Consecutive application of train() hangs

[dilabbiog]

Consecutive application of train() hangs

[dilabbiog]

May also be a memory issue. For example, the following works:
load('badtrain.mat');
tic; trn1 = train(b); toc;
clear all;
load('badtrain.mat');
tic; trn2 = train(b); toc;

[jeanluct]

I checked that this bug is also present on Linux with CLang and GCC compilers. Interesting! I wonder what persists between calls. I would have thought that even any global variables used by trains would be reset. Not totally clear if this is a trains or a Matlab issue.

[jeanluct]

I pushed a proposed fix to the develop branch. It's because of the crazy, surprising fact that Matlab remembers globals in a C++ file. Hence, the braid you were trying was decreasing tolerance, then the next function call started with a tolerance that was too low. Or something. But basically you're dealing with braids that are close to causing trains to hang.