I am attempting to sort a large set of 3D data, into 2D frames. For context, the data I have imported is a text file and I want to seperate the text file into seperate tables, which all have the same X value. I had previously done this by creating several ID variables…
idx_250 = FFF1.x_coordinate == 0.25;
x_250 = FF1(idx_250,:);
This was repeated for each X value from 0.25 to 4, in 0.25 intervals. In attempt to neaten this up I tried to create a for loop.
for i = 1 :length(xv1)
id = FFF1.x_coordinate == xv1(i);
idTable = FFF1(id,:);
%Here I will process the data within idTable and save it in an appropriate array
end
Here, xv1 is a vector containing all of my x values [0.25 0.5 … 4].
However, when i = 1 and xv1(i) therefore equals 0.25, the id vector only has one true value. However if I put: id = FFF1.x_coordinate == 0.25, there is no problem. Could someone please explain why it would work if i directly type 0.25 vs a variable with the same value? Thanks!I am attempting to sort a large set of 3D data, into 2D frames. For context, the data I have imported is a text file and I want to seperate the text file into seperate tables, which all have the same X value. I had previously done this by creating several ID variables…
idx_250 = FFF1.x_coordinate == 0.25;
x_250 = FF1(idx_250,:);
This was repeated for each X value from 0.25 to 4, in 0.25 intervals. In attempt to neaten this up I tried to create a for loop.
for i = 1 :length(xv1)
id = FFF1.x_coordinate == xv1(i);
idTable = FFF1(id,:);
%Here I will process the data within idTable and save it in an appropriate array
end
Here, xv1 is a vector containing all of my x values [0.25 0.5 … 4].
However, when i = 1 and xv1(i) therefore equals 0.25, the id vector only has one true value. However if I put: id = FFF1.x_coordinate == 0.25, there is no problem. Could someone please explain why it would work if i directly type 0.25 vs a variable with the same value? Thanks! I am attempting to sort a large set of 3D data, into 2D frames. For context, the data I have imported is a text file and I want to seperate the text file into seperate tables, which all have the same X value. I had previously done this by creating several ID variables…
idx_250 = FFF1.x_coordinate == 0.25;
x_250 = FF1(idx_250,:);
This was repeated for each X value from 0.25 to 4, in 0.25 intervals. In attempt to neaten this up I tried to create a for loop.
for i = 1 :length(xv1)
id = FFF1.x_coordinate == xv1(i);
idTable = FFF1(id,:);
%Here I will process the data within idTable and save it in an appropriate array
end
Here, xv1 is a vector containing all of my x values [0.25 0.5 … 4].
However, when i = 1 and xv1(i) therefore equals 0.25, the id vector only has one true value. However if I put: id = FFF1.x_coordinate == 0.25, there is no problem. Could someone please explain why it would work if i directly type 0.25 vs a variable with the same value? Thanks! table MATLAB Answers — New Questions

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