Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives.

I talked in the post Abuse of Vector in R that it is often the case that we want keep the matrix sturcture when extracting a row …

Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives.

Being flexible is a two-side sword to R. While it make it convenient and productive to use R, it is also very easy to make mistakes when …

Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives.

1. Unlike C/C++, Java and SAS, you do not have semicolon to indicate the end of a command, but you can do this if you like. It …

Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives.

Submit using web form or using ftp following the steps below.

1. Upload the .tar.gz file using anonymous as log-in name and your e-mail address as password …

Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives.

Rstudio is the best cross-platform IDE for R so far. It is a lot like the IDE of MATLAB. Once I came across the problem that Rstudio …

Things under legendu.net/outdated are outdated technologies that the author does not plan to update any more. Please look for better alternatives.

1. The function as.Date and strptime convert string to dates. For these functions to work right, you must use the right format.