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pengy at morgan:~/projects/APP_Hippo_Exon_Jankowsky/analysis/pvalue_contrast_table.RData

I don't find a good explanation on polynomial contrasts. Could somebody recommend one to me?

Hi, commandArgs gives me the arguments. I am wondering what command can give the whole command line. Regards, Peng

I can not get the string '\'. Could somebody let me know how to get it? > print('\') + + > print('\\') [1] "\\"

I only see how to assign values to colnames() in help. Is there a way to remove colnames? colnames(x) <- value

The help page of aov() mentions lme(). Does it refer to lme() in package nlme?

I don't find a function to print a string to file. Would somebody let me know what function I should use?

Hi, I was told to use "<-" instead of "=" in the mailing list. I am wondering what the difference between them? Regards, Peng

Hi, Besides calling shell command mkdir by system(), I'm wondering if there is a buildin command in R to make a new directory. Regards, Peng

read.delim gives me a data.frame. Is there a function that can return the result in a matrix rather than data.frame?

There are documents for naming conventions for other languages. I'm wondering if there is a document that clearly describes the recommended naming convention for R.

The external grep program has an option -v to select non-matching lines. I'm wondering if how to exclude certain patterns in grep() in R?

I want to understand ANOVA better. But a few textbook that I have do not describe Cochran's Theorem in details. Could somebody recommend a book for me?

?hclust listed several references. I'm wondering what is the best resource that explained clustering algorithms, dendrogram and various clustering algorithms that are implemented in R. Thank you!

I don't see an option to tune linewdith in heatmap.2(). Could somebody let me know how to tune the dendrogram line width?

I'm interested in parsing an html page. I should use XML, right? Could you somebody show me some example code? Is there a tutorial for this package?

Hi, I did a search but I was able to find how to generate a random matrix. Can somebody let me know how to do it? Regards, Peng

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Hi, oneiric was available before. But it disappears now. Could it be added back to the repository? Thanks. http://cran.r-project.org/bin/linux/ubuntu/ -- Regards, Peng

Hi, I'm wondering if R provide a vi mode in the command line just like other shells such as bash do. Can somebody let me know? Regards, Peng