Re: [R] if else statements in data frame

Thanks alot B77S. That was a critical post. -- View this message in context: http://r.789695.n4.nabble.com/if-else-statements-in-data-frame-tp3454646p3455077.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailin

Re: [R] if else statements in data frame

Thanks for the answers. They were very helpful. I did it like below. data$z <- ifelse(data$x == "A" & data$y == "A", "NA", "B"). That is enough for today. I guess I learned a enough today. Thanks to everbody who tried to help. -- View this message in context: http://r.789695.n4.nabble.com/i

Re: [R] if else statements in data frame

Hi ozgrerg, I am not a "good" R user, but according to me you can do this; data <- data.frame(x=c("A","A","B","A"), y=c("A","B","B","B")) for (i in 1:nrow(data)){ if(data$x[i]=="B"||data$y[i]=="B") z[i]=c("B") else z[i]=c("NA") } cbind(data,z) -- View this message in context: http://r.789695.n

[R] if else statements in data frame

Dear R experts, I have again a problem. Let I have a data frame like below: x y -- A A A B B B A B where x and y are the column names. I want to create a new column z where it is elements will be like that, if at each row has there at least one 'B', then z wi

Re: [R] If else statements

tj wrote: > > Thanks Sam for the short but very helpful answer. That's what I only want > to know. > Thanks.=) > > ~tj > Even though you got the answer you were looking for, I would still browse the material Matthew posted. The "Introduction to R" is a standard R manual that helped me g

Re: [R] If else statements

Thanks Sam for the short but very helpful answer. That's what I only want to know. Thanks.=) ~tj -- View this message in context: http://n4.nabble.com/If-else-statements-tp1678705p1679187.html Sent from the R help mailing list archive at Nabble.com. [[alternative HTML version

Re: [R] If else statements

The short answer is yes, you can, but your syntax is wrong. You need to make sure you wrap your conditions inside brackets, and use {, not (, to delineate your if statements. > for (v in 1:6) { > for (i in 2:200) { > if (v==1){ if (max(x*v-y*v)>1) break() } } } et cetera On Tue, M

Re: [R] If else statements

Thanks Matthew... I will read your suggested articles/files. I hope, i will be able to figure out what should be done with this. =) ~tj -- View this message in context: http://n4.nabble.com/If-else-statements-tp1678705p1679073.html Sent from the R help mailing list archive at Nabble.com. ___

Re: [R] If else statements

Here are some references. Please read these first and post again if you are still stuck after reading them. If you do post again, we will need x and y. 1. Introduction to R : 9.2.1 Conditional execution: if statements. 2. R Language Definition : 3.2 Control structures. 3. R for beginners by E Par

[R] If else statements

Hi everyone! May I request again for your help? I need to make some codes using if else statements... Can I do an "if-else statement" inside an "if-else statement"? Is this the correct form of writing it? Thank you.=) Example: for (v in 1:6) { for (i in 2:200) { if (v==1) (if max(x*v-y*v)>1 b