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How to plot two matrices with multiple conditions on same graph?

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Tien T
Tien T 2014-8-6
评论： Tien T 2014-8-7
How would I be able to plot two matrices on the same plot given that they must satisfy two conditions?
Below is the code that I tried to implement this. numDetnARR and numFAARR are [836 x 1] vectors and probFAARReshape and probDetnARRReshape are [76 x 11] matrices.
Running this gave the error, 'Operands to the and && operators must be convertible to logical scalar values.' because of the line
if (numDetnARR < maxDetn) && (numDetnARR > minDetn)
and
if (numFAARR < maxFA) && (numFAARR > minFA)
I'm not sure how to fix these.
Plot for minimum threshold values of detection and FA
maxDetn = 5000;
minDetn = 10;
boolDetn = 0;
if (numDetnARR < maxDetn) && (numDetnARR > minDetn)
boolDetn = 1;
end
maxFA = 5000;
minFA = 10;
boolFA = 0;
if (numFAARR < maxFA) && (numFAARR > minFA)
boolFA = 1;
end
minFA = numFAARR >= 10;
plot(probFAARRReshape(boolFA == 1),probDetnARRReshape(boolDetn == 1),'r');
This isn't very efficient but as simple as I come with. Could someone help me with this?

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回答（1 个）

Andrew Reibold
Andrew Reibold 2014-8-6
编辑：Andrew Reibold 2014-8-6
Try using & instead of &&
Do you get the same problem?
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Andrew Reibold
Andrew Reibold 2014-8-7
What do you mean when you say "it says its not plotting anything" Is 'Matlab' 'it'? What is 'it' saying?
Is an error being generated? Or are you personally identifying that, clearly, there is no plot! lol
Tien T
Tien T 2014-8-7
So MATLAB is showing the following warning in the command window:
Warning: Plot empty.
> In legend at 286
So yes, I am trying to tell you that there is no plot generated from the code I used. Sorry for the confusion haha.

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