ColorScale Precision Adjustment
mwpro
I was trying to use the colorscale redwhiteblue to indicate Pearson coefficient from -1 to 1. However cannot get the white to spot onto 0, purpose was to show positive values in red and negative values in blue. Any help?
Greatly appreciated!
When you set the colorscale, are you specifying min and max to be -1 and 1? The default is to use the min and max of the wave and this might cause 0 to not be pure white if your min and max are inside of -1 to 1.
June 3, 2018 at 12:29 pm - Permalink
yes , I did specify the min and max to be -1 and 1, and still 0 is not pure white, a little puzzled...
June 3, 2018 at 03:02 pm - Permalink
Could you post a minimal example and a screenshot?
HJ
June 3, 2018 at 11:31 pm - Permalink
•setscale x, -1,1, "", test
•test=x
•newimage test
•ModifyImage test ctab= {-1,1,RedWhiteBlue,0}
gives a pure white around 0. (Pipette tool unfortunately not visible in the screen shot.)
HJ
June 4, 2018 at 05:32 am - Permalink