topic Re: Adding missing values in the legend when using heatmap in Graphics Programming

Adding missing values in the legend when using heatmap

Ceciestunnomtemporaire — Wed, 10 Aug 2016 19:34:17 GMT

Hi,

I am using the Template and the Sgrender procedures to create a heatmap graphic. I have some missing values in my data, and I use the white color to see them. I would like to add this color next to the heatmap legend so other people would know that white=missing, but I did not find a way to do this.

If anyone has an idea, I would really appreciate it.

Thanks!

Re: Adding missing values in the legend when using heatmap

Rick_SAS — Thu, 11 Aug 2016 13:56:54 GMT

I haven't done this myself, but look at the LEGENDITEM statement. The example at the end looks like you ought to be able to do something like this (untested):

legenditem type=marker name="missingVal" / markerattrs=(color=white symbol=squarefilled size=14)

label="Missing Value";

Then use a DISCRETELEGEND statement inside the LAYOUT OVERLAY to place the missing value swatch where you want it.

Of course, the simpler way is to use TITLE2 or FOOTNOTE 🙂

footnote "The color white represents a missing value";

Re: Adding missing values in the legend when using heatmap

Ceciestunnomtemporaire — Thu, 11 Aug 2016 13:52:02 GMT

Yes it's working fine. I just had to add a slash before "markerattrs".

Thanks and have a great day !

Re: Adding missing values in the legend when using heatmap

Rick_SAS — Thu, 11 Aug 2016 13:57:47 GMT

Ah, yes. Sorry. I editted my response to fix that error, in case someone else searches for your question and finds this page.