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What is wrong with this
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I just want to create a variable to hold 5 different sets of values...
Mass_red
Any ideas??
load remove_outlier.mat
LMT = [20 25 28 32 36];
HMT = [40 40 40 40 39.5];
for k=1:5
i=1;
while(Mass(i) < LMT(k))
i=i+1;
end
j=1;
while(Mass(j) < HMT(k))
j=j+1;
end
Mass_red(k) = Mass(i:j);
end
Thanks
Note: Mass is loaded in to the workspace. It is a 3201 x 1 double. Basically, it is a vector with sequential values from 15 to 47. I suppose you could say it was 15:0.01:47
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Respuestas (4)
Andrei Bobrov
el 13 de Abr. de 2012
z = bsxfun(@times,Mass,bsxfun(@ge,Mass,LMT)&bsxfun(@lt,Mass,HMT));
Mass_red = z(any(z,2),:)';
OR [EDIT]
t = bsxfun(@ge,Mass,LMT)&bsxfun(@le,Mass,HMT);
z = bsxfun(@times,Mass,t)
Mass_red = arrayfun(@(ii)z(t(:,ii),ii),(1:size(z,2)),'un',0);
4 comentarios
Thomas
el 13 de Abr. de 2012
To begin with:: you do not define Mass but you still use it to check its value in a while loop.
what is Mass?
EDIT
I think This is what you need
Mass=15:0.01:47;
LMT = [20 25 28 32 36];
HMT = [40 40 40 40 39.5];
for k=1:5
i=1
if (Mass(i) < LMT(k))
i=i+1
end
j=1
if (Mass(j) < HMT(k))
j=j+1
end
Mass_red(k,:) = Mass(i:j);
end
11 comentarios
Walter Roberson
el 13 de Abr. de 2012
i:j is going to have varying range depending on the data values, so Mass(i:j) will be varying sizes. You are trying to store each iteration into a numeric array, but the iterations are not of constant size. That is going to be a problem: numeric arrays cannot have rows or columns of varying size. You are going to have to use a cell array:
Mass_red{k} = Mass(i:j);
Notice the {} instead of ()
3 comentarios
Walter Roberson
el 13 de Abr. de 2012
That error implies that you initialized Mass_red in some code you did not show us. You need to initialize it differently for cell arrays.
Image Analyst
el 13 de Abr. de 2012
Instead of all that looping over i and j, why not just do
LMTIndex = find(Mass >= LMT(k), 1, 'first');
HMTIndex = find(Mass >= HMT(k), 1, 'first');
startingIndex = min([LMTIndex HMTIndex]);
endingIndex = max([LMTIndex HMTIndex]);
Mass_red{k} = Mass(startingIndex : endingIndex)
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