Hi all. I have a data set, with 3 variables ID Diet Day 1 0 0 1 0 2 1 1 3 2 1 1 3 0 1 4 1 0 5 0 2 5 2 2 My diet variable means a person (ID) could have had Diet 1 on a given day, but also a mix of 1 and 2 (i.e. 2) on a given day. I have generated a heatmap to visualise this, but as you can see the day variable is different for all IDs. Some IDs have observations for day 0 and some only for day 2. So when I generate my heatmap (proc sgplot with the heatmap and coulourgroup=), I see the white gaps inbetween. I am looking for a way in which I can assign a colour to those white spaces inbetween the tiles in SAS. For example I was ro assigna colour to a white space in which ID 5 has not data for day 0. I could appreciate any help
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