add columns to dataframe r loop
for(i in 1:3) { # Head of for-loop new &lt;- rep(i, nrow(data)) # Create new column data[ , ncol(data) + 1] <- new # Append new column colnames(data)[ncol(data)] <- paste0("new", i) # Rename column name }
add columns to dataframe r loop
for(i in 1:3) { # Head of for-loop new &lt;- rep(i, nrow(data)) # Create new column data[ , ncol(data) + 1] <- new # Append new column colnames(data)[ncol(data)] <- paste0("new", i) # Rename column name }
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