Remove leading 0 with ggplot2

I recently had an occasion while working on a three variable interaction plot for a paper where I wanted to remove the leading 0’s in the x-axis text labels using ggplot2. This was primarily due to some space concerns I had for the x-axis labels. Unfortunately, I did not find an obvious way to do this in my first go around. After tickering a bit, I’ve found a workaround. The process is walked through below.

Read More…

Dodged bar charts, why not a line graph?

I often see graphs that are poorly implemented in that they do not achieve their goal. One such type of graph that I see are dodged bar charts. Here is an example of a dodged bar chart summarizing the number of all star players by team (focusing specifically on the AL central division) and year from the Lahman r package: library(Lahman) library(dplyr) library(ggplot2) library(RColorBrewer) AllstarFull$selected <- 1 numAS <- AllstarFull %>% filter(yearID > 2006, lgID == 'AL', teamID %in% c('MIN', 'CLE', 'DET', 'CHA', 'KCA')) %>% group_by(teamID, yearID) %>% summarise(number = sum(selected)) b <- ggplot(numAS, aes(x = teamID, y = number, fill = factor(yearID))) + theme_bw() b + geom_bar(stat = "identity", position = "dodge") + scale_fill_brewer("Year", palette = "Dark2") Note: If you are curious from the above graph, there appears to be two typos in the teamIDs, where CHA should be CHW (Chicago White Sox) and KCA should be KCR (Kansas City Royals).

Read More…

Format Markdown Documents in R

Have you ever used a markdown file to create an html file? Have you ever wanted to quickly format the subsequent html file to add some color or other aspects? If your answer is yes to both of those questions, this package may be of interest to you. The highlightHTML package aims to develop a flexible approach to add formatting to an html document by injecting CSS into the file.

Read More…