Integer axis

[hanh nguyen <nguyen@xxxxxxxxxx>]

Title: Integer axis

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Hi ferreters

I want to define axis as integer vary from 1 to 15 like that:
Def axis/x=1:15:1 xax
Def grid/x=xax gr1
File/var=mydata/gr=gr1 “data”

when I plot mydata, xax is real i.e. 1.0.....15.0 
Do you know what can I do to have integer instead of real values? 

Thanks in advance for any help
Hanh