similar to: a very simple question

Dear all,I want to convert a long integer to a string, and for example, 100000000 I used as.character(1000000000) e.g, and it gives me back 1e+???. What I want is a exact form, not exponential form. Any ideas how to do it? Thank you very much. Regards, Dajiang [[alternative HTML version deleted]]

Dear All, I use nlminb or optim for maximizing likelihood functions. Sometimes, the parameter values happen to be NA, then the program will hang there and iterate forever without stopping. No error message will be produced. So I can not use error catch method such as "try". Are there any suggestions how I can circumvent this problem? Maybe I can time a function, and if the time exceeds

Dear All,I encountered a problem when I use RWeka for prediction. Specifically, I use the following: res=J48(X1~.,data=mydata); predict(res), #it worked fine but when I tried to use a different data set, i.e. predict(res,newdata=mynewdata); all the predictions I get is 0, which apparently is problematic. What is weird is, if I use the old data, but use the newdata option, i.e.

Full_Name: Jeremiah Cohen Version: 2.9.0 OS: Windows XP Submission from: (NULL) (129.59.230.235) I believe there is a bug in the seq() function for certain values of the "from" argument. Here are examples: > seq(-.2, .1, .1) [1] -0.2 -0.1 0.0 0.1 > seq(-.3, .1, .1) [1] -3.000000e-01 -2.000000e-01 -1.000000e-01 5.551115e-17 1.000000e-01 > seq(-.4, .1, .1) [1] -0.4 -0.3

Dear All, I am writing an R library myself. The package build ok, and can be installed. But when I load the library into R using library('xyz'), then I type ?xyz for help in one of the functions named xyz as well, the following error occured, No documentation for 'xyz' in specified packages and libraries: I do put the .Rd files into the man folder, and the html help files are all

Hi everyone, I've tried the below on R 1.9.1 and the 2004-08-30 builds of R 1.9.1 Patched and R 2.0.0 on Windows 2000, and the results are consistent. > seq(0.5, 0, by = -0.1) [1] 0.5 0.4 0.3 0.2 0.1 0.0 > seq(0.7, 0, by = -0.1) [1] 7.000000e-01 6.000000e-01 5.000000e-01 4.000000e-01 3.000000e-01 2.000000e-01 1.000000e-01 -1.110223e-16 Is this really the intended behaviour?

Hi! I'm running R version 2.13.0 (2011-04-13) Platform: i386-pc-mingw32/i386 (32-bit) When i type in the command: sum(c(-0.2, 0.8, 0.8, -3.2, 1.8)) R returns the value: -5.551115e-17 Why doesn't R return zero in this case? There shouldn't be any rounding error in a simple sum. Thanks, Mark

Hi all, Is there any problem of precision when using seq?. For example: x<- seq(0,4,0.1) x[4]=0.3 BUT: x[4]-0.3=5.551115e-17 It means when I use this condition within an if clause, it does not find values with 0.3 for x[4] as it is not precisely 0.3. Is there any bug in seq() ? -- View this message in context: http://r.789695.n4.nabble.com/Inconsistency-using-seq-tp4633739.html Sent from

Hi, I just wonder if this is a rounding error by the princomp command in R. Although this does not make much sense, using a hypothetical dataset, a, a<-matrix(runif(1000),100,10) I did PCA with the princomp, and compared it with the results estimated with the eigen and the prcomp commands. And I found some differences in the results: opposite signs in the loadings; slight differences in

Dear List, I've been running a numerical simulation and I found this odd error in my code where the which command could not identify which rows of a column of data.frame were corresponding to the value 0.3. There are 7 unique values in this column (0.01,0.05,0.1,0.2,0.3,0.4,0.5), and this does not work only for 0.3. So I looked at the column and manually tried to use the which() command, and

Hi everybody, I'm trying to create a numerical data frame on which to perform PRCC. So far I have created a data frame that consists of function/vector output that displays in numerical form, but when I try and run PRCC (from epiR package) I get the following error message: "Error in solve.default(C) : Lapack routine dgesv: system is exactly singular" It appears this is because

Hello everybody, I have stumbled upon a test case (the attached module is a slightly reduced version) that shows extremely reduced performance on linux compared to windows when executed using LLVM's JIT. We narrowed the problem down to the actual code being generated, the source IR on both systems is the same. Try compiling the attached module: llc -O3 -filetype=asm -o BAD.s BAD.ll Under

Hi everyone, I have a simple problem but don´t know how to solve it. I read in a table from a text file that looks like that: -3,932200E-01 -2,000000E-01 4,999995E-02 -3,932099E-01 -1,000000E-01 3,999996E-02 -3,932000E-01 0,000000E+00 3,999996E-02 -3,931899E-01 -1,000000E-01 4,499996E-02 -3,931800E-01 -1,000000E-01 4,499996E-02 -3,931699E-01

> I may be missing something obvious, but what is `vector` defined as here? Can you provide a buildable example? Sorry, I should provide a cross-platform version using vector extension of frontend :) `vector int` is a vector extension on PowerPC, which is enabled if you set target to PowerPC platforms. Example below should be successfully compiled in any platform: typedef float v4sf

Hi, I'm having trouble with the "which" or the "seq" function, I'm not sure. Here's an example : > lat=seq(1,2,by=0.1) > lat [1] 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 > which(lat==1) [1] 1 > which(lat==1.1) [1] 2 > which(lat==1.2) [1] 3 > which(lat==1.3) [1] 4 > which(lat==1.4) [1] 5 > which(lat==1.5) [1] 6 >

Dear all, I just noticed that the 0.9 update for FrF2 did not work out for Mac OS due to an error in an example that ran without error on all other platforms. I do not find any reason for this. In the past, umlauts or tab characters have sometimes been an issue, but I didn't find any of these. The function definition is FrF2(nruns = NULL, nfactors = NULL, factor.names = if

Canonicalizing to a masked store intrinsic is possible, but we might have to expand back to the load/shuffle/store sequence for targets that don't support masked store. And then you'd likely have to do the store splitting that I think is being requested for the original pattern anyway. But I'd like to step back to the premise - "LLVM seems to always generate vector instructions

Are you able to send any IR for others to reproduce this issue? On Wed, Jul 17, 2013 at 11:23 PM, Peter Newman <peter at uformia.com> wrote: > Unfortunately, this doesn't appear to be the bug I'm hitting. I applied > the fix to my source and it didn't make a difference. > > Also further testing found me getting the same behavior with other SIMD > instructions.

If you enter the following values for x and y: x: 2.2 3.7 2.1 0.4 2.8 0.3 0.4 1.4 5.4 6.0 y: 6.0 8.1 1.8 1.3 5.2 0.6 1.0 1.9 6.8 6.5 and do rank(abs(y-x)), you should get two ties, one at 0.3 and one at 0.5. R, and S-Plus5 by that matter recognise the tie at 0.5 and give it rank 3.5, but gives one of the two 0.3 values rank 1 and one of them 2, whereas they should boh be 1.5. Any suggestions? when

Hi, I have a following vector: > smallch [1] 0.0652840 0.1181300 0.0319370 0.0155700 0.0464110 0.0107850 [7] 0.0158970 0.0375900 0.0603090 0.0310300 0.0105920 0.0540580 [13] -0.0177740 0.0039393 Pretty (R 1.5.1) has problems with zero: > pretty(smallch) [1] -2.000000e-02 -3.469447e-18 2.000000e-02 4.000000e-02 6.000000e-02 [6] 8.000000e-02 1.000000e-01 1.200000e-01