Dear Rusers, when i try file.show(" xxx.h") in Rstudio which using R3.0.2, it doesn't show anything. But when i use file.edit("xxx.h"),it shows the right file, It is the same thing happen to xxx.c file. May you explain it to me? -- PO SU mail: desolator88 at 163.com Majored in Statistics from SJTU [[alternative HTML version deleted]]