[R] How to call R routines in C++`

2009-09-03 Thread lehe
Hi, I have some results generated in my C++ program. I 'd like to call some R functions that can test if two sample sets are from different distribution, like Kolmogorov-Smirnov and other more sophisticated Tests. I also like to draw the histograms of the two sample sets in the same plot using R.

[R] extract decision tree from rpart

2009-05-14 Thread lehe
Hi, I am using rpart for my decision stump. I am trying to extract the learned stump from the output of rpart. For example: cntrl <- rpart.control(maxdepth = 1, minsplit = learn-1, maxsurrogate = 0, usesurrogate=0, maxcompete = 1, cp = 0,

[R] latex.table used with mixed string and numbers

2009-05-14 Thread lehe
Hi, I am using latex.table to write my results into a latex table. If my results is like a matrix except that some column has strings and others have numbers. Is it possible to feed my results into latex.table? Thanks and regards! -- View this message in context: http://www.nabble.com/latex.tabl

Re: [R] specify the number of decimal numbers

2009-05-14 Thread lehe
[,1] [,2] [,3] [,4] > [1,] 0.718 0.935 0.2670 0.870 > [2,] 0.992 0.212 0.3860 0.340 > [3,] 0.380 0.652 0.0134 0.482 > [4,] 0.777 0.126 0.3820 0.600 >> > > Can you specify what you want and how are you going to use it. Is it for > generating a report? > On Thu,

Re: [R] specify the number of decimal numbers

2009-05-14 Thread lehe
f': > >> x <- 1.23456789 >> x > [1] 1.234568 >> as.character(x) > [1] "1.23456789" >> sprintf("%.1f %.3f %.5f", x,x,x) > [1] "1.2 1.235 1.23457" >> > > > On Thu, May 14, 2009 at 7:40 AM, lehe wrote: > &g

[R] specify the number of decimal numbers

2009-05-14 Thread lehe
Hi, I was wondering how to specify the number of decimal numbers in my computation using R? I have too many decimal numbers for my result, when I convert them to string with as.character, the string will be too long. Thanks and regards! -- View this message in context: http://www.nabble.com/spec

Re: [R] plotCI line types for line and for bar

2009-05-13 Thread lehe
Thank you! Yes, I am using the plotCI from gplots and I want the line connecting the centers to be dashed, just as for the bars. However changing the type to be "p" as you said does not give dashed line but no line at all (only points). lehe wrote: > > Anyone has some clue

Re: [R] plotCI line types for line and for bar

2009-05-12 Thread lehe
Anyone has some clue to this question? Thanks in advance! lehe wrote: > > Hi, > I was wondering how to specify the line type for line instead of for bar. > Here is my code: > "plotCI(x=mcra1avg, uiw=stdev1, type="l",col=2,lty=2)" > This way, I will have

[R] plotCI line types for line and for bar

2009-05-12 Thread lehe
Hi, I was wondering how to specify the line type for line instead of for bar. Here is my code: "plotCI(x=mcra1avg, uiw=stdev1, type="l",col=2,lty=2)" This way, I will have the bar line as dashed "lty=2" and red "col=2", and the line connecting the centers of the bars is also red "col=2" but solid

Re: [R] Plotting questions (ROCR)

2009-05-08 Thread lehe
Thanks! I am now also trying to plot several ROCs in the same figure using ROCR package. The following code: "pred1 <- prediction(yest1,ytest) perf1 <- performance( pred1, "tpr", "fpr" ) plot( perf1 ) pred2 <- prediction(yest2,ytest) perf2 <- performance( pred2, "tpr", "fpr" ) lines( perf2 )" wi

[R] Plotting questions

2009-05-08 Thread lehe
Hi, I am new to R. I have two questions about plotting in R: 1. How to plot several lines in a figure? Suppose I have several sets of points (xi,yi), where xi and yi are equal-length vector. plot(x1,y1) will give a line connecting these points. Another plot(x2,y2) will erase what plot before and