kurdtc questions

• R: Save all data.frames in workspace to separate .RData files
• R: Save multiple plots from a file list into a single file (png or pdf or other format)
• Add file extension to all files in a folder in R
• R: Filter two data.frames for duplicated values in two columns and by groups
• R: need finite 'ylim' values in function
• R: Add text to plots in lower rightern corner outside plot area
• R: Text progress bar in for loop

kurdtc answers