I have the following code which I wanted to convert using for loop previous code: R_ev1 <- R_event[R_event > (rx[1] + 300*0)& R_event <= (rx[1] + 300*1)] R_ev2 <- R_event[R_event > (rx[1] + 300*1)& R_event <= (rx[1] + 300*2)] R_ev3 <- R_event[R_event > (rx[1] + 300*2)& R_event <= (rx[1] + 300*3)] R_ev4 <- R_event[R_event > (rx[1] + 300*3)& R_event <= (rx[1] + 300*4)]
R_ev5 <- R_event[R_event > (rx[1] + 300*4)& R_event <= (rx[1] + 300*5)] R_ev6 <- R_event[R_event > (rx[1] + 300*5)& R_event <= (rx[1] + 300*6)] R_ev7 <- R_event[R_event > (rx[1] + 300*6)& R_event <= (rx[1] + 300*7)] R_ev8 <- R_event[R_event > (rx[1] + 300*7)& R_event <= (rx[1] + 300*8)] R_ev9 <- R_event[R_event > (rx[1] + 300*8)& R_event <= (rx[1] + 300*9)] R_ev10 <- R_event[R_event > (rx[1] + 300*9)& R_event <= (rx[1] + 300*10)] R_ev11 <- R_event[R_event > (rx[1] + 300*10)& R_event <= (rx[1] + 300*11)] R_ev12 <- R_event[R_event > (rx[1] + 300*11)& R_event <= (rx[1] + 300*12)] R_ev13 <- R_event[R_event > (rx[1] + 300*12)& R_event <= (rx[1] + 300*13)] R_ev14 <- R_event[R_event > (rx[1] + 300*13)& R_event <= (rx[1] + 300*14)] R_ev15 <- R_event[R_event > (rx[1] + 300*14)& R_event <= (rx[1] + 300*15)] R_ev16 <- R_event[R_event > (rx[1] + 300*15)& R_event <= (rx[1] + 300*16)] R_ev1c <- as.character(R_ev1) R_ev2c <- as.character(R_ev2) R_ev3c <- as.character(R_ev3) R_ev4c <- as.character(R_ev4) R_ev5c <- as.character(R_ev5) R_ev6c <- as.character(R_ev6) R_ev7c <- as.character(R_ev7) R_ev8c <- as.character(R_ev8) R_ev9c <- as.character(R_ev9) R_ev10c <- as.character(R_ev10) R_ev11c <- as.character(R_ev11) R_ev12c <- as.character(R_ev12) R_ev13c <- as.character(R_ev13) R_ev14c <- as.character(R_ev14) R_ev15c <- as.character(R_ev15) R_ev16c <- as.character(R_ev16) lis1 <- c( length(R_ev1c), length(R_ev2c), length(R_ev3c), length(R_ev4c), length(R_ev5c), length(R_ev6c), length(R_ev7c), length(R_ev8c), length(R_ev9c), length(R_ev10c), length(R_ev11c), length(R_ev12c), length(R_ev13c), length(R_ev14c), length(R_ev15c), length(R_ev16c) ) # R_ev1_mat <- matrix(unlist(R_ev1),nrow=T) barplot(lis1, angle = 15+10*1:5, density = 20, col = "black", legend = rownames(lis1)) title(main = list("Number of Occurred Received events in every 5 mins", font = 4)) # dev.off() New code: f1<- seq(rx[1],rx[2],by=300) f<- as.character(f1) len <- length(f) for (n1 in 0:(len-1)){ for(n2 in 1:len){ # R_ev_01 <- R_event[R_event <= (rx[1] + 300)] R_ev[n1] <- R_event[R_event > (rx[1]+ n1*300)& R_event <= (rx[1] + 300*n2)] R_ev_char <- as.character(R_ev) lis01 <- list(length(R_ev_char)) barplot(lis01, angle = 15+10*1:5, density = 20, col = "blue", legend = rownames(lis01)) title(main = list("Number of Occurred Received Events in every 5 mins", font = 4)) } } Somehow it is not working and giving an error saying "Fehler in -0.01 * height : nicht-numerisches Argument für binären Operator". Any help would be really appreciated. Thanks Crenial -- View this message in context: http://www.nabble.com/loop-problem-tp25665329p25665329.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.