R Plot that shows how many User% did Postings% - r

Question

Hi everyone i have a question about plotting in R.
I need a line plot that shows how many %users wrote which %postings.
Example would be: 25% of users wrote 80% of postings
Dput output:
data
I read the data into R from csv and attached it with the headers.
Now when i try to plot it with:
plot(UserPc,PostingsPc,ylab = "Users", xlab= "Postings",type="l")
the plot is just a black square, halp

Answer 1

UserPc and PostingsPc cointain "," and "%" so read.csv interprets them as strings (which it reads as factors) rather than numbers. You'll see this if you run str(myData). If you want to plot them, you need to convert them into numbers, which looking at your data requires replacing "," with "." and removing the "%". gsub is a useful function for this, and it's convenient to make the whole operation its own function. Something like this:
MyData <- read.csv(file="data.csv", header=TRUE, sep=";",stringsAsFactors = FALSE)
#write a function that removes all "%" from a string converts "," to "." and returns a numeric
#divide by 100 because it's a percentage
convert <- function(stringpct){
as.numeric(gsub("%","",gsub(",",".",stringpct)))/100
}
MyData$UserPc <- convert(MyData$UserPc)
MyData$PostingsPc <- convert(MyData$PostingsPc)
attach(MyData)
plot(UserPc,PostingsPc,ylab = "Users", xlab= "Postings",type="l")