[R] Line in hist count

2015-09-26 Thread bgnumis bgnum
Hi all, Several time ago I used to work with R, now I´m returning to study and work and searching old file I see that I used this code: gfhist<-hist(gf,plot=FALSE) par(mar=c(6,0,6,6)) barplot(gfhist$counts,axes=FALSE, space=0,horiz=TRUE,col="lightgray") grid() title("Marginal Distribution La

Re: [R] Rattle installation

2015-09-26 Thread David Winsemius
On Sep 26, 2015, at 9:59 AM, Haida wrote: > I received below messages during the installation Rattle. please help, > thank you > > Warning in install.packages : > error 1 in extracting from zip file > Warning in install.packages : > cannot open compressed file 'rJava/DESCRIPTION', probable rea

[R] Rattle installation

2015-09-26 Thread Haida
I received below messages during the installation Rattle. please help, thank you Warning in install.packages : error 1 in extracting from zip file Warning in install.packages : cannot open compressed file 'rJava/DESCRIPTION', probable reason 'No such file or directory' Error in install.package

Re: [R] Analysis of causal relations between rare (categorical) events

2015-09-26 Thread giorgio.garzi...@tin.it
Also: https://cran.r-project.org/web/views/Survival.html https://www.youtube.com/watch?v=1Mt7EuVJf1A http://gking.harvard.edu/files/gking/files/0s.pdf?m=1360039053 http://biostat.mc.vanderbilt.edu/wiki/pub/Main/RmS/rms.pdf --- Giorgio Garziano __ R-he

Re: [R] How to calculate standard error of estimate (S) for my non-linear regression model?

2015-09-26 Thread Jeff Newmiller
You may not be a statistician, but you should at least learn about the calculations you are making. You cannot expect to convince others that your calculations are right just because "Peter on the internet said they were right". To give you a gentle push in this direction, I have reproduced th

Re: [R] How to calculate standard error of estimate (S) for my non-linear regression model?

2015-09-26 Thread Bert Gunter
Michael: You appear to be laboring under the illusion that a single numeric summary (**any summary**)is a useful measure of model adequacy. It is not; for details about why not, consult any applied statistics text (e.g. on regression) and/or post on a statistics site, like stats.stackexchange.com.

Re: [R] How to get significance codes after Kruskal Wallis test

2015-09-26 Thread David Winsemius
On Sep 26, 2015, at 6:48 AM, Michael Eisenring wrote: > Thank you very much Kristina, > > Unfortunately that’s not what I am looking for. > > I am just very surprised if there would be no possibility to get the > significance codes for Kruskal Wallis (I would have suggested that this is a > p

Re: [R] How to calculate standard error of estimate (S) for my non-linear regression model?

2015-09-26 Thread peter dalgaard
> On 26 Sep 2015, at 16:46 , Michael Eisenring wrote: > > Dear Peter, > Thank you for your answer. > If I look at my summary I see there a Residual standard error: 1394 on 53 > degrees of freedom. > This number is very high (the fit of the curve is pretty bad I know but > still...). Are you sure

Re: [R] How to calculate standard error of estimate (S) for my non-linear regression model?

2015-09-26 Thread Michael Eisenring
Dear Peter, Thank you for your answer. If I look at my summary I see there a Residual standard error: 1394 on 53 degrees of freedom. This number is very high (the fit of the curve is pretty bad I know but still...). Are you sure the residual standard error given in the summary is the same as the on

Re: [R] How to get significance codes after Kruskal Wallis test

2015-09-26 Thread Michael Eisenring
Thank you very much Kristina, Unfortunately that’s not what I am looking for. I am just very surprised if there would be no possibility to get the significance codes for Kruskal Wallis (I would have suggested that this is a pretty common test.) I found another option called kruskal() which

Re: [R] Multibyte strings

2015-09-26 Thread Dennis Fisher
Peter Thanks for the explanation. One further comment — you wrote: > I don't think the FDA "requests" XPT files In fact, they do make such a request. Here is the actual language received this week (and repeatedly in the past): > Program/script files should be submitted using text files (*.TXT

Re: [R] Analysis of causal relations between rare (categorical) events

2015-09-26 Thread Jim Lemon
Hi Mark, You might find the eventInterval package of use. Jim On Sat, Sep 26, 2015 at 8:33 AM, markshanks wrote: > Hi, > > I have only a relatively basic background in statistics (e.g., anova, > regression), and the books on R I have read so far have focused on > relatively common statistical

Re: [R] Multibyte strings

2015-09-26 Thread peter dalgaard
Dennis, The invalid multibyte issue is almost certainly a symptom of being in a UTF-8 locale and trying to handle strings that aren't in UTF-8. (UTF uses particular 8 bit patterns to say that the following k bytes contain a Unicode value outside ASCII, other "8 bit ASCII" encodings, like Latin-

Re: [R] How to calculate standard error of estimate (S) for my non-linear regression model?

2015-09-26 Thread peter dalgaard
This is one area in which terminology in (computational) statistics has gone a bit crazy. The thing some call "standard error of estimate" is actually the residual standard deviation in the regression model, not to be confused with the standard errors that are associated with parameter estimates

Re: [R] Analysis of causal relations between rare (categorical) events

2015-09-26 Thread Giorgio Garziano
Hi, I may suggest the following book introducing event history analysis with R and showing some datasets to work with: https://www.crcpress.com/Event-History-Analysis-with-R/Brostrm/9781439831649 I am not sure it can answer all your questions about your specific problem (rare events), however i