There are probably multiple ways to do this. sftools makes this very easy. From the command line type sftools read input.mtz calc col 6 = 0.9 write output.mtz stop Just change the file names, column number and the fixed value to whatever you need. Bart On 10-06-21 03:23 PM, Hailiang Zhang wrote: > Hi there: > > Is there any easy to convert a colume in mtz file (say fom) into a fixed > value? I tried to convert to ascii first, but mtz2various only takes 1 > single FP colume (unfortunately I have 2). Thanks! > > Hailiang > > -- =========================================================================== Bart Hazes (Associate Professor) Dept. of Medical Microbiology& Immunology University of Alberta 1-15 Medical Sciences Building Edmonton, Alberta Canada, T6G 2H7 phone: 1-780-492-0042 fax: 1-780-492-7521 ===========================================================================