splitapply does not retain ME stack

26 次查看（过去 30 天）
Vasco
Vasco 2026-1-15，11:02
评论： Matt J 2026-1-15，13:33
When the function that splitapply throws an error, this line number of this error is not include in the output (matlab2024b)
Example:
T=table([1:3]');
G=findgroups(T);
splitapply(@fun, T, G);
function out = fun(varargin)
ERROR
end
This returns:
Error using splitapply>localsplitandapply (line 196)
Unable to apply the function 'fun' to the 1st group of data.
Error in splitapply (line 135)
varargout = localsplitandapply(fun,dataVars,gdiffed,sgnums,gdim,nargout);
Error in templateLoopOverAll (line 231)
splitapply(@fun, T, G);
Caused by:
Unrecognized function or variable 'ERROR'.
I was expeting that the line number that actually caused that error would be included:
Error in testfile>fun (line 5)
ERROR
Error in testfile (line 3)
fun()
Missing this information makes the debugging of fun very challenging.
How to retrieve this line number?

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回答（1 个）

Matt J
Matt J about 9 hours 前
编辑：Matt J about 9 hours 前
Run with Pause on Errors.
Then the code will stop at the offending line:
  1 个评论
Matt J
Matt J about 9 hours 前
Youc an also invoke Pause on Errors from the command line with,
>> dbstop if error

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