Suppress unexpected output to command window

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In my class constructor I have the following lines:
* some code with inputparser to produce inp
obj.scal = inp.scal;
obj.matrix = inp.scal*matrix; % HERE obj is being printed for some reason
* some code to set other obj properties
Somehow, the object contents are printed to the command window after the second command (it assigns a matrix to the obj.matrix property). The class is a normal "data" class. I'm using Matlab R2015b. I've tried echo off, but it doesn't help. The problem is minor yet annoying.

Accepted Answer

Steven Lord
Steven Lord on 24 May 2016
Are those the only two lines in the constructor?
How are you calling the constructor? Are you calling it like this?
obj = myObjectConstructor()
If so, try adding a semicolon after the constructor call.
obj = myObjectConstructor();
Ilya Tyuryukanov
Ilya Tyuryukanov on 25 May 2016
Edited: Ilya Tyuryukanov on 25 May 2016
I've found the "bug". There was a missing semicolon in the set.matrix(obj, matrix ) method, i.e. the line
obj.matrix = matrix
was without semicolon. I've overlooked that obj.matrix is not assigned directly, but via its setter method (with some checks). However, nice to know that I may trust Matlab, i.e. there was no internal bug with these newly introduced objects.

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