how can i convert hourly data for a year to daily data?

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ABDULLA RAHIL
ABDULLA RAHIL 2015-6-3
回答： Albatross 2015-6-12
my data start from 1:1:8760 how can i chnge it to daily data with 365 data instead of 8760
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Ingrid
Ingrid 2015-6-3
depends on what you want to do? How do you want to make the conversion. Do you require daily average, daily maximum, daily minimum, value at noon each day, ....

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采纳的回答

Salaheddin Hosseinzadeh
Hi Abdulla,
You may wanna have a look at reshape() function.
Put your data in a column, (apparently its a vector now)
data = data(:); this is one way to make a single column
Than you can reshape your column to a matrix of 360 X N if you like. However 8760 does not generate an integer if divided by 360, so I suggest you pad your data first of all with required number of zeros.
So finally you will have a 360xN data where N is the number of years (about 25 years of data). But keep in mind you will end up with a Matrix.
Hope this helps.
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Salaheddin Hosseinzadeh
Salaheddin Hosseinzadeh 2015-6-3
Abdulla,
I think I forgot that we've 365 days in a year! I confused with 2Pi or 360 degrees! lol
I need to practice the number of finger in one hand, number of days in a month and ... LOL
Anyhow, hope you're problem is solved now that you kindly accepted my answer.
Good luck
ABDULLA RAHIL
ABDULLA RAHIL 2015-6-12
many thanks for your answer but I am struggling to do that even I tried many times , i will send the file to you and see if it is possible or not

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更多回答（1 个）

Albatross
Albatross 2015-6-12
I suspect you want to do something like this:
a=1:1:8760;
b=reshape(a,24,365)'

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