similar to: What solve() does?

Displaying 20 results from an estimated 3000 matches similar to: "What solve() does?"

2012 Apr 18
3
Installing texlive dependencies
Hello ALL! I am running Fedora 16 x86_64. Due to some dubious problems, that i couldn't resolve, with the TeXLive (2007, which is a default), I removed it. That removed R as well, and some other dependent packages. Then, I installed TeXLive 2011 from CTAN. However, when I wanted to install R, from Fedora's repositories, it asks for some TeX dependencies (for example, tex-preview,
2007 Mar 21
2
Detailed legend in mathplot ...
Hello, Recently, I have asked for a help with building graphs, and I got few great advices. Now, my appetite is growing :) and I wander how to add legend for two (or more) lines in following example: matplot(DAT[, c(3,4)], type="b", ylim=c(0,8), xaxt="n", yaxt="n", + pch=c(21,22), col="black", lty=c("dashed","solid"), xlab="",
2009 Sep 15
5
Very general question about Debian...
Hello ALL! First, I apologize for sending question that spill-out from the scope of this list. However, you might be essentially the best informants. In brief, I am thinking to give second shot to the Debian. Currently I am using Ubuntu 9.04, but Debian still teases me, so to say. I used to use Debian testing (Lenny at that time), but when Lenny became stable, things became very shaky in
2012 Aug 30
2
Which BUGS should one use?
Hello ALL! Some times ago I started to learn and play with Bayesian stuffs. Many advice use of WinBUGS for Bayesian inference Using Gibbs Sampler. However, WinBUGS is discontinued, and now, development is under OpenBUGS. I wasn't lazy, so I installed both and tried out. In more than 90% of cases they give comparable outcome. But in few cases I got substantial differences. Recently, I read nice
2009 Mar 18
2
Updated R on Debian testing machine...
Hello! I recently switched to Debian testing OS and explanation at the: http://cran.at.r-project.org/bin/linux/debian/ is a little bit fuzzy. Can anyone give step-by-step how-to have updated R on Debian testing and/or unstable. Thanks in advance! PM
2010 May 16
4
R GUI ???
Hello ! I am really happy to find this list. I am not new to R but to Debian or Linux in general. Up to now I used R on MS Windows but now I want to use R on Debian lenny. I have absolutely no experience with Debian. I was able to install R 2.11 on my system using the instruction in the readme on CRAN. I can open R in the shell. On windows I used R with the R GUI or with Tinn-R. Is there the
2009 Sep 17
2
QQ plotting of various distributions...
Hello! I am trying with this question again: I would like to test few distributional assumptions for some behavioral response data. There are few theories about true distribution of those data, like: normal, lognormal, gamma, ex-Gaussian (exponential-Gaussian), Wald (inverse Gaussian) etc. The best way would be via qq-plot, to show to students differences. First two are trivial: qqnorm(dat$X)
2011 Jun 03
2
Checking and building package
Hello! I am truing to compile an R-package having c-code. I put foo.c in src/ folder and useDynLib("foo") in NAMESPACE file. When trying R CMD check, I got an error message that shared object 'foo' is not found. Then I did R CMD SHLIB foo.c first. However, after that, I got warnings from R CMD check that there is an object file in /src folder. Even worse is if I run R CMD
2007 Feb 24
1
Making two lines graph ...
Hello! Can anyone help me to build a graph with the alphanumeric values on x-axis, with two lines (preferably doted and solid, or similar) that present values on y-axes. In a toy example, data frame could be like this: x.orig x.num y1 y2 a 1 0.2 0.4 b 2 0.1 0.1 c 3 0.3 0.3 d 4 0.3 0.15 e 5 0.1 0.05 I can make graph only if I use values converted to numeric in "x.num", but not original
2006 Feb 23
2
Strange p-level for the fixed effect with lme function
Hello, I ran two lme analyses and got expected results. However, I saw something suspicious regarding p-level for fixed effect. Models are the same, only experimental designs differ and, of course, subjects. I am aware that I could done nesting Subjects within Experiments, but it is expected to have much slower RT (reaction time) in the second experiment, since the task is more complex, so it
2009 Mar 19
1
Installing R on Debian testing...
Hello! I have posted this question at the R-HELP, general. I recently switched to Debian testing OS and explanation at the: http://cran.at.r-project.org/bin/linux/debian/ is a little bit fuzzy. Can anyone give step-by-step how-to have updated R on Debian testing and/or unstable. First, what line should be in /etc/apt/source.list? Second, how to "approach" to unstable versions? Thanks
2009 May 12
1
Plugins for R and more...
Hello! I saw this discussion regarding vim plugin for R and just wonder if there exists something similar for Gedit. I use Debian and I really like Gedit. I know a lot of plugins but not for R. Another thing is a bit stupid cause I know there has been discussion about repositories for R. I recently converted a friend from Windows to Debian and he is confused should he use: deb
2007 Dec 26
1
Removing duplicate packages...
Hello! I am using R version 2.6.1, under Ubuntu 6.06 (Dapper Drake). Recently I have realized that I have, in some cases, two or even three instances of the same package; for example: cluster, foreign etc. Typically, two instances occur in one of the three location: "/usr/local/lib/R/site-library", "/usr/lib/R/site-library", or "/usr/lib/R/library", and the third
2011 Oct 20
1
Are they fully identical: WinBUGS and OpenBUGS; R2WinBUGS and R2OpenBUGS
Hello ALL! I am running Linux, Fedora 15 64-bits, and R on it. I need to use WinBUGS and R2WinBUGS, but as far as I read, WinBUGS is closed project, to be continued with/as OpenBUGS. Thus, I have found R2OpenBUGS on OpenBUGS Contributed Code (http://openbugs.info/w/UserContributedCode), not on CRAN. Author(s) states that it is equivalent for R2WinBUGS. I tried briefly, and realized few minor
2005 Dec 21
2
Why lmer() is not working, altough lme4 is installed?
I have installed lme4 library, but when I try something with lmer() function, I receive error message. On the other hand, I can use lme() function from the same library. Are those two the very same function or not? I am a bit confused. I am using: $platform: "i386-pc-linux-gnu" $arch: "i386" $os: "linux-gnu" $system: "i386, linux-gnu" $major: "2"
2009 May 16
4
rgl install failed...
Hello! Interesting thing is that I cannot install rgl. It reports: checking for X... no configure: error: X11 not found but required, configure aborted. ERROR: configuration failed for package ?rgl? * Removing ?/usr/local/lib/R/site-library/rgl? I am pretty sure that my X11 is fine. Does anyone know why I got this error message? Best, PM
2009 Sep 04
3
Applying qqmath using gamma distribution...
Hello ALL! Can anyone tell me how to specify qqmath() function with distribution qgamma? In help it is bit vague how to pass shape and scale parameters for gamma. Thank you in advance. Best, PM
2005 Nov 30
1
How to solve allocation problem in lme() analysis?
Hello! I am running analysis on the data from 4 experiments, with approximately 4600 rows (cases). My working model is: fitA1 = lme(RT~F1+F2+L,random=~1|Experiment/Subject,data=data) Model works very fine, but if I try to check whether the effect of L depends on Experiments/Subjects with: fitA2 = lme(RT~F1+F2+L,random=~1+L|Experiment/Subject,data=data) [with the idea to make: anova(fitA1,fitA2)]
2009 Sep 08
2
Very basic question regarding plot.Design...
Hello ALL! I have a problem to plot factor (lets say gender) as a line, or at least both line and point, from ols model: ols1 <- ols(Y ~ gender, data=dat, x=T, y=T) plot(ols1, gender=NA, xlab="gender", ylab="Y", ylim=c(5,30), conf.int=FALSE) If I convert gender into discrete numeric predictor, and use forceLines=TRUE, plot is not nice and true, since it shows values
2007 Jan 25
2
Unable to install gtkDevice ...
Hello! I am trying to install gtkDevice package, but without success. It is complaining about: * Installing *source* package 'gtkDevice' ... checking for gtk-config... no checking for gtk12-config... no ERROR: Cannot find gtk-config. I am using Ubuntu 6.06, and I cannot find that package in the repositories. Is there a remedy of any kind? What can I do? Best, Petar M.