hi R user
mtdno<-paste("data",1:3,sep="")
tyno<-paste("obs",1:5,sep="")
flnm<-paste(mtdno,tyno,"_err.dat",sep="")

flnm  is
[1] "data1obs1_err.dat" "data2obs2_err.dat" "data3obs3_err.dat"
[4] "data1obs4_err.dat" "data2obs5_err.dat"

but actually what i want is data from 1 to  3 and obs from 1 to 5. thus ,I
can read 15 files but not 5 files

how could I  do?
 thanks.
-- 
TANG Jie

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