[R] Call R program from C++ code

Hi All: I'm developing an application program using C++. From my C++ code, I would call some R program I have written. I' wondering if R provide some compiler that can compile R program into executable program. I searched R-help, there are a lot of posts talking about writing C++

Re: [R] Call R program from C++ code

-Original Message- From: Dirk Eddelbuettel [mailto:[EMAIL PROTECTED] On Behalf Of Dirk Eddelbuettel Sent: 2007年7月29日 18:17 To: Feng Qiu Cc: r-help@stat.math.ethz.ch Subject: Re: [R] Call R program from C++ code On Sun, Jul 29, 2007 at 04:35:51PM -0400, Feng Qiu wrote: I'm

[R] how to preserve trained model in LDA?

Hi all: I'm developing an application in which I use standard data to train the model in LDA and use the trained model to predict on test data. I can't train the model every time when I do prediction. So I need to save the trained model onto disk after the first training. Does

[R] anyone konw Polyclass package in R?

Hi everyone: Polyclass is a polytomous logistic regression model using linear splines and their tensor products. It provides estimates for conditional class probabilities which can then be used to predict class labels. I know there is Polyclass package in S-plus. So I'm wondering if

Re: [R] how to get the index of entry with max value in an array?

Thank you guys! I got it. Best, Feng - Original Message - From: Benilton Carvalho [EMAIL PROTECTED] To: Feng Qiu [EMAIL PROTECTED] Cc: r-help@stat.math.ethz.ch Sent: Thursday, January 18, 2007 12:20 AM Subject: Re: [R] how to get the index of entry with max value in an array

[R] how to get the index of entry with max value in an array?

Hi all: A short question: For example, a=[3,4,6,2,3], obviously the 3rd entry of the array has the maxium value, what I want is index of the maxium value: 3. is there a neat expression to get this index? Thank you! Best, Feng [[alternative HTML version deleted]]

[R] How to use RBF nueral network to predict

Hi all: I'm trying to use RBF neural network for predicting. The package I'm using now is neural. The type of network that I have to use is RBF. But I didn't find predict function in this package. Does anyone have such an experience? Any advice is appreciated! Thank you!

[R] logistic regression packages

Hi All: I'm testing a set of data classification algorithms in this paper (www.stat.wisc.edu/~loh/treeprogs/quest1.7/mach1317.pdf ) I couldn't find such algorithms in R packages: 1. LOG: polytomous logistic regression (there was one in MASS library: multinom. But after I

Re: [R] logistic regression packages

. multinom is is the nnet package 2. There is a polyclass function in package polspline On 10/01/07, Feng Qiu [EMAIL PROTECTED] wrote: Hi All: I'm testing a set of data classification algorithms in this paper (www.stat.wisc.edu/~loh/treeprogs/quest1.7/mach1317.pdf ) I couldn't find

[R] Is there a function for this?

Hi everybody, I'm trying to do a statistic on the error rate of a prediction algorithm. suppose this is the real category [good, good, bad, bad, good, good, bad, bad] this is the predicted category [good, bad, bad, bad, good, good, good, bad] I'm trying to do a statistic on the error rate for

Re: [R] Any container in R?

Message - From: Thomas Lumley [EMAIL PROTECTED] To: Feng Qiu [EMAIL PROTECTED] Cc: Duncan Murdoch [EMAIL PROTECTED]; r-help@stat.math.ethz.ch Sent: Monday, January 01, 2007 3:21 PM Subject: Re: [R] Any container in R? On Mon, 1 Jan 2007, Feng Qiu wrote: Hi Duncan: Thank you very much

[R] Any container in R?

R has list and array to contain elements. But does R have more powerful container, such as map as in C++ STL? or is there such a package? Thanks and Happy 2007! Best, Feng __ R-help@stat.math.ethz.ch mailing list

Re: [R] Any container in R?

a new entry in the column. Best, Feng - Original Message - From: Duncan Murdoch [EMAIL PROTECTED] To: Feng Qiu [EMAIL PROTECTED] Cc: r-help@stat.math.ethz.ch Sent: Monday, January 01, 2007 10:37 AM Subject: Re: [R] Any container in R? On 1/1/2007 10:17 AM, Feng Qiu wrote: R has list

Re: [R] Any container in R?

Hi Duncan: Thank you very much! I checked out unique(), it does exactly what I want. But I'm still curious about if R provides STL(standard template library). Best, Feng - Original Message - From: Duncan Murdoch [EMAIL PROTECTED] To: Feng Qiu [EMAIL PROTECTED] Cc: r-help

Re: [R] Problems with R

You got to supply the absolute path of your files and the seperating symbol in your csv file. Please read the help file by typing help(read.csv), you will have no problem. - Original Message - From: Obinna Duru [EMAIL PROTECTED] To: r-help@stat.math.ethz.ch Sent: Monday, January 01,

Re: [R] How to write string dynamicly?

] To: Feng Qiu [EMAIL PROTECTED] Cc: r-help@stat.math.ethz.ch Sent: Wednesday, December 27, 2006 1:56 PM Subject: Re: [R] How to write string dynamicly? Try: lda(iris[-5], iris[,5]) On 12/26/06, Feng Qiu [EMAIL PROTECTED] wrote: Hi everyone: I'm trying to compose a string dynamicly

[R] How to write string dynamicly?

Hi everyone: I'm trying to compose a string dynamicly for the parameter input of some function. For example: In package MASS, function lda() require to input the name of predictor variable. Let's say the 16th column is the predictor variable. Then we call the function like this:

[R] How to debug R program?

Hi everyone: I wrote a R program which has loops. When I run the program, it crashed. I would like to identify in which loop the pragram crashed, how can I debug ? I'm new to R, could somebody please give me a general idea about debugging in R.(I'm a C/C++ programmer and have

[R] packages about discriminant analysis

Hi guys: I'm testing some statistic discriminant analysis methods in R. But I couldn't find the package for these methods: 1. Discriminant analysis implemented with nearest neighbor method, 2. logistic discriminant analysis 3. POLYCLASS algorithm(

[R] Help concerning Lasso::l1ce

Hi, First, when I try the example Prostate with bound 0.44 (as in the manual), I got a different result: l1c.P - l1ce(lpsa ~ ., Prostate, bound=0.44) l1c.P … Coefficients: (Intercept) lcavol lweight age lbph svi 1.0435803 0.4740831 0.1953156 0.000