WBZH的专栏

Install R-Base重要website:www.r-project.org www.rstudio.comYou can find R-Base in the Software Center; this would be the easy way to do it. However, the Software Center versions are often out of date, w

3D Surface PlotsR语言能否画三维图？ http://www.zhihu.com/question/26863301 plotting 3D data in R http://stackoverflow.com/questions/6720526/plotting-3d-data-in-r3D Plots in R http://blog.revolutionanalytics.co

R语言数字转字符串：自动补0在批量读取文件的过程中，可能会遇到形如： 001.dat 002.dat … 999.dat 如果使用 for 循环语句，循环变量为整型时，则需要将整形转换为字符串格式，并同时补齐0，以作为读取文件名。for (i in 1:999) { idx = sprintf("%07d", i) file_name <- paste(idx, ".dat