Hi all,
I got a problem with appending data into the *.csv file
like

abc<-read.csv("bbb.csv")   # reading data from one csv file
abc1<-mean(subset(abc,Group=="A"))

hear i have to creat a .csv file and in that i have to create
column's with names  *group, mean* and farther i have to caliculate for
Groups:-A, B, C, D, F
and i have to append data to consicutive rows of groups

can any one suggest how can i farward in this issue

thanks in advance

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