Disqus is blocked

I was wandering why the disqus comment panel in Map-TCM was vanished. It turned out to be blocked by our great fire wall of China. Hopefully it can be used again, because it’s really convinient, not only for my own site, but also for viewing the comment of other people’s... [Read More]

Find a bug in R

One of the most headache problems in R (maybe in all programming) is the Encoding issues in the windows platform. Even the veterans in the R-Core team can’t survive. [Read More]