search for: tkobaya

Hi, I am trying to install RSQLite package on my Fedora workstation. I tried to install other packages as well, but each time I got the same error messages saying "compilation error" and "non zero exit status". Do I have to specify "lib="? I never specified the library path before when I was using Fedora Core 6. Warning in install.packages("RSQLite")

Hi RUsers, I am wonder if I can search observations whose IDs matches any of the values in another vector, such as in MySQL. While I am learing MySQL for future database management, I appreciate if anyone could give me a hint. Suppose I have one 5*1 vector containing observation IDs and frequencies, and one 3*1 vector containing observation IDs. observation<-c(1,2,3,4,5) ID<-c(1,3,4)

Dear R-users, I have encountered the following problem every now and then. But I was dealing with a very small dataset before, so it wasn't a problem (I just edited the dataset in Openoffice speadsheet). This time I have to deal with many large datasets containing commuting flow data. I appreciate if anyone could give me a hint or clue to get out of this problem. I have a .dat file

Hi, Let me apologize for this simple question. I use 64 bit R on my Fedora Core 6 Linux workstation. A 64 bit R has saved a lot of time. I am sure this is a lot to do with my memory limit, but I cannot import 4.8GB. My workstation has a 8GB RAM, Athlon X2 5600, and 1200W PSU. This PC configuration is the best I could get. I know a bit of C and Perl. Should I use C or Perl to manage this

Hi, Could someone explain what this message mean? I was playing with lme4 pacakge but I could not run any models... Error in printMer(object) : no slot of name "dims" for this object of class "table" In addition: Warning message: In printMer(object) : trying to get slot "dims" from an object (class "table") that is not an S4 object

Hi, This is a very fundamental question. I want to export graphical results so that I can place them in an openoffice document. I use Fedora 5. Can anyone help? Thanks in advance. ------------------------------------ Takatsugu Kobayashi PhD Student Indiana University, Dept. Geography

Rusers, I am trying to append multiple .csv files of different dimensions (but # of columns are the same for all .csv files). I do have .csv files whose names are CA1.csv ~ CA100.csv. CA means california and 1 means the first file. So what I have been doing (after googling how to append by row multiple files) was: cleanup_data<-function(state,count) { out<-matrix() for (i in 1:

Hi, I use Redhat Linux for R. Now I am trying to use the rJava library. I downloaded JRE beta 2 from Sun. I typed root@~]# R CMD javareconf Java interpreter : /usr/bin/java Java version : 1.6.0-beta2 Java home path : /usr/java/jre1.6.0 Java library path: $(JAVA_HOME)/lib/amd64/server:$(JAVA_HOME)/lib/amd64:$(JAVA_HOME)/../lib/amd64::/usr/java/packages/lib/amd64:/lib:/usr/lib JNI linker

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Hi I bought a new laptop HP dv9500 just a week ago and installed a Ubuntu gutsy ribbon on this laptop. I wanted to install Fedora but there are more threads on Ubuntu, so I decided to install Ubuntu. After hours of struggle in configuring x server/graphic card stuff, I installed R for Gutsy ribbon using "sudo apt-get install g77 r-core'. Now when I tried to install 'sp' package

Rusers: I am trying to apply a quadratic discriminant function to find the best classification outcomes. 1 is assigned to the values greater than a threshold value; and 0 otherwise. I would like to see how the apparent error rates and the optimal error rate change with increasing threshold values. I have a 1000*10 data matrix: n=1000 and p=10. Here is what I wrote so far, but seems to be

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