How to plot minima and maxima of two matrices

Question

Vahid Esmaeili 2020-8-12

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https://ww2.mathworks.cn/matlabcentral/answers/578799-how-to-plot-minima-and-maxima-of-two-matrices

评论： Vahid Esmaeili 2020-8-13

Hello

It was supposed the following lines find the maximum of the rows in RAJ_Mx1 taking into consideration only those values where the corresponding elements in RHMORx are greater and less than zero. When I plot RAJ_Mx1 and RHMORx together, I cannot find these values! Would you please assist me to find out why and how can I plot them properly to find the maxima that the program was supposed to provide with?

peakMOM_pos_R_Ank_pos_powerIny=mean(max(RAJ_In1.*(RAJMORy>0 ),[],2));
peakMOM_pos_R_Ank_neg_powerIny=mean(min(RAJ_In1.*(RAJMORy>0 ),[],2));
peakMOM_neg_R_Ank_pos_powerIny=mean(max(RAJ_In1.*(RAJMORy<0 ),[],2));
peakMOM_neg_R_Ank_neg_powerIny=mean(min(RAJ_In1.*(RAJMORy<0 ),[],2));

Thank you so much,

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Answer 1

Cris LaPierre 2020-8-12

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https://ww2.mathworks.cn/matlabcentral/answers/578799-how-to-plot-minima-and-maxima-of-two-matrices#answer_478875

编辑：Cris LaPierre 2020-8-12

The four lines of code you shared each check a different condition.

max value in each row of RAH_In1 but only considering values that correspond to positive values in RAJMORy.
min value in each row of RAH_In1 but only considering values that correspond to positive values in RAJMORy.
max value in each row of RAH_In1 but only considering values that correspond to negative values in RAJMORy.
min value in each row of RAH_In1 but only considering values that correspond to negative values in RAJMORy.

Having found the corresponding value for each of the 9 rows, the last thing each line of code does is calculate the mean of the 9 values. The result is a single number. Because it is a mean, you will not find a corresponding value in either matrix.

peakMOM_pos_R_Ank_pos_powerIny = mean(max(RAJ_In1.*(RAJMORy>0),[],2));