check this! if it helps!

read_data <- read.csv(DataMatrix)
length <- dim(read_data)[1]
no_of_files <-  10 ##user define
file_no_itr <- length/no_of_files

for(i in 1:no_of_files){
        e_l <- i*file_no_itr
    s_l <- 1 + (i-1)* file_no_itr
        if(i==no_of_files){ e_l <- length}
        read_data_new <- read_data[s_l:e_l,]
        newname <- paste("read_data",i,sep="_")
        assign(read_data_new,newname)
        ### write ur output data code 
        }



-----
Bharat Warule 
Cypress Analytica ,
Pune
--
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