Answers for "loop through columns in dataframe r"

Python

add columns to dataframe r loop

for(i in 1:3) {                                   # Head of for-loop
  new <- 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
}

Posted by: Guest on March-01-2021

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python loop through column in dataframe

# Iterate over two given columns only from the dataframe
for column in empDfObj[['Name', 'City']]:
   # Select column contents by column name using [] operator
   columnSeriesObj = empDfObj[column]
   print('Colunm Name : ', column)
   print('Column Contents : ', columnSeriesObj.values)

Posted by: Guest on March-04-2020

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