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Hi there, Sorry for the repeated msgs. I set my option to "receive my own email", but it didn't seem to work. So, I didn't realize my previous posts actually got through. Le - ~~~~~~~~~~~~~~~~~~~~~~~ Le Wang, Ph.D Population...

Hi there, Thanks for your time in advance. I am using an add-on package from Cran. After I updated this package, some of my programs don't work any more. I was wondering if there is anything like version...

Hi there, Thanks for your time in advance. I am using an add-on package from Cran. After I updated this package, some of my programs don't work any more. I was wondering if there is anything like version...

Hi there, I have a question regarding the "plot" command after estimation. Specifically, I estimate a model, say regressing y on x and z. And after estimation, I would like to plot the fitted values against x, but I don...

Hi there, Thanks for your time in advance. I am trying to read in multiple files. For example, data.1940 <- read.table("c:/data/1940.csv",header=TRUE,sep=",") data.1950 <- read.table("c:/data/1950.csv",header=TRUE,sep...

Thank you all for the help! Le On Sat, Mar 21, 2009 at 4:23 PM, Pankaj Chopra <pchopra at ncsu.edu> wrote: > data.year[j] <- > read.table(paste("c:/data/",year[j],".csv",sep=''),header=T,sep=",") > > > should do...

Thanks, David. I did try to use predict() to obtain the graph, but it somehow looks different from the one generated by "plot" command. So, I was wondering if there is any way that I can get the one generated...

Duncan Murdoch, Many thank you for your reply. I did try to download the older versions from CRAN. But I am not quite sure how to compile the source form. I tried using the option "install package(s) from local...

A follow-up. Thanks to Matthias, the codes worked very well. Le > On 11/18/06, Matthias Kohl <Matthias.Kohl at stamats.de> wrote: > > Hello, > > > > your integrand needs to be a function which accepts a numeric vector as > > first argument...

Hi there. Thanks for your time in advance. My final goal is to calculate 1/2*integral of (f1(x)^1/2-f2(x)^(1/2))^2dx (Latex codes: $\frac{1}{2}\int^{{\infty}}_{\infty} (\sqrt{f_1(x)}-\sqrt...

Hi there. Thanks for your time in advance. My final goal is to calculate 1/2*integral of (f1(x)^1/2-f2(x)^(1/2))^2dx (Latex codes: $\frac{1}{2}\int^{{\infty}}_{\infty} (\sqrt{f_1(x)}-\sqrt...

Hi there. Thanks for your time in advance. I am using R 2.2.0 and OS: Windows XP. My final goal is to calculate 1/2*integral of (f1(x)^1/2-f2(x)^(1/2))^2dx (Latex codes...