Can I reorder the legend entries for gscatter

I am making a gscatter plot where the groups are depths. I want the depths to be in order from shallowest to deepest in the legend (in this case = S, 1T, 10B, 4B, 1B). Can I control that somehow? Right now the legend is just the default.

f2=figure(2)
gscatter(TA_est,TA_meas,strtrim(height))
hold on; 
plot(alk,alk)
xlabel('LIAR TA','fontsize',16)
ylabel('Measured TA','fontsize',16)

Answer 1

[dpb]

Yeah, just redo the legend manually with the handles in the desired ordered...

...
hGS=gscatter(TA_est,TA_meas,strtrim(height));       % save the GS line handles array
hLG=legend([hGS(...)],' S', '1T', '10B', '4B', '1B');

where [hGS(...)] represents the handles to the array of lines in the order of depth desired associated with the original order. You don't give the data so can't actually determine what that order would be.

[Heidi Hirsh]

So do I need to define each handle separately for each group? I am unsure what goes where you have ... in hGS(...)

[dpb]

hGS is the array of handles from gscatter; you just need a subscripting vector in the desired order you want the legends drawn as the argument to it to legend. I wasn't sure what that order is but if you have a desired order you've listed above so whatever order that is is the order of that indexing vector...

  ...
hGS=gscatter(TA_est,TA_meas,strtrim(height));       % save the GS line handles array
idxOrderWanted=[1 5 3 2 4];                     % or whatever should be...
hLG=legend([hGS(idxOrderWanted)],' S', '1T', '10B', '4B', '1B');

that matches up with the title strings you want associated with each

[Heidi Hirsh]

Thank you so much! So if my current order is:

hGS = 
  5×1 Line array:
  Line    ( S)
  Line    (4B)
  Line    (10B)
  Line    (1B)
  Line    (1T)

Then I would say

  idxOrderWanted = [1 5 3 2 4]; % to get the order to be S, 1T, 10B, 4B, 1B

[dpb]

Did you try it? <VBG>

Looks like...

[Heidi Hirsh]

So I did this:

hGS=gscatter(TA_est,TA_meas,strtrim(height));     
idxOrderWanted = [1 5 3 2 4]
hLG=legend([hGS(idxOrderWanted)],'S', '1T', '10B', '4B', '1B');

BUT when I replotted the figure it looks like the data is now mislabeled. The points are all the same but the colors now match different IDs...