R: Paste two strings without space
You can paste the strings together into one with paste(). Then you can use gsub() to remove all spaces:
merge
Merge problems in R: Error in fix.by(by.x, x) : ‘by’ must specify uniquely valid columns
I have two tables, both of which are aggregate outputs. I’d like to merge them together – they were both aggregated off the same data, so they have the same column names, but for the sake of edification I thought I’d try the specific by.x and by.y methods in the examples of ?merge. It isn’t … Read more