title: Data manipulation on multiple dataframes in R
body: <p>Suppose i have some dataframes A_January, A_February, A_December etc with some 10 columns each...</p>
  
  <p>All of them have the same 10 columns..
  I need to do some data manipulation on one of the 10 columns and produce a new bunch of columns in each of the data frames.. I can do this manually for all dataframes, but i have 400 such dataframes..</p>
  
  <p>How do i do this?. please let me know...
  Suppose, i need to do the same set of operations on multiple dataframes...(create new variables, sort them etc etc)
  A_January$New_var&lt;-A_January$Var1+A_January$Var2</p>
  
  <p>How do i do this?. How can i put this in a loop and make it happen? PLease let me know</p>