copy corresponding values of 2nd metrics depend on 1st metrics values

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I have a two metrics in similer size lets say X and Y. I want to check the values in X and it it satisfind the requirement I want to copy coresponding Y element to separate metricxs Z, Z2, Z3
what i did is some thing like this
Z=[]
ii=0
Z2=[]
iii=0
Z3=[]
iiii=0
[RawX, ColX]= size(X)
j=1:RawX;
for n=1:ColX
if 100< X(j)<=300
ii=ii+1
Z(ii)=Y(j);
elseif if 300< X(j)<=400
iii=iii+1
Z2(iii)=Y(j);
else 400<X(j)<=500
iiii=iiii+1
Z3(iiii)=Y(j)
end
end
but im geting error
Unable to perform assignment because the indices on the left side are not compatible with the size of the right side.
can you please help me

Answers (1)

VBBV
VBBV on 30 Nov 2022
Z=[];
ii=0
ii = 0
Z2=[];
iii=0;
Z3=[];
iiii=0;
X = rand(10)
X = 10×10
0.9550 0.0528 0.3988 0.4975 0.7866 0.9424 0.2501 0.1528 0.6154 0.5278 0.8411 0.4808 0.4519 0.0127 0.6746 0.9043 0.7531 0.2694 0.6852 0.1152 0.6055 0.2063 0.3776 0.3398 0.3013 0.1026 0.3232 0.1187 0.1144 0.3154 0.6749 0.4006 0.3833 0.5210 0.2074 0.6915 0.4091 0.9405 0.9099 0.2460 0.5347 0.6288 0.1128 0.8486 0.9665 0.7050 0.3994 0.2600 0.4173 0.0007 0.6950 0.4900 0.9118 0.0861 0.6187 0.0779 0.4888 0.9111 0.6740 0.8997 0.9076 0.0074 0.0239 0.4018 0.2651 0.9420 0.6340 0.2600 0.7264 0.4563 0.6546 0.9304 0.7353 0.6589 0.3517 0.2979 0.9512 0.8805 0.3336 0.9582 0.9904 0.7073 0.0651 0.7886 0.2412 0.1601 0.0626 0.3314 0.7760 0.3133 0.7171 0.5072 0.8630 0.0368 0.7734 0.3215 0.8643 0.3409 0.2823 0.7226
Y = rand(10)
Y = 10×10
0.1704 0.8017 0.0205 0.4158 0.7554 0.3214 0.8027 0.3020 0.9977 0.4332 0.2569 0.3404 0.2607 0.0886 0.7803 0.3954 0.0559 0.2862 0.6263 0.7057 0.8485 0.2298 0.1175 0.9574 0.8146 0.4981 0.4196 0.4720 0.8239 0.9954 0.8642 0.3274 0.0782 0.7858 0.9190 0.6252 0.6087 0.4671 0.3124 0.4045 0.8691 0.1809 0.5842 0.2886 0.2138 0.5709 0.7740 0.4126 0.0743 0.2323 0.1690 0.2461 0.1627 0.2844 0.3157 0.7184 0.6950 0.2450 0.9863 0.9395 0.7306 0.1196 0.3231 0.3055 0.7063 0.9774 0.9120 0.3559 0.0500 0.3417 0.1630 0.9525 0.5878 0.0733 0.9825 0.0536 0.9909 0.4954 0.6741 0.2727 0.2753 0.8191 0.0867 0.6823 0.1238 0.4268 0.0039 0.0932 0.6092 0.1667 0.9370 0.7577 0.1246 0.1005 0.9175 0.8412 0.6232 0.8542 0.5723 0.1105
[RawX, ColX]= size(X)
RawX = 10
ColX = 10
for j=1:RawX;
for n=1:ColX
if 100< X(j,n)<=300
ii=ii+1;
Z(ii)=Y(j,n);
elseif 300< X(j,n)<=400
iii=iii+1;
Z2(iii)=Y(j,n);
else 400<X(j,n)<=500
iiii=iiii+1;
Z3(iiii)=Y(j,n);
end
end
end

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