import txt file in matlab

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BA
BA 2024-6-18
编辑： Stephen23 2024-6-19
I failed to import the attached txt which I need it to be read with the below function
which converts it into another data shape. I do not know what seems to be the problem. Any ideas?
function FBW = get_FBW(Ftable)
d = importdata(Ftable);
for i = 2:size(d.data,1) % do each row separately
rowdat = d.data(i,:);
rowdat = rowdat(~isnan(rowdat));
col = (rowdat(1:2:end-1));
val = rowdat(2:2:end);
nframes = col(end);
FBW(i-1,:) = zeros(1,nframes);
for j = 2:length(col)
if col(j) - col(j-1) >0
slope = (val(j) - val(j-1)) ./ (col(j) - col(j-1));
for k = 0:col(j)-col(j-1)
FBW(i-1, (col(j-1)+k)) = val((j-1)) + k*slope;
end
end
end
end

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采纳的回答

Image Analyst
Image Analyst 2024-6-19
It looks like just a simple matrix of numbers. Try readmatrix
d = readmatrix(Ftable)
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显示 1更早的评论
BA
BA 2024-6-19
and this one for using the code before:Unable to perform assignment because the size of the left side is 1-by-6 and the size of the right side is 1-by-2500.
Error in get_FBW (line 19)
FBW(i-1,:) = zeros(1,nframes);
Stephen23
Stephen23 2024-6-19
编辑：Stephen23 2024-6-19
Ran in:
d = readmatrix('Ftable.txt')
d = 2x3
400 1000 2500 70 100 150
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and remove ".data" from your code. Avoid IMPORTDATA.
for i = 2:size(d,1) % do each row separately
rowdat = d(i,:);
rowdat = rowdat(~isnan(rowdat));
col = (rowdat(1:2:end-1));
val = rowdat(2:2:end);
nframes = col(end);
FBW(i-1,:) = zeros(1,nframes);
for j = 2:length(col)
if col(j) - col(j-1) >0
slope = (val(j) - val(j-1)) ./ (col(j) - col(j-1));
for k = 0:col(j)-col(j-1)
FBW(i-1, (col(j-1)+k)) = val((j-1)) + k*slope;
end
end
end
end
FBW
FBW = 1x70
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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更多回答（1 个）

Taylor
Taylor 2024-6-18
The problem is that "d" is not a structure so dot indexing does not apply.
  2 个评论
BA
BA 2024-6-18
@TaylorDo you have an idea what I should do?
Taylor
Taylor 2024-6-18
Removing ".data" from the function should fix it (though I'm not entirely clear on the purpose of the function). There may be a better way to do what you're aiming for if you can clarify the goal of your function.

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