How to create an array which has an incremental value every 24 elements

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Maitiumc
Maitiumc 2017-3-22
编辑： Stephen23 2017-3-22
Say an array which has the incremental day of the year for every hour of the day, ie 24*365=8760 elements, of 365 different elements. So the first 24 would be 1, the next 24 would be 2 and so on.
I've tried this
aDays(8760,1) =NaN;
for n = 1:365
if rem(n/24,1)~=0
aDays(n,1)=n;
else
aDays(n,1)=n+1;
end
end
but this doesn't work and I'm guessing there is an easier way to do it.
  1 个评论
Maitiumc
Maitiumc 2017-3-22
Between posting and coming back to check, I found that the following works. Obviously, the answer from Stephen is a better way, but thought I would post it anyway:
aDays(8760,1) =NaN;
i=1;
j=24;
m=1;
while m<366
aDays(i:j,1)=m;
i=i+24;
j=j+24;
m=m+1;
end

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采纳的回答

Stephen23
Stephen23 2017-3-22
编辑：Stephen23 2017-3-22
With MATLAB 2015A or newer use repelem:
vec = repelem(1:365,24)
Or for older versions of MATLAB this:
>> vec = reshape(repmat(1:365,24,1),[],1)
vec =
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
etc
>> size(vec)
ans =
8760 1

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