How do I edit a csv in r to change the headers and data

Hi, I’m new to r and would like to edit a CSV IN R so I can use this data to create graphs. I have no clue how to do this. I’ve imported the data but I need to edit the actual data in the csv in R to change the headers etc and then I need to make this into a graph. I’m just looking for some general advice.

Thanks

I assume you have read the data into a data frame. You can change the column names with the colnames() function. For example, if your data are in a data frame named DF that has three columns, you can set their names like this

colnames(DF) <- c("X_value", "Y_Value", "Group")

Since you are new to R, I will ask why do you need to change the column names?