Re: [R] simple data.frame question
Hi Troels, Not sure this is what you want. > X<-runif(9,0,10) > FF1<-data.frame(ID=c(1,2,3)[rep(c(1,1,1,2,2,2,3,3,3))], > PERIOD=c(1,2,3)[rep(c(1,2,3),times=3)],X=X) > FF1$X[4]<-NA > FF1 ID PERIOD X 1 1 1 8.27119347 2 1 2 9.64698097 3 1 3 2.74132386 4 2 1 NA 5 2 2 4.29322683 6 2 3 5.09269667 7 3 1 4.07936332 8 3 2 7.41808455 9 3 3 0.01558664 A.K. - Original Message - From: Troels Ring To: r-help@r-project.org Cc: Sent: Wednesday, May 16, 2012 11:56 AM Subject: [R] simple data.frame question Dear friends - I hope you will forgive me another simple question, illustrated by ID <- c(1,1,1,2,2,3,3,3) PERIOD <- c(1,2,3,2,3,1,2,3) X <- runif(8,0,10)) FF <- data.frame(ID=ID,PERIOD=PERIOD,X=X) I need to the fourth value of X as NA, and ID and PERIOD is updated to 1,1,1,2,2,2,3,3,3 and 1,2,3,1,2,3,1,2,3 respectively. How do I use the pattern in ID and PERIOD to find the lacking X and put NA? Best wishes Troels Ring, Aalborg, Denmark __ 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. __ 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.
Re: [R] simple data.frame question
Thanks a lot - beautiful Troels Den 16-05-2012 19:29, David Winsemius skrev: On May 16, 2012, at 11:56 AM, Troels Ring wrote: Dear friends - I hope you will forgive me another simple question, illustrated by ID <- c(1,1,1,2,2,3,3,3) PERIOD <- c(1,2,3,2,3,1,2,3) X <- runif(8,0,10)) Extraneous paren removed: FF <- data.frame(ID=ID,PERIOD=PERIOD,X=X) I need to the fourth value of X as NA, and ID and PERIOD is updated to 1,1,1,2,2,2,3,3,3 and 1,2,3,1,2,3,1,2,3 respectively. How do I use the pattern in ID and PERIOD to find the lacking X and put NA? > ffnew=merge(x=expand.grid(1:3,1:3), + y=FF, by =1:2, all.x=TRUE) > ffnew Var1 Var2 X 111 6.6294571 212 0.5749111 313 8.7895630 421NA 522 5.7213062 623 6.1030507 731 8.9182841 832 4.2823937 933 8.8249263 Best wishes Troels Ring, Aalborg, Denmark __ 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. David Winsemius, MD West Hartford, CT __ 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.
Re: [R] simple data.frame question
On May 16, 2012, at 11:56 AM, Troels Ring wrote: Dear friends - I hope you will forgive me another simple question, illustrated by ID <- c(1,1,1,2,2,3,3,3) PERIOD <- c(1,2,3,2,3,1,2,3) X <- runif(8,0,10)) Extraneous paren removed: FF <- data.frame(ID=ID,PERIOD=PERIOD,X=X) I need to the fourth value of X as NA, and ID and PERIOD is updated to 1,1,1,2,2,2,3,3,3 and 1,2,3,1,2,3,1,2,3 respectively. How do I use the pattern in ID and PERIOD to find the lacking X and put NA? > ffnew=merge(x=expand.grid(1:3,1:3), + y=FF, by =1:2, all.x=TRUE) > ffnew Var1 Var2 X 111 6.6294571 212 0.5749111 313 8.7895630 421NA 522 5.7213062 623 6.1030507 731 8.9182841 832 4.2823937 933 8.8249263 Best wishes Troels Ring, Aalborg, Denmark __ 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. David Winsemius, MD West Hartford, CT __ 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.
[R] simple data.frame question
Dear friends - I hope you will forgive me another simple question, illustrated by ID <- c(1,1,1,2,2,3,3,3) PERIOD <- c(1,2,3,2,3,1,2,3) X <- runif(8,0,10)) FF <- data.frame(ID=ID,PERIOD=PERIOD,X=X) I need to the fourth value of X as NA, and ID and PERIOD is updated to 1,1,1,2,2,2,3,3,3 and 1,2,3,1,2,3,1,2,3 respectively. How do I use the pattern in ID and PERIOD to find the lacking X and put NA? Best wishes Troels Ring, Aalborg, Denmark __ 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.
Re: [R] simple data.frame question
Your first statement may create a data frame, but your second statement now store a vector in an object with the same name, but is now not a data frame, that is why it "appears" that the first row is overwritten. What are you trying to do? On 10/23/07, pharos <[EMAIL PROTECTED]> wrote: > > Hi, > > At first I have to admit that I'm quite new to R and need some basic > information. Although I searched the internet and this forum where I found > answers to really sophisticated questions, I couldn't find the answer to my > really simple one - or I didn't understand it for English is not my > mothertongue. > I'm using Rpad to simulate a webserver on my PC. Further I've got an html > with some checkboxes/radiobuttons. My first code-chunk attempts to > create a data.frame (but I don't know, if I've done it correct): > >[i]statistik <- data.frame(car = factor(), ubahn = factor () [...], > quantity = numeric())[/i] > > When clicking on a button, I want to submit the values from the to > the data.frame. > >[i]statistik <- c(car, autobus, ubahn, strassenbahn, bicycle, walk, > quantity)[/i] > > When clicking another buttons I want to show the saved values. > >[i]print(statistik)[/i] > > What in fact happens is that by submiting the values, the first row of the > data.frame is overwritten. At least that's what it looks like to me. If you > need any further information, please let me know. > I'd allready be happy if you could point out what's the exact place to look > for in some kind of manual. Thanks for your help! > > -- > View this message in context: > http://www.nabble.com/simple-data.frame-question-tf4679785.html#a13371775 > 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. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem you are trying to solve? __ 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.
[R] simple data.frame question
Hi, At first I have to admit that I'm quite new to R and need some basic information. Although I searched the internet and this forum where I found answers to really sophisticated questions, I couldn't find the answer to my really simple one - or I didn't understand it for English is not my mothertongue. I'm using Rpad to simulate a webserver on my PC. Further I've got an html with some checkboxes/radiobuttons. My first code-chunk attempts to create a data.frame (but I don't know, if I've done it correct): [i]statistik <- data.frame(car = factor(), ubahn = factor () [...], quantity = numeric())[/i] When clicking on a button, I want to submit the values from the to the data.frame. [i]statistik <- c(car, autobus, ubahn, strassenbahn, bicycle, walk, quantity)[/i] When clicking another buttons I want to show the saved values. [i]print(statistik)[/i] What in fact happens is that by submiting the values, the first row of the data.frame is overwritten. At least that's what it looks like to me. If you need any further information, please let me know. I'd allready be happy if you could point out what's the exact place to look for in some kind of manual. Thanks for your help! -- View this message in context: http://www.nabble.com/simple-data.frame-question-tf4679785.html#a13371775 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.
