Unable to perform assignment because the size of the left side is 1-by-1 and the size of the right side is 0-by-1.

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Miguel Cardoso
Miguel Cardoso 2020-5-21
评论： Miguel Cardoso 2020-5-21
There is a lot of questions here on the community but no one answer porperly my question.
Here is the code:
load('data.mat')
v=0.90:0.01:1.05;
ca=0.95:0.01:1.05;
for i=1:length(v)
for j=1:length(ca)
ij=find(data(:,1)==v(i) & data(:,2)==ca(j));
M(i,j)=data(ij,3);
end
end
[V,CA]=meshgrid(v,ca);
contourf(V,CA,M,20);
Hope you can help me. I attached the data file.

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采纳的回答

KSSV
KSSV 2020-5-21
You want this.
S = load("data.mat") ;
data = S.Fe2MnGe_new ;
v = data(:,1) ;
ca = data(:,2) ;
z = data(:,3) ;
nx = length(unique(v)) ; ny = length(unique(ca)) ;
X = reshape(v,ny,nx) ;
Y = reshape(ca,ny,nx) ;
Z = reshape(z,ny,nx) ;
contour(X,Y,Z)

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