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By default, numeric axis labels are formatted with the normal APL format primitive. You can either format these yourself and pass them as text to
ch.Set 'XLabs' or it may be more convenient to have RainPro format them for you. The easy way is to use the appropriate picture format for the axis in question, but there may be the occasional need for more complex format strings. In this case you pass any valid
FMT string here, and the numbers will be formatted appropriately. This applies across all axes and the value-tags for xy plots and piecharts.
ch.Set 'QFmt' 'F8.2'
Please note that no error trapping is done here, so invalid format strings will cause DOMAIN ERRORs in the RainPro function which attempts to apply them.
See also ...
XFormat X-axis format-picture
YFormat Y-axis format-picture
ZFormat Z-axis format