Correlation coefficient calculation error
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As I try to find correlation coefficient for the respective variables i.e. 'td' & 'cumulat', in for loop, some error is coming in the process of execution. Please help.
clear;clc;close all
S = load('DQS.mat');
F = fieldnames(S);
for n = 1:numel(F)
F1 = fieldnames(S.(F{n}));
F11{n} = F1;
% allocate the variables
nn = cell(numel(F1),1);
PArea = cell(numel(F1),1);
t_max = cell(numel(F1),1);
for n1 = 1:numel(F1)
t = S.(F{n}).(F1{n1}).cc.t;
t_max{n1} = max(t);
nn{n1} = F1{n1};
output{n1} = cumtrapz(t);
NF = @(p,q) max(output{n1}(t<=q)) - min(output{n1}(t>=p));
PArea{n1} = NF(5, 6);
end
T_max{n} = t_max;
tt = cell2mat(T_max{1,n}(:,end));
td{n} = tt./max(tt);
cumulat{n} = PArea;
[R{n},P{n}] = corrcoef(td,cumulat); %correlation coeff. calculation
end
1 commentaire
Jonas
le 23 Juin 2022
can you please edit your question, format your code as code and press the compile button (green rectangle), this way we can see what is happening
Réponse acceptée
Mathieu NOE
le 23 Juin 2022
hello
seems to me the code could be made simpler, why the need to make all this cell acrobatics ?
clear;clc;close all
S = load('DQS.mat');
F = fieldnames(S);
for n = 1:numel(F)
F1 = fieldnames(S.(F{n}));
F11{n} = F1;
% allocate the variables
nn = cell(numel(F1),1);
for n1 = 1:numel(F1)
t = S.(F{n}).(F1{n1}).cc.t;
t_max(n1) = max(t);
nn{n1} = F1{n1};
output{n1} = cumtrapz(t);
NF = @(p,q) max(output{n1}(t<=q)) - min(output{n1}(t>=p));
PArea(n1) = NF(5, 6);
end
td = t_max./max(t_max);
cumulat = PArea;
[R{n},P{n}] = corrcoef(td,cumulat); %correlation coeff. calculation
end
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