How obtain the Y value that corresponds to the largest X value for a number of plots?
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Hi,
I am trying to write a code that gives me the Y value that corresponds to the largest X value for a number of plots.
I have a code that interpolates X values from Y. I just need the oposite and for the largest X values instead.
clear; clc;
Folder = cd;
N=170;
x2 = zeros(N, 10);
for k = 1:N;
Driftt = sprintf('Disp%d.out', k);
Reactt = sprintf('React%d.out', k);
matDrift = importdata(fullfile(Folder, Driftt));
matReact = importdata(fullfile(Folder, Reactt));
x1= matDrift(:,1);
y1= matDrift(:,2);
[x3, ix] = unique(x1);
y3 = y1(ix);
A=dlmread('Time.txt');
for i=1:size(A,2)
x2 (k,:) = interp1(y3, x3, A(:,i), 'linear');
temp=x2(k,:);
temp(isnan(temp))=0.05;
x2(k,:)=temp;
fid=fopen(['result_' num2str(i) '.txt'],'a');
fprintf(fid,'%f\n',x2(k,:));
fclose(fid);
end
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Réponses (2)
Yasasvi Harish Kumar
le 18 Fév 2019
Modifié(e) : madhan ravi
le 18 Fév 2019
Hey,
I think the following should help. The variable big is an array of the largest x value in each row and the variable bigy is contains corresponding y values.
clear; clc;
Folder = cd;
N=170;
big = zeros(N);
bigy = zeros(N);
x2 = zeros(N, 10);
for k = 1:N;
Driftt = sprintf('Disp%d.out', k);
Reactt = sprintf('React%d.out', k);
matDrift = importdata(fullfile(Folder, Driftt));
matReact = importdata(fullfile(Folder, Reactt));
x1= matDrift(:,1);
y1= matDrift(:,2);
[x3, ix] = unique(x1);
y3 = y1(ix);
A=dlmread('Time.txt');
for i=1:size(A,2)
x2 (k,:) = interp1(y3, x3, A(:,i), 'linear');
temp=x2(k,:);
temp(isnan(temp))=0.05;
x2(k,:)=temp;
for z = 1:10
if x2(k,z)>big(z)
big(z) = x2(k,z);
bigy(z) = A(z,i);
end
end
fid=fopen(['result_' num2str(i) '.txt'],'a');
fprintf(fid,'%f\n',x2(k,:));
fclose(fid);
end
I hope I was of some help.
Regards
2 commentaires
Yasasvi Harish Kumar
le 18 Fév 2019
To interpolate you will need unique y3 and x3 values. Is there any repeating value in x3 and y3?
KSSV
le 18 Fév 2019
Read about the function max
Let X,Y be your data.
[max_x,idx] = max(X) ;
max_y = Y(idx) ;
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