Concatenate columns and add them to beginning of Data Frame

Question

Noob here to R. Trying to figure something out. I need to build a function that adds a new column to the beginning of a dataset. This new column is a concatenation of the va

Answer 1

This should do the trick

addPrimaryKey <-function(df, cols){

   q<-apply(df[,cols], 1, function(x) paste(x, collapse=""))

   df<-cbind(q, df)

   return(df)

}

Just add in some conditional logic for your nulls