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Curtis Kephart

Posts and resources by Curtis Kephart#

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String manipulation with stringr

Manipulate character strings in R with stringr to detect, subset, transform, join, split, and match patterns using regex

Garrett Grolemund, Mine Çetinkaya-Rundel, Averi Perny, Andy Teucher, Ryan Zomorrodi, Curtis Kephart, Elen Le Foll, David Díaz Rodríguez

stringr

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RStudio IDE

Navigate the RStudio IDE’s source editor, pane layout, Git integration, debugging tools, code diagnostics, and keyboard shortcuts

Garrett Grolemund, Mine Çetinkaya-Rundel, Averi Perny, Curtis Kephart, Andy Teucher, David Díaz Rodríguez

rstudio

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rmarkdown

Produce dynamic reports, presentations, and dashboards by weaving R code and Markdown text together in.Rmd files rendered to HTML, PDF, or Word

Mine Çetinkaya-Rundel, Averi Perny, Garrett Grolemund, Andy Teucher, Curtis Kephart, David Díaz Rodríguez

rmarkdown

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REST APIs with plumber

Turn R functions into REST API endpoints using plumber, with filters, parsers, serializers, routing, and Swagger documentation support

Mine Çetinkaya-Rundel, James Blair, Andy Teucher, Curtis Kephart, Averi Perny, David Díaz Rodríguez

plumber

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Package Development

Build R packages using devtools and usethis to set up structure, write and document code with roxygen2, test with testthat, and publish

Mine Çetinkaya-Rundel, Garrett Grolemund, Andy Teucher, Curtis Kephart, Averi Perny, David Díaz Rodríguez

devtools usethis

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Importing data with the tidyverse

Learn about readr, readxl, haven, and googlesheets4

Garrett Grolemund, Mine Çetinkaya-Rundel, Averi Perny, Andy Teucher, Curtis Kephart, Hadley Wickham, David Díaz Rodríguez

readr readxl haven googlesheets4

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Factors with forcats

Work with categorical data in R using forcats to create, inspect, reorder, recode, and collapse factor levels

Mine Çetinkaya-Rundel, Averi Perny, Andy Teucher, Curtis Kephart, Garrett Grolemund, David Díaz Rodríguez

forcats

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Data visualization with ggplot2

Build graphics layer by layer with ggplot2 using the grammar of graphics: data, aesthetics, geoms, stats, scales, coordinates, and themes

Mine Çetinkaya-Rundel, Garrett Grolemund, Averi Perny, Curtis Kephart, Andy Teucher, Thomas Lin Pedersen, David Díaz Rodríguez

ggplot2

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Data transformation with dplyr

Manipulate data frames with dplyr using filter, select, mutate, summarize, join, and group operations in a consistent, pipeable API

Garrett Grolemund, Mine Çetinkaya-Rundel, Averi Perny, Andy Teucher, Curtis Kephart, David Díaz Rodríguez

dplyr

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Data tidying with tidyr

Reshape data to tidy format with tidyr using pivot functions, handle missing values, and split or combine columns

Mine Çetinkaya-Rundel, Garrett Grolemund, Averi Perny, Andy Teucher, Curtis Kephart, David Díaz Rodríguez

tidyr

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Data science in Spark with sparklyr

Connect to Apache Spark from R with sparklyr to import, wrangle with dplyr, model with MLlib, and communicate large-scale data results

Mine Çetinkaya-Rundel, Garrett Grolemund, Edgar Ruiz, Andy Teucher, Curtis Kephart, David Díaz Rodríguez

sparklyr

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Apply functions with purrr

Apply functions over lists and vectors with purrr’s map, map2, and pmap families, and work with reduce, walk, and list manipulation tools

Garrett Grolemund, Mine Çetinkaya-Rundel, Averi Perny, Andy Teucher, Curtis Kephart, Hadley Wickham, Marie-Helene Burle, David Díaz Rodríguez

purrr

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Use Python with R with reticulate

Call Python from R, import modules, source scripts, and pass objects between languages using reticulate with automatic virtual environment management

Edgar Ruiz, Mine Çetinkaya-Rundel, Andy Teucher, Tomasz Kalinowski, Averi Perny, Garrett Grolemund, Curtis Kephart, David Díaz Rodríguez

reticulate

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Shiny for R

Build interactive web apps in R by pairing a reactive UI with a live R server session, and share them via Posit Connect, Posit Connect Cloud, or Shinylive

Mine Çetinkaya-Rundel, Garrett Grolemund, Andy Teucher, Carson Sievert, Averi Perny, Greg Swinehart, Isabella Velásquez, Curtis Kephart, Frank Briody, Edgar Ruiz, David Díaz Rodríguez

Shiny

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Dates and times with lubridate

Parse, manipulate, and perform arithmetic on dates, times, and date-time objects in R using lubridate

Garrett Grolemund, Mine Çetinkaya-Rundel, Andy Teucher, Averi Perny, Curtis Kephart, Mara Averick, Wouter Overmeire, David Díaz Rodríguez

lubridate

blog post

Aug 5, 2019

The Shiny Developer Series

The Shiny Developer Series: video interviews with package authors and advanced Shiny techniques

Curtis Kephart