import txt file in matlab

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

Answer 1

[Image Analyst]

It looks like just a simple matrix of numbers. Try readmatrix

d = readmatrix(Ftable)

[BA]

Igot this error "filename" must be a string scalar or character vector.

[BA]

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]

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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Answer 2

[Taylor]

The problem is that "d" is not a structure so dot indexing does not apply.

[BA]

@TaylorDo you have an idea what I should do?

[Taylor]

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.