Hi,
As I tried to understand the example line by line, I am stuck at below:
numBranches = @(x)sum(x.IsBranch);
mdlDefaultNumSplits = cellfun(numBranches, MdlDefault.Trained);
To my understanding, MdlDefault.Trained is a 10x1 cell (10-fold). Shown below.
Each cell is an independent regression tree containing all the properties shown below.
from the above two lines of codes, function @(x)sum(x.IsBranch) has an x in the function, to my understanding here x is MdlDefault.Trained. However, MdlDefault.Trained has so many properties. This function would look like:
(MdlDefault.Trained)sum(MdlDefault.Trained.IsBranch).
What does above line mean? I feel it is difficult to understand.
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