?findInterval -- Bert
Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 "Data is not information. Information is not knowledge. And knowledge is certainly not wisdom." Clifford Stoll On Thu, Aug 14, 2014 at 9:39 AM, Jaiprasart, Pharavee (HSC) <pharavee-jaipras...@ouhsc.edu> wrote: > Hi Bert, > > I should have phrased my question differently. > > I actually want to do two things. > > First is to make a step plot. The "s"/"S" is a typo on my part. > > The second is to write a script that when I ask the program for Response of > time == 4, I want it to return "6", or if I ask for response of time == 12, > it will return "4", and so on. > > Pharavee > > > -----Original Message----- > From: Bert Gunter [mailto:gunter.ber...@gene.com] > Sent: Thursday, August 14, 2014 11:27 AM > To: Jaiprasart, Pharavee (HSC) > Cc: r-help@r-project.org > Subject: Re: [R] Operating on the value from row i and row i+1 > > Your query is a bit unclear, but I suspect > > ?plot > > and a **careful read** about types "s" and "S" therein would address your > problem. > > Cheers, > Bert > > Bert Gunter > Genentech Nonclinical Biostatistics > (650) 467-7374 > > "Data is not information. Information is not knowledge. And knowledge is > certainly not wisdom." > Clifford Stoll > > > > > On Thu, Aug 14, 2014 at 8:07 AM, Jaiprasart, Pharavee (HSC) > <pharavee-jaipras...@ouhsc.edu> wrote: >> Hi all, >> >> >> >> I'd like to make a step plot of Time vs Response graph. >> >> This is the example of my data frame - the real data frame has more than a >> thousand rows. >> >> >> >> Time Duration of infusion Infusion Rate >> Response Subtype >> >> 0 3 >> 2 5 0 >> >> 3 6 >> 3 6 0 >> >> 9 6 >> 4 4 0 >> >> >> >> I cannot just use type = c("s") for this because I also want to use the >> value of the in between time for further calculation too (If I ask the >> program for Response of time == 4, I want it to return "6"). >> >> >> >> The way I think the script should work is that: >> >> >> >> For all rows that has subtype ==0, if time is between the value of row >> /i/ and /i+1/ (e.g. row 1 and 2 which is 0-3), make a new column >> "Dummy" and return the value of row /i/ from the Response column (e.g. >> 5 in this >> >> example) , and do these for all rows (e.g. any time between row 2 and >> 3 which is 3-9, make a new column and return 6). Then I can say if >> Time>0 (value in column1) and <3 (value from column 1+2), y = value in >> Dummy >> >> >> >> Is there any way to do this in R? >> >> >> >> Thanks! >> >> Pharavee >> >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-help@r-project.org mailing list >> https://urldefense.proofpoint.com/v1/url?u=https://stat.ethz.ch/mailma >> n/listinfo/r-help&k=7DHVT22D9IhC0F3WohFMBA%3D%3D%0A&r=s1Xjgqw9bK2MQxns >> spJiRNsjZKIq%2B8%2Fhu084PPVY11o%3D%0A&m=wxyqWjigDlACZVtOk8tgsAt8iaUOs0 >> k79BnWO1L%2FRUs%3D%0A&s=8d0ca7ccfe0e7c4bac733aa2e8fe9a7068ffcf501cb181 >> e4261e95efc1b0e31a PLEASE do read the posting guide >> https://urldefense.proofpoint.com/v1/url?u=http://www.r-project.org/po >> sting-guide.html&k=7DHVT22D9IhC0F3WohFMBA%3D%3D%0A&r=s1Xjgqw9bK2MQxnss >> pJiRNsjZKIq%2B8%2Fhu084PPVY11o%3D%0A&m=wxyqWjigDlACZVtOk8tgsAt8iaUOs0k >> 79BnWO1L%2FRUs%3D%0A&s=7ca8e5a21aa512fa8bc5669fb6f4ea587d530d4a20146fd >> 526148d17a3d198bc 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.
