
<li class="chapter" data-level="3.3.1" data-path="importing-exporting.html"><a href="importing-exporting.html#write-to-an-r-dataset"><i class="fa fa-check"></i><b>3.3.1</b> Write to an R dataset</a></li>
<li class="chapter" data-level="3.3.2" data-path="importing-exporting.html"><a href="importing-exporting.html#write-to-an-csv-file"><i class="fa fa-check"></i><b>3.3.2</b> Write to an CSV file</a></li>
</ul></li>
</ul></li>
<li class="chapter" data-level="4" data-path="manipulating-data.html"><a href="manipulating-data.html"><i class="fa fa-check"></i><b>4</b> Manipulating data</a><ul>
<li class="chapter" data-level="4.1" data-path="manipulating-data.html"><a href="manipulating-data.html#basic-data-wrangling"><i class="fa fa-check"></i><b>4.1</b> Basic data wrangling</a></li>
<li class="chapter" data-level="4.2" data-path="manipulating-data.html"><a href="manipulating-data.html#summary-statistics"><i class="fa fa-check"></i><b>4.2</b> Summary statistics</a></li>
<li class="chapter" data-level="4.3" data-path="manipulating-data.html"><a href="manipulating-data.html#conditional-statements"><i class="fa fa-check"></i><b>4.3</b> Conditional statements</a></li>
<li class="chapter" data-level="4.4" data-path="manipulating-data.html"><a href="manipulating-data.html#recode"><i class="fa fa-check"></i><b>4.4</b> Recode</a></li>
<li class="chapter" data-level="4.5" data-path="manipulating-data.html"><a href="manipulating-data.html#appending-columns-and-rows"><i class="fa fa-check"></i><b>4.5</b> Appending columns and rows</a></li>
<li class="chapter" data-level="4.6" data-path="manipulating-data.html"><a href="manipulating-data.html#joins"><i class="fa fa-check"></i><b>4.6</b> Joins</a></li>
<li class="chapter" data-level="4.7" data-path="manipulating-data.html"><a href="manipulating-data.html#tidy-data"><i class="fa fa-check"></i><b>4.7</b> Tidy Data</a></li>
<li class="chapter" data-level="4.8" data-path="manipulating-data.html"><a href="manipulating-data.html#tibbles-1"><i class="fa fa-check"></i><b>4.8</b> tibbles</a></li>
</ul></li>
<li class="chapter" data-level="5" data-path="functions.html"><a href="functions.html"><i class="fa fa-check"></i><b>5</b> Functions</a><ul>
<li class="chapter" data-level="5.1" data-path="functions.html"><a href="functions.html#function-basics---an-example-using-str"><i class="fa fa-check"></i><b>5.1</b> Function Basics - an example using str()</a></li>
<li class="chapter" data-level="5.2" data-path="functions.html"><a href="functions.html#common-base-functions"><i class="fa fa-check"></i><b>5.2</b> Common (base) functions</a><ul>
<li class="chapter" data-level="5.2.1" data-path="functions.html"><a href="functions.html#strings"><i class="fa fa-check"></i><b>5.2.1</b> Strings</a></li>
<li class="chapter" data-level="5.2.2" data-path="functions.html"><a href="functions.html#mathematical"><i class="fa fa-check"></i><b>5.2.2</b> Mathematical</a></li>
<li class="chapter" data-level="5.2.3" data-path="functions.html"><a href="functions.html#properties-lookups"><i class="fa fa-check"></i><b>5.2.3</b> Properties & Lookups</a></li>
<li class="chapter" data-level="5.2.4" data-path="functions.html"><a href="functions.html#transformation"><i class="fa fa-check"></i><b>5.2.4</b> Transformation</a></li>
<li class="chapter" data-level="5.2.5" data-path="functions.html"><a href="functions.html#other-useful-functions"><i class="fa fa-check"></i><b>5.2.5</b> Other useful functions</a></li>
</ul></li>
<li class="chapter" data-level="5.3" data-path="functions.html"><a href="functions.html#stringr---more-string-functions"><i class="fa fa-check"></i><b>5.3</b> Stringr - more string functions</a></li>
<li class="chapter" data-level="5.4" data-path="functions.html"><a href="functions.html#lubridate---more-date-functions"><i class="fa fa-check"></i><b>5.4</b> Lubridate - more date functions</a></li>
<li class="chapter" data-level="5.5" data-path="functions.html"><a href="functions.html#converting-data-to-other-formats"><i class="fa fa-check"></i><b>5.5</b> Converting data to other formats</a><ul>
<li class="chapter" data-level="5.5.1" data-path="functions.html"><a href="functions.html#json"><i class="fa fa-check"></i><b>5.5.1</b> JSON</a></li>
</ul></li>
<li class="chapter" data-level="5.6" data-path="functions.html"><a href="functions.html#user-defined-functions"><i class="fa fa-check"></i><b>5.6</b> User Defined Functions</a></li>
<li class="chapter" data-level="5.7" data-path="functions.html"><a href="functions.html#chainingpiping"><i class="fa fa-check"></i><b>5.7</b> Chaining/Piping</a></li>
</ul></li>
<li class="chapter" data-level="6" data-path="loops.html"><a href="loops.html"><i class="fa fa-check"></i><b>6</b> Loops</a><ul>
<li class="chapter" data-level="6.1" data-path="loops.html"><a href="loops.html#basic-for-loop-structure"><i class="fa fa-check"></i><b>6.1</b> Basic for Loop structure</a></li>
<li class="chapter" data-level="6.2" data-path="loops.html"><a href="loops.html#looping-through-a-vector"><i class="fa fa-check"></i><b>6.2</b> Looping through a vector</a></li>
<li class="chapter" data-level="6.3" data-path="loops.html"><a href="loops.html#creating-a-list-in-a-loop"><i class="fa fa-check"></i><b>6.3</b> Creating a List in a Loop</a></li>
<li class="chapter" data-level="6.4" data-path="loops.html"><a href="loops.html#looping-with-apply-functions"><i class="fa fa-check"></i><b>6.4</b> Looping with apply functions</a></li>
</ul></li>
<li class="chapter" data-level="7" data-path="tables.html"><a href="tables.html"><i class="fa fa-check"></i><b>7</b> Tables</a><ul>
<li class="chapter" data-level="7.1" data-path="tables.html"><a href="tables.html#displaying-tables---htmltable"><i class="fa fa-check"></i><b>7.1</b> Displaying tables - htmlTable</a></li>
<li class="chapter" data-level="7.2" data-path="tables.html"><a href="tables.html#displaying-interactive-tables---dt"><i class="fa fa-check"></i><b>7.2</b> Displaying Interactive tables - DT</a></li>
<li class="chapter" data-level="7.3" data-path="tables.html"><a href="tables.html#creating-tabulations"><i class="fa fa-check"></i><b>7.3</b> Creating Tabulations</a></li>
</ul></li>
<li class="chapter" data-level="8" data-path="charts.html"><a href="charts.html"><i class="fa fa-check"></i><b>8</b> Charts</a><ul>
<li class="chapter" data-level="8.0.1" data-path="charts.html"><a href="charts.html#static-charts-with-ggplot2"><i class="fa fa-check"></i><b>8.0.1</b> Static charts with ggplot2</a></li>
<li class="chapter" data-level="8.0.2" data-path="charts.html"><a href="charts.html#changing-axes"><i class="fa fa-check"></i><b>8.0.2</b> Changing Axes</a></li>
<li class="chapter" data-level="8.0.3" data-path="charts.html"><a href="charts.html#chart-themes-styles"><i class="fa fa-check"></i><b>8.0.3</b> Chart Themes & Styles</a></li>
<li class="chapter" data-level="8.0.4" data-path="charts.html"><a href="charts.html#line-charts-geom_line"><i class="fa fa-check"></i><b>8.0.4</b> Line Charts (geom_line)</a></li>
<li class="chapter" data-level="8.0.5" data-path="charts.html"><a href="charts.html#bar-charts-geom_bar-geom_histogram"><i class="fa fa-check"></i><b>8.0.5</b> Bar Charts (geom_bar & geom_histogram)</a></li>
<li class="chapter" data-level="8.0.6" data-path="charts.html"><a href="charts.html#adding-features"><i class="fa fa-check"></i><b>8.0.6</b> Adding features</a></li>
<li class="chapter" data-level="8.0.7" data-path="charts.html"><a href="charts.html#heatmaps"><i class="fa fa-check"></i><b>8.0.7</b> Heatmaps</a></li>
<li class="chapter" data-level="8.0.8" data-path="charts.html"><a href="charts.html#boxplots"><i class="fa fa-check"></i><b>8.0.8</b> Boxplots</a></li>
<li class="chapter" data-level="8.0.9" data-path="charts.html"><a href="charts.html#combination-charts"><i class="fa fa-check"></i><b>8.0.9</b> Combination Charts</a></li>
<li class="chapter" data-level="8.0.10" data-path="charts.html"><a href="charts.html#scales"><i class="fa fa-check"></i><b>8.0.10</b> Scales</a></li>
<li class="chapter" data-level="8.0.11" data-path="charts.html"><a href="charts.html#ggplot-wizard"><i class="fa fa-check"></i><b>8.0.11</b> ggplot wizard</a></li>
<li class="chapter" data-level="8.0.12" data-path="charts.html"><a href="charts.html#interactive-charts-with-ggiraph"><i class="fa fa-check"></i><b>8.0.12</b> Interactive charts with ggiraph</a></li>
<li class="chapter" data-level="8.0.13" data-path="charts.html"><a href="charts.html#interactive-charts-with-dygraph"><i class="fa fa-check"></i><b>8.0.13</b> Interactive charts with dygraph</a></li>
</ul></li>
<li class="chapter" data-level="9" data-path="maps.html"><a href="maps.html"><i class="fa fa-check"></i><b>9</b> Maps</a><ul>
<li class="chapter" data-level="9.1" data-path="maps.html"><a href="maps.html#leaflet"><i class="fa fa-check"></i><b>9.1</b> Leaflet</a><ul>
<li class="chapter" data-level="9.1.1" data-path="maps.html"><a href="maps.html#display-a-basic-map"><i class="fa fa-check"></i><b>9.1.1</b> Display a basic map</a></li>
<li class="chapter" data-level="9.1.2" data-path="maps.html"><a href="maps.html#add-markers-shapes-and-popups-to-a-map"><i class="fa fa-check"></i><b>9.1.2</b> Add markers, shapes and popups to a map</a></li>
<li class="chapter" data-level="9.1.3" data-path="maps.html"><a href="maps.html#add-boundaries"><i class="fa fa-check"></i><b>9.1.3</b> Add Boundaries</a></li>
<li class="chapter" data-level="9.1.4" data-path="maps.html"><a href="maps.html#add-interactivity"><i class="fa fa-check"></i><b>9.1.4</b> Add Interactivity</a></li>
<li class="chapter" data-level="9.1.5" data-path="maps.html"><a href="maps.html#attach-extra-information-to-your-boundary-dataset"><i class="fa fa-check"></i><b>9.1.5</b> Attach extra information to your boundary dataset</a></li>
<li class="chapter" data-level="9.1.6" data-path="maps.html"><a href="maps.html#add-colour-based-on-area-data"><i class="fa fa-check"></i><b>9.1.6</b> Add colour based on area data</a></li>
</ul></li>
<li class="chapter" data-level="9.2" data-path="maps.html"><a href="maps.html#inserting-html-javascript-directly-into-r"><i class="fa fa-check"></i><b>9.2</b> Inserting HTML & Javascript directly into R</a></li>
</ul></li>
<li class="chapter" data-level="10" data-path="rmarkdown-knitr.html"><a href="rmarkdown-knitr.html"><i class="fa fa-check"></i><b>10</b> RMarkdown & Knitr</a><ul>
<li class="chapter" data-level="10.1" data-path="rmarkdown-knitr.html"><a href="rmarkdown-knitr.html#knitr"><i class="fa fa-check"></i><b>10.1</b> Knitr</a></li>
<li class="chapter" data-level="10.2" data-path="rmarkdown-knitr.html"><a href="rmarkdown-knitr.html#yaml"><i class="fa fa-check"></i><b>10.2</b> YAML</a></li>
<li class="chapter" data-level="10.3" data-path="rmarkdown-knitr.html"><a href="rmarkdown-knitr.html#modular-coding"><i class="fa fa-check"></i><b>10.3</b> Modular coding</a></li>
</ul></li>
<li class="chapter" data-level="11" data-path="machine-learning-predictive-analytics.html"><a href="machine-learning-predictive-analytics.html"><i class="fa fa-check"></i><b>11</b> Machine Learning & Predictive Analytics</a><ul>
<li class="chapter" data-level="11.0.1" data-path="machine-learning-predictive-analytics.html"><a href="machine-learning-predictive-analytics.html#decision-trees"><i class="fa fa-check"></i><b>11.0.1</b> Decision Trees</a></li>
</ul></li>
<li class="chapter" data-level="12" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html"><i class="fa fa-check"></i><b>12</b> Text Mining & NLP</a><ul>
<li class="chapter" data-level="12.0.1" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#text-data"><i class="fa fa-check"></i><b>12.0.1</b> Text data</a></li>
<li class="chapter" data-level="12.0.2" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#tidy-text"><i class="fa fa-check"></i><b>12.0.2</b> Tidy text</a></li>
<li class="chapter" data-level="12.0.3" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#stemming"><i class="fa fa-check"></i><b>12.0.3</b> Stemming</a></li>
<li class="chapter" data-level="12.0.4" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#basic-text-stats"><i class="fa fa-check"></i><b>12.0.4</b> Basic text stats</a></li>
<li class="chapter" data-level="12.0.5" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#n-grams-analysis"><i class="fa fa-check"></i><b>12.0.5</b> N-Grams analysis</a></li>
<li class="chapter" data-level="12.0.6" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#text-preparation-with-tm"><i class="fa fa-check"></i><b>12.0.6</b> Text Preparation with <strong>tm</strong></a></li>
<li class="chapter" data-level="12.1" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#create-a-term-document-matrix"><i class="fa fa-check"></i><b>12.1</b> Create a Term Document Matrix</a><ul>
<li class="chapter" data-level="12.1.1" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#from-a-corpus-by-default-words-are-converted-to-lowercase-less-than-3-characters-are-excluded"><i class="fa fa-check"></i><b>12.1.1</b> From a Corpus (by default words are converted to lowercase less than 3 characters are excluded)</a></li>
<li class="chapter" data-level="12.1.2" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#matrix-managment"><i class="fa fa-check"></i><b>12.1.2</b> Matrix Managment</a></li>
</ul></li>
<li class="chapter" data-level="12.2" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#topic-modelling-latent-dirichlet-allocation-lda"><i class="fa fa-check"></i><b>12.2</b> Topic Modelling & Latent Dirichlet Allocation (LDA)</a></li>
<li class="chapter" data-level="12.3" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#clustering---similarity-between-topics"><i class="fa fa-check"></i><b>12.3</b> Clustering - Similarity between topics</a></li>
<li class="chapter" data-level="12.4" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#calculating-distance-between-objects"><i class="fa fa-check"></i><b>12.4</b> Calculating distance between objects</a></li>
<li class="chapter" data-level="12.5" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#non-euclidian-distances---jensen-shannon"><i class="fa fa-check"></i><b>12.5</b> Non-Euclidian Distances - Jensen Shannon</a></li>
<li class="chapter" data-level="12.6" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#scaling---principal-components"><i class="fa fa-check"></i><b>12.6</b> Scaling - Principal Components</a></li>
<li class="chapter" data-level="12.7" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#eigen-vectors"><i class="fa fa-check"></i><b>12.7</b> Eigen vectors</a></li>
<li class="chapter" data-level="12.8" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#k-means"><i class="fa fa-check"></i><b>12.8</b> K-Means</a></li>
<li class="chapter" data-level="12.9" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#naive-bayes-classifiers"><i class="fa fa-check"></i><b>12.9</b> Naive Bayes Classifiers</a></li>
<li class="chapter" data-level="12.10" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#tf-idf-classifiers-supervised"><i class="fa fa-check"></i><b>12.10</b> TF-IDF Classifiers (Supervised)</a></li>
<li class="chapter" data-level="12.11" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#sentiment-analysis"><i class="fa fa-check"></i><b>12.11</b> Sentiment Analysis</a></li>
<li class="chapter" data-level="12.12" data-path="text-mining-nlp.html"><a href="text-mining-nlp.html#word-bubble"><i class="fa fa-check"></i><b>12.12</b> Word Bubble</a></li>
</ul></li>
<li class="chapter" data-level="13" data-path="shiny.html"><a href="shiny.html"><i class="fa fa-check"></i><b>13</b> Shiny</a><ul>
<li class="chapter" data-level="13.1" data-path="shiny.html"><a href="shiny.html#basic-shiny-structure"><i class="fa fa-check"></i><b>13.1</b> Basic Shiny Structure</a></li>
<li class="chapter" data-level="13.2" data-path="shiny.html"><a href="shiny.html#user-interface"><i class="fa fa-check"></i><b>13.2</b> User Interface</a><ul>
<li class="chapter" data-level="13.2.1" data-path="shiny.html"><a href="shiny.html#layout"><i class="fa fa-check"></i><b>13.2.1</b> Layout</a></li>
<li class="chapter" data-level="13.2.2" data-path="shiny.html"><a href="shiny.html#inputs"><i class="fa fa-check"></i><b>13.2.2</b> Inputs</a></li>
<li class="chapter" data-level="13.2.3" data-path="shiny.html"><a href="shiny.html#outputs"><i class="fa fa-check"></i><b>13.2.3</b> Outputs</a></li>
</ul></li>
<li class="chapter" data-level="13.3" data-path="shiny.html"><a href="shiny.html#server"><i class="fa fa-check"></i><b>13.3</b> Server</a><ul>
<li class="chapter" data-level="13.3.1" data-path="shiny.html"><a href="shiny.html#linking-to-ui-outputs"><i class="fa fa-check"></i><b>13.3.1</b> Linking to UI outputs</a></li>
<li class="chapter" data-level="13.3.2" data-path="shiny.html"><a href="shiny.html#linking-to-ui-inputs"><i class="fa fa-check"></i><b>13.3.2</b> Linking to UI inputs</a></li>
</ul></li>
<li class="chapter" data-level="13.4" data-path="shiny.html"><a href="shiny.html#shiny-dashboard"><i class="fa fa-check"></i><b>13.4</b> Shiny Dashboard</a></li>
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<li class="chapter" data-level="14" data-path="bookdown.html"><a href="bookdown.html"><i class="fa fa-check"></i><b>14</b> Bookdown</a><ul>
<li class="chapter" data-level="14.1" data-path="bookdown.html"><a href="bookdown.html#set-up"><i class="fa fa-check"></i><b>14.1</b> Set-up</a></li>
<li class="chapter" data-level="14.2" data-path="bookdown.html"><a href="bookdown.html#create-the-book"><i class="fa fa-check"></i><b>14.2</b> Create the book</a></li>
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<li class="chapter" data-level="15" data-path="creating-packages.html"><a href="creating-packages.html"><i class="fa fa-check"></i><b>15</b> Creating Packages</a><ul>
<li class="chapter" data-level="15.1" data-path="creating-packages.html"><a href="creating-packages.html#setup-folders"><i class="fa fa-check"></i><b>15.1</b> Setup Folders</a></li>
<li class="chapter" data-level="15.2" data-path="creating-packages.html"><a href="creating-packages.html#r-folder"><i class="fa fa-check"></i><b>15.2</b> R folder</a></li>
<li class="chapter" data-level="15.3" data-path="creating-packages.html"><a href="creating-packages.html#man-folder"><i class="fa fa-check"></i><b>15.3</b> man folder</a></li>
<li class="chapter" data-level="15.4" data-path="creating-packages.html"><a href="creating-packages.html#package-details"><i class="fa fa-check"></i><b>15.4</b> Package details</a></li>
<li class="chapter" data-level="15.5" data-path="creating-packages.html"><a href="creating-packages.html#package-dependencies"><i class="fa fa-check"></i><b>15.5</b> Package Dependencies</a></li>
<li class="chapter" data-level="15.6" data-path="creating-packages.html"><a href="creating-packages.html#build-the-package"><i class="fa fa-check"></i><b>15.6</b> Build the package</a></li>
<li class="chapter" data-level="15.7" data-path="creating-packages.html"><a href="creating-packages.html#making-changes"><i class="fa fa-check"></i><b>15.7</b> Making changes</a></li>
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<li class="chapter" data-level="16" data-path="git-version-control.html"><a href="git-version-control.html"><i class="fa fa-check"></i><b>16</b> Git - Version Control</a><ul>
<li class="chapter" data-level="16.1" data-path="git-version-control.html"><a href="git-version-control.html#set-up-1"><i class="fa fa-check"></i><b>16.1</b> Set-up</a></li>
<li class="chapter" data-level="16.2" data-path="git-version-control.html"><a href="git-version-control.html#link-git-to-a-github-account"><i class="fa fa-check"></i><b>16.2</b> Link Git to a GitHub account</a></li>
<li class="chapter" data-level="16.3" data-path="git-version-control.html"><a href="git-version-control.html#starting-a-project-with-github"><i class="fa fa-check"></i><b>16.3</b> Starting a project with Github</a></li>
<li class="chapter" data-level="16.4" data-path="git-version-control.html"><a href="git-version-control.html#hosting-a-site-on-github"><i class="fa fa-check"></i><b>16.4</b> Hosting a site on Github</a></li>
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<li class="chapter" data-level="17" data-path="other-languages.html"><a href="other-languages.html"><i class="fa fa-check"></i><b>17</b> Other Languages</a><ul>
<li class="chapter" data-level="17.1" data-path="other-languages.html"><a href="other-languages.html#sql"><i class="fa fa-check"></i><b>17.1</b> SQL</a></li>
<li class="chapter" data-level="17.2" data-path="other-languages.html"><a href="other-languages.html#python"><i class="fa fa-check"></i><b>17.2</b> Python</a></li>
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<section class="normal" id="section-">
<div id="creating-packages" class="section level1">
<h1><span class="header-section-number">15</span> Creating Packages</h1>
<p>You can create your own packages, which are basically a collection of functions.
You wil need to have installed the <strong>devtools</strong> package.</p>
<div id="setup-folders" class="section level2">
<h2><span class="header-section-number">15.1</span> Setup Folders</h2>
<p>Create an R Package Project file (File > New Project…> New Directory > R Package).
Give a name to your package and the location where all the relevant files will be saved.</p>
<p>Your package folder will contain subfolders ‘R’ and ‘man’ which will contain details of functions.
By default these should contain ‘hello.R’ and ‘hello.Rd’ files.</p>
</div>
<div id="r-folder" class="section level2">
<h2><span class="header-section-number">15.2</span> R folder</h2>
<p>Delete the contents of ‘hello.R’ and replace with your own package function(s). For example:</p>
<div class="sourceCode" id="cb237"><pre class="sourceCode r"><code class="sourceCode r"><a class="sourceLine" id="cb237-1" data-line-number="1">packagefunction <-<span class="st"> </span><span class="cf">function</span>(x,y) {</a>
<a class="sourceLine" id="cb237-2" data-line-number="2"> xyz <-<span class="st"> </span>x<span class="op">*</span>y</a>
<a class="sourceLine" id="cb237-3" data-line-number="3"> <span class="kw">return</span>(xyz) </a>
<a class="sourceLine" id="cb237-4" data-line-number="4">} </a></code></pre></div>
<p>NB. DO NOT use library() or require() in any function files. See the Dependencies section below.
Rename the .R file so that it matches the function name.</p>
</div>
<div id="man-folder" class="section level2">
<h2><span class="header-section-number">15.3</span> man folder</h2>
<p>Delete the contents of ‘hello.Rd’ and replace with documentation of your own functions.<br />
A .Rd file is needed <strong>for each function</strong> that you create. It should have the following format:</p>
<div class="sourceCode" id="cb238"><pre class="sourceCode r"><code class="sourceCode r"><a class="sourceLine" id="cb238-1" data-line-number="1">\name{ packagefunction }</a>
<a class="sourceLine" id="cb238-2" data-line-number="2">\alias{ packagefunction }</a>
<a class="sourceLine" id="cb238-3" data-line-number="3">\title{ A basic <span class="cf">function</span> }</a>
<a class="sourceLine" id="cb238-4" data-line-number="4">\usage{ <span class="kw">packagefunction</span>() }</a>
<a class="sourceLine" id="cb238-5" data-line-number="5">\description{ Multiplies <span class="dv">2</span> numbers. }</a>
<a class="sourceLine" id="cb238-6" data-line-number="6">\examples{ <span class="kw">packagefunction</span>() }</a></code></pre></div>
<p>Rename the .Rd file so that it matches the function name.</p>
</div>
<div id="package-details" class="section level2">
<h2><span class="header-section-number">15.4</span> Package details</h2>
<p>By default a ‘DESCRIPTION’ file should have been created such as the example below. You can update these as neccessary.</p>
<div class="sourceCode" id="cb239"><pre class="sourceCode r"><code class="sourceCode r"><a class="sourceLine" id="cb239-1" data-line-number="1">Package<span class="op">:</span><span class="st"> </span>kdpackage0</a>
<a class="sourceLine" id="cb239-2" data-line-number="2">Type<span class="op">:</span><span class="st"> </span>Package</a>
<a class="sourceLine" id="cb239-3" data-line-number="3">Title<span class="op">:</span><span class="st"> </span>What the Package <span class="kw">Does</span> (Title Case)</a>
<a class="sourceLine" id="cb239-4" data-line-number="4">Version<span class="op">:</span><span class="st"> </span><span class="dv">0</span>.<span class="fl">1.0</span></a>
<a class="sourceLine" id="cb239-5" data-line-number="5">Author<span class="op">:</span><span class="st"> </span>Who wrote it</a>
<a class="sourceLine" id="cb239-6" data-line-number="6">Maintainer<span class="op">:</span><span class="st"> </span>The package maintainer <span class="op"><</span>yourself<span class="op">@</span>somewhere.net<span class="op">></span></a>
<a class="sourceLine" id="cb239-7" data-line-number="7">Description<span class="op">:</span><span class="st"> </span>More about what it <span class="kw">does</span> (maybe more than one line)</a>
<a class="sourceLine" id="cb239-8" data-line-number="8"> Use four spaces when indenting paragraphs within the Description.</a>
<a class="sourceLine" id="cb239-9" data-line-number="9">License<span class="op">:</span><span class="st"> </span>What license is it under?</a>
<a class="sourceLine" id="cb239-10" data-line-number="10">Encoding<span class="op">:</span><span class="st"> </span>UTF<span class="dv">-8</span></a>
<a class="sourceLine" id="cb239-11" data-line-number="11">LazyData<span class="op">:</span><span class="st"> </span>true</a></code></pre></div>
</div>
<div id="package-dependencies" class="section level2">
<h2><span class="header-section-number">15.5</span> Package Dependencies</h2>
<p>If your package uses functions from other packages then you must add these to the ‘DESCRIPTION’ file so that they are imported. For example this package will use functions form dplyr and tm (sepearted by commas):</p>
<div class="sourceCode" id="cb240"><pre class="sourceCode r"><code class="sourceCode r"><a class="sourceLine" id="cb240-1" data-line-number="1">Package<span class="op">:</span><span class="st"> </span>kdpackage0</a>
<a class="sourceLine" id="cb240-2" data-line-number="2">...</a>
<a class="sourceLine" id="cb240-3" data-line-number="3">Imports<span class="op">:</span></a>
<a class="sourceLine" id="cb240-4" data-line-number="4"><span class="st"> </span>dplyr,</a>
<a class="sourceLine" id="cb240-5" data-line-number="5"> tm</a></code></pre></div>
</div>
<div id="build-the-package" class="section level2">
<h2><span class="header-section-number">15.6</span> Build the package</h2>
<p>In the menu, click Build > Install & Restart (or Build & Reload).
The pacakge should now be installed and available in your list of packages.</p>
</div>
<div id="making-changes" class="section level2">
<h2><span class="header-section-number">15.7</span> Making changes</h2>
<p>If you make chnages to your package functions or documentation, you will need to re-build it again.</p>
<p><a href="http://web.mit.edu/insong/www/pdf/rpackage_instructions.pdf" class="uri">http://web.mit.edu/insong/www/pdf/rpackage_instructions.pdf</a>
<a href="http://tinyheero.github.io/jekyll/update/2015/07/26/making-your-first-R-package.html" class="uri">http://tinyheero.github.io/jekyll/update/2015/07/26/making-your-first-R-package.html</a></p>
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