How to find from what row an outprint comes from

Question

Fredrik 2011-11-11

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Hi Everyone. For some reason i get a very large "data print" in the command window when i import data with my import file. For what I can see, I have put ; in the end of every row which I thought would terminate all kinds of outputs.

Now I wonder if there is any command that can look from which row in my m file this data print comes from? Thank you! Fredrik Lindelöw

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Answer 1

Fangjun Jiang 2011-11-11

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在 MATLAB Online 中打开

The "data print" might be generated by fprintf() though.

Anyway, you can turn on echo and then run the code. It will interlace your code and the output. Then you can find it out.

echo on;

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Jan 2011-11-11

+1: After all these years I learn a situation when ECHO is useful. Thanks.

Fangjun Jiang 2011-11-11

For this question, I though about echo() right away. But in this similar previous question, it took me a while to thought about it.

http://www.mathworks.com/matlabcentral/answers/17651-why-do-i-get-ans-1-in-the-command-window

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Answer 2

Jan 2011-11-11

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You can use the debugger also: Set a breakpoint in the code and step through the program line by line until the output appears.

There might be a disp or display, an unterminated line in a subfunction, or a comma after a command e.g. when twi commands are written to a single line.