tiff图错误

chenlijuan

各位我想问大学下：
  为什么我画tif格式的图老会出现下面的错误，请教各位：
Error in tiff(filename = "pep_ionscore.tif", width = 25, height = 18,  :
  unable to start tiff() device
In addition: Warning messages:
1: In tiff(filename = "pep_ionscore.tif", width = 25, height = 18,  :
  unable to allocate bitmap
2: In tiff(filename = "pep_ionscore.tif", width = 25, height = 18,  :
  opening device failed