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

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Tien T el 6 de Ag. de 2014
Comentada: Tien T el 7 de Ag. de 2014
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?
##### 1 comentarioMostrar -1 comentarios más antiguosOcultar -1 comentarios más antiguos
Andrew Reibold el 6 de Ag. de 2014
Left out some of the variable definitions for us to run / debug, but we could make stuff up I guess.

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### Respuestas (1)

Andrew Reibold el 6 de Ag. de 2014
Editada: Andrew Reibold el 6 de Ag. de 2014
Try using & instead of &&
Do you get the same problem?
##### 3 comentariosMostrar 1 comentario más antiguoOcultar 1 comentario más antiguo
Andrew Reibold el 7 de Ag. de 2014
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 el 7 de Ag. de 2014
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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