Programming with R

How-To Tutorials Tips - R Programming for Humans

Automated Programmatic Website Screenshots in R with {webshot} [Video Tutorial]

In this video tutorial, We explore the R package {webshot} by Winston Chang. This package internally uses phantom js to capture screenshot of web pages / websites, Shiny Applications, RMarkdown documents. {webshot} also lets you take screenshot of a particular viewport or a section of website selected by css selector. Youtube: https://youtu.be/oQKwd1cgiq4 Please subscribe and leave a comment if you have any feedback. I’m new for this Video making so any suggestion/feedback to improve would be a great benefit!

How to do Excel VLOOKUP in R (using left_join, merge)

This tutorial helps you code Excel’s VLOOKUP (Exact Match) functionality in R using dplyr’s left_join() and Base-R’s merge(). Please let me know your feedback if this can help Excel users try out R and get confident about doing Data Analytics in R Youtube - https://www.youtube.com/watch?v=GsxlOwa4dSg Video Tutorial Code # library tidyverse for data manipulation and plot library(tidyverse) # reading input dataset co2 <- read_csv("C:/users/abdrs/Downloads/food_consumption.csv") countries <- read_csv("C:/users/abdrs/Downloads/Countries-Continents.

Easy ggplot2 Theme customization with {ggeasy}

In this post, We’ll learn about {ggeasy} an R package by Jonathan Carroll. The goal of {ggeasy} is to help R programmers make ggplot2 theme customizations with simple-easy English functions. (much easier than playing with theme()) We use dataset generated by {fakir} for this tutorial. Youtube: https://youtu.be/iAH1GJoBZmI Video Tutorial Code library(fakir) library(tidyverse) library(ggeasy) # generate dataset clients <- fakir::fake_ticket_client(100) # rotate x axis labels clients %>% count(state) %>% ggplot() + geom_col(aes(state,n)) + easy_rotate_x_labels() # color the text and increase text size clients %>% count(state) %>% ggplot() + geom_col(aes(n,state), fill = "orange") + easy_text_color("orange") + easy_text_size(25, teach = TRUE) # move legend position clients %>% count(state, source_call) %>%# View() ggplot() + geom_col(aes(n,state, fill = source_call)) + #easy_move_legend("bottom", teach = TRUE) theme(legend.

How to make Powepoint Slides PPT using RStudio in 2020

The reason I wanted to make this short tutorial is because there are a lot of old tutorial available on Internet to help you make a powerpoint using R. But some time back RStudio made this new option available that makes it extremely easy and simple to make a Powerpoint Presentation with R outputs in it. powerpointslides Check it yourself + By going to File -> New File -> R Markdown + Then, Presentation -> Powerpoint