Problem with fprintf
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Hi All,
I am having a trouble with fprintf and I would so much appreaciate if you could help me: In the programme on which I am working now, I am tracking the mouse position when the mouse is clicked using get(gca, ‘currentpoint’) and then I save the final position using fprintf. Everything works smoothly when I do not define a particular axis position in the figure window; however when I use set(gca, ‘visible’, ‘off’, ‘position’, ‘[]) command to define a particular axis position, fprintf sometimes writes down a string, either K or á, on the text file, which then gives the obvious error with the dlmread when the file is tried to be read. I wonder what might be the cause of those strings on the text file.
Thank you very much,
inci
4 个评论
Oleg Komarov
2012-5-28
We don't even know the syntax you're using for fprintf!
Summarizing a problem is part of being a good programmer. Not being able to do so, means you don't have all the relevant aspects under control. It's not a critic, it's a state that we've all been through. You can try to deal it by yourself or you can ask for help (and I would always encourage the latter) but it should be done properly.
A wild guess:
>> fprintf('%s\n','224')
224
>> fprintf('%s\n',224)
à
回答(1 个)
Oleg Komarov
2012-5-28
Transpose A and B:
fprintf(fid,'%s %d\n',A');
fprintf(fid,'%s %d\n',B');
As I understand, you saved two columns, respectively of strings and of numbers. However, fprintf() will process A and B along the first dimension (rows) and will switch to the second one only once the first is over.
To be more clear, I think you expect that frpintf will take a string, than a number, then will go to row 2 and repeat the same, but the default behaviour is to go down till the end THEN switch to the second column, thus you need to transpose.
3 个评论
Oleg Komarov
2012-5-28
fprintf() doesn't accept cell arrays.
As I say above, transpose your A (whatever you called) when it has multiple rows.
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