save RandomForest B and use -v7.3 switch

Question

YOGESH 2011-12-22

回答： sinlin ray 2016-2-16

Hello I have a code of feature selection (backward) and I use Random Forest. I have matlab 7.12.0(R2011a) and I run the code parallel using 8 CPUs.

B = TreeBagger(100, predictors, target);

Then I get B, MSE and ntrees. next, I predict as

Ymodel = oobPredict(B);

and the save as

savepath = ('/Net/myname/');
sp = [savepath 'MSE_Ymodel_B.mat'];
save(sp, 'Ymodel, 'MSE', 'ntrees','B');

But after the job is finished successfuly, I get a warning messege and only 'B' is not being saved. The messege I received is

{Warning: Variable 'B' cannot be saved to a MAT-file whose version is older than 7.3. To save this variable, use the -v7.3 switch. Skipping...}

Can anybody tell me how to use -v7.3 switch?

cheers, Yogesh

Answer 1

sinlin ray 2016-2-16

you just need change the saving preference. preference—matlab-general-matfiles