similar to: "Executing" a string

Can anybody of the architects of R enlighten me about the reasoning behind the selection of the IEEE 754 mode for the building of R, please? Special points of interest are: 1. The selection seems to be based on the availability of isnan() and finite(). Is this a common way to test for IEEE 754? 2. The C9x draft introduces isfinite() instead of finite() (and as I see, some systems, e.g. the

I try to fit reaction kinetic data to a given hypothetical model consisting of 3 ODEs. After some reading in Bates/Watts and the literature cited there (e.g. Jennrich/Bright) I looked in R for functions that support the use of the matrix exponential method. Until now I used for a similar (but simpler) problem the nls package and fitted against the the parameterized solution function. But this

After the overwhelming response to my last question (many thanks!), I cannot resist to ask the next maybe trivial question: All sources I have looked into tell me about building data frames by reading from files or by putting vectors of data ("column by column") together. Now I would like to create an (empty) data frame with "headings" for every column (column titles) and then

I try to fit subsequentially different nonlinear models to data. Up to now I tried a first model and if I could not fit this one proceeded to another one. Now I would like to handle this automatically. But much to my chagrin I did not find a way for dealing with the error messages from nls(), e.g. getting them as "control information" or at least just returning from nls() without a

I have a problem to understand the way gc_inhibit_torture is defined. In include/Defn.h it is declared as extern, using the __MAIN__ trick this leads to a definition in main/main.c. But in main/memory.c you define (and initialize) gc_inhibit_torture again: int gc_inhibit_torture = 1; /* gets set to zero after initialisations */ Then, in e.g. unix/system.c immediately at the beginning of

I want to report the progress of my attempts to get R running on HP-UX with gcc: Firstly, I could work around the PIC problem by leaving out all the lib stuff (I rebuilt gcc with --enable-share, but this (alone) did not help), e.g. the line gcc -shared -fPIC -o ctest.sl ansari.o fexact.o kendall.o ks.o prho.o swilk.o -L/usr/local/lib -lg2c -lm -L/lib/pa1.1 -L/usr/lib/pa1.1 -u main

Dear all, may be somebody have ideas to my following problem: I have to multiplicate each element of a vector with his position in the sorted vector. This isn't a problem ;-) But now i have a weighting vector with the weight of each observation, and my problem starts. A little example (due to my bad english) maybe helps to understand: x<-c(10,40,50,100) # income vector for instance

Dear R-ers, somehow it is not possible to increase nsize to more than 20000k. When I specify e.g. > R --vsize=10M --nsize=21000K the result is: free total (Mb) Ncells 99658 350000 6.7 Vcells 1219173 1310720 10.0 Maybe I have overlooked s.th.... Marcus -- +------------------------------------------------------- | Marcus Eger | E-Mail: eger.m at gmx.de (NEW) |

Hi, I know it must be written somewhere but I can't find it. I'd like to remove all variables or objects that I've created but not the functions. I look at a few things without success. Is there a R way of doing this? There are to many to create a manual list. Thanks in advance. Yves Gauvreau -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help

plot(rnorm(100000),type="l") plots only about 7e4 lines while the same without type="l" works fine. Is this a feature or a bug or is this configurable? R : Copyright 2000, The R Development Core Team Version 1.1.1 (August 15, 2000) SunOS 5.5.1 Generic_103640-29 sun4u sparc SUNW,Ultra-1 Thanks Adrian -- Adrian Trapletti, Olsen & Associates Ltd., See- feldstrasse

i want to replace certain values of a matrix. i know how to replace them when the values are in a vector. i tried the same way for a matrix and got this answer: la[la==0]<-1 Error in [<-.data.frame(*tmp*, la == 0, value = 1) : matrix subscripts not allowed in replacement i found a way to do this with "for()", but i think this is the worst way to do it. So is there a

I tried to build R-1.1.1 on my HP-UX 10.20 box. For this I installed gcc 2.95.2 and built g77 (version 2.95.2 19991024 (release)). Making R runs to the point, where shared libs are linked. There it reports: make[4]: Entering directory `/disk4/hoffmann/Work/rwork/src/library/ctest/src' gcc -I../../../../include -I/usr/local/include -fPIC -g -O2 -c

gday R friends, I was wondering if anyone could help me with some graphics issues please. I'm processing R in batch on redhat6.2 with some graphics to be imported into msword on NT. For scaling within my doco I want some vector type graphics. win.metafile doesn't seem to be supported on redhat which gives me postscript. postscript is ideal but doesn't contain a preview so I

I was hit by ugly crashes of R, when I tried to read big data sets ("volcano"). So I looked into the code and found the following in character.c (triggered by substr()): I assume that the helper function AllocBuffer() shall facilitate an economic memory management. But the use of realloc() in the else-branch does not conform to ANSI and may hit you with certain compilers. When called

I was hit by ugly crashes of R, when I tried to read big data sets ("volcano"). So I looked into the code and found the following in character.c (triggered by substr()): I assume that the helper function AllocBuffer() shall facilitate an economic memory management. But the use of realloc() in the else-branch does not conform to ANSI and may hit you with certain compilers. When called

Dear R community, I am trying to write my own user defined split function for rpart. I read the example in the tests directory and I understand the general idea of the how to implement user defined splitting functions. However, I am having troubles with addressing the data frame used in calling rpart in my split functions. For example, in the evaluation function that is called once per node,

Hi all, I have a problem which I am biting my teeth into unsuccessfully: (x <- data.frame(S1=c("a","b","d","F"),N1=c(2,4,6,9),N2=c(6,NA,0,6))) S1 N1 N2 1 a 2 6 2 b 4 NA 3 d 6 0 4 F 9 6 > is.na(x) S1 N1 N2 1 FALSE FALSE FALSE 2 FALSE FALSE TRUE 3 FALSE FALSE FALSE 4 FALSE FALSE FALSE No I want to be able to do: 1) Setting

This is my first question to this list and possibly a bit dumb, but anyway: Can anybody tell me, where, e.g. in the "unix" reference release a DEFINITION of char * R_Home can be found? Via Defn.h the "extern" DECLARATION is everywhere, but when I derived a somewhat other main() program my linker complained about the missing definition. Thomas Hoffmann.

On a system with IEEE_754 undefined, I run into an bug, when the value of an element of the first argument (e.g., x[0]) of formatReal() is NA: 1. (format.c:235) if (!R_FINITE ..) gives nanflag=1 (!naflag remains 0) 2. (format.c:272..288) *m gets an value of -2147483643 (from the format fiddling, should not matter to us) 3. (format.c:289) because naflag is zero, m does not

Full_Name: Thomas Hoffmann Version: 1.0.0 OS: OS/2 Warp 4.0 FP 11 Submission from: (NULL) (141.30.125.20) I autoconfigured/configured the src'es w/o having XDR (#undef HAVE_RPC_XDR_H). In saveload.c , at the beginning of the file the XDR code is enclosed by matching #ifdefs. But in the NEW_SAVE_FORMAT section, there are no #ifdefs around the XDR code. Does this imply that using the new