Can I use splitapply with two grouping variables and how can it be done in matlab app designer?

Hi ! :)

I am referring to this example:

load carsmall
whos             

  Name                Size            Bytes  Class             Attributes

  Acceleration      100x1               800  double                      
  Cylinders         100x1               800  double                      
  Displacement      100x1               800  double                      
  Horsepower        100x1               800  double                      
  MPG               100x1               800  double                      
  Mfg               100x13             2600  char                        
  Model             100x33             6600  char                        
  Model_Year        100x1               800  double                      
  Origin            100x7              1400  char                        
  Weight            100x1               800  double                      
  ans                 1x1                 8  double                      
  cmdout              1x33               66  char                        
  gdsCacheDir         1x14               28  char                        
  gdsCacheFlag        1x1                 8  double                      
  i                   0x0                 0  double                      
  managers            1x0                 0  cell                        
  managersMap         0x1                 8  containers.Map              

[g,id]=findgroups(Model_Year);
hAx=axes; hold(hAx,'on')
splitapply(@(x,y)scatter(x,y,'filled'),Displacement,Horsepower,g)
legend(hAx,"Model Year "+string(1900+id),'location','northwest')
xlabel('Displacement'), ylabel('Horsepower')

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I have a table which is heterogenous. And I want to show the names of the first preferred salt user has chosen and second preferred salt (these are two of the column in my table) along with their properties on the x and y axis. Their properties are also the different columns in my table

Answer 1

[Cris LaPierre]

Yes, you can use two grouping variables. However, the output is still an Nx1 vector of the unique groups (combination of the grouping variables).

load carsmall
             
[g,id1,id2]=findgroups(Model_Year,Cylinders);
hAx=axes; hold(hAx,'on')
splitapply(@(x,y)scatter(x,y,'filled'),Displacement,Horsepower,g)
legend(hAx,string(1900+id1) + ", "+string(id2) +" #Cyl",'location','northwest')
xlabel('Displacement'), ylabel('Horsepower')

The code should work in app designer. Just update your target axes to be app.UIAxes (or whatever you named your axes component).

[Cris LaPierre]

Here's a quick example.