How to stop message in command window

2012 11 26
3 个回答
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更新时间：2016 5 29
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0 个投票

Hi
When I use lsqcurvefit function I get the following msg in command window. Since in my program no. of iteration is so high that, I believe it eats up huge chunk of memory. Can i stop this msg to display??
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>>[x,resnorm] = lsqcurvefit(@myfun,x0,xdata,ydata);
Local minimum possible.
lsqcurvefit stopped because the final change in the sum of squares relative to its initial value is less than the default value of the function tolerance.
criteria details
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strunack
strunack 2012-12-6

0 个投票

Hi, finally I could able to find a solution myself.
I used optimset to set the value of display to OFF then passed the options to lsqcurvefit. Did the job. It switch off the repeitative display and in the command window I used it to display more important msg like percentage of completion, points where function deviate from my set limit etc.
options = optimset('Display','off');
[x,resnorm] = lsqcurvefit(@myfun,x0,xdata,ydata,[],[],options);
thank you for showing interest in my question

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Yi Zhang
Yi Zhang 2013-1-4
nice! I also got annoyed by the same mesage.
Mr M.
Mr M. 2016-5-29
this is not working for me!
Walter Roberson
Walter Roberson 2016-5-29
Mr M., please show your code. Also, please indicate which MATLAB release you are using.

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更多回答（2 个）

strunack
strunack 2012-11-28

0 个投票

Hello, any answer to my above question. I tried a lot to put parameter as display off, but not working.
tks

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Jan
Jan 2012-11-28
Please post comments to your answer in the comment section, because this is not an answer.

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Jan
Jan 2012-11-28

0 个投票

This message is an important warning that something might going wrong. I would never disable such warnings. Do you have a really good reason to suppress it?

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strunack
strunack 2012-11-28
I have 2000000 nos of data sets and i use for loop and use lsqcurvefit inside it. I cannot check all the fitting parameters. So i put conditional statements where only selected data sets need to be chkd. Now since in all iterations the msg is displayed, I can't see my conditional parameters. Also displaying this msg eats up memory.
pls advice.
tks
Jan
Jan 2012-11-28
Why does displaying a message consume memory?
If you want to see a specific output, write it to a GUI or in a file.
strunack
strunack 2012-11-28
Dont you think displaying same convergence message 2000000 times is bit weired?? And why do you think displaying that msg wont consume memory?? I dont want to write it in a file. I want to see it online and when that condition is met 3 graphs will also appear.
Walter Roberson
Walter Roberson 2013-1-4
Displaying the message would use up memory only in the scrollable command window. You can adjust the amount of output that is saved for scroll-back. If you have it set to (say) 25000 lines, then when the 25001's line arrives for output, the old line 1 is deleted, the rest moved up (2 to 1, 3 to 2 and so on) and the new line would become the new 25000'th line. The amount of memory would thus be limited.
Taking up time is going to be more of a problem than taking up memory

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