Re: [R] Aggregate with Function List ?

2012-03-07 Thread Michael Karol
(x, na.rm=TRUE), max(x, na.rm=TRUE) ) ) # Show results MeansByDayTime Thank you Regards, Michael -Original Message- From: r-help-boun...@r-project.org [mailto:r

Re: [R] Aggregate with Function List ?

2012-03-05 Thread Michael Karol
lar Suggestions? Regards,  Michael -Original Message- From: David Winsemius [mailto:dwinsem...@comcast.net] Sent: Thursday, February 23, 2012 1:55 PM To: Michael Karol Cc: r-help@r-project.org Subject: Re: [R] Aggregate with Function List ? On Feb 23, 2012, at 1:41 PM, Michael Karol wrote:

[R] Aggregate with Function List ?

2012-02-23 Thread Michael Karol
R Experts I wish to tabulate into one data frame statistics summarizing concentration data. The summary is to include mean, standard deviation, median, min and max. I wish to have summaries by Dose, Day and Time. I can do this by calling aggregate once for each of the statistics (mean, s

[R] Equivalent to regMatchPos in R.

2011-09-27 Thread Michael Karol
R Experts: I am trying to isolate the numeric value of day from a string that might look like "Cycle 1 Day 8" or "Cycle 12 Day 15". In essence, what I need is a function that can look at a character string and tell me the location within the string where it matches with a given string. I

[R] Help with format()

2011-08-19 Thread Michael Karol
R Users: Can anyone please help me with the following: I'm unclear as to how to get format to do what I want. I've tried the following and get unexpected results. Input. val<-321.6 format(val, digits=1) format(val, digits=2) format(val, digits=3) format(val, digits=4) format(val, digi

Re: [R] Data frame to list?

2011-08-11 Thread Michael Karol
Perhaps the split() function would do. Regards,  Michael -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Jonathan Greenberg Sent: Wednesday, August 10, 2011 10:36 PM To: r-help Subject: [R] Data frame to list? R-helpers: Is there

[R] Help with aggregate syntax for a multi-column function please.

2011-08-02 Thread Michael Karol
Dear R-experts: I am using a function called AUC whose arguments are data, time, id, and dv. data is the name of the dataframe, time is the independent variable column name, id is the subject id and dv is the dependent variable. The function computes area under the curve by trapezoidal

Re: [R] Tools for professional R developers

2011-07-28 Thread Michael Karol
Hi Uwe: You might want to take a look at RStudio (http://rstudio.org/). Regards,  Michael -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Bert Gunter Sent: Thursday, July 28, 2011 3:24 PM To: Uwe Ligges Cc: r-help@r-project.or

[R] graphsheet and export.graph equivalents in R?

2011-06-17 Thread Michael Karol
R Experts I'm currently using an S+ script of the following format and would like to convert it to R. The script opens a graphsheet with an associated name, plots something (in this case a boxplot) and then exports the contents of the graphsheet of the assigned name to an EMF file. I've bee