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Matlab Data-series conversion

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J
J 2013-5-7
Hello,
I Have been trying for the past couple of days to convert a time-series data-set but, unfortunately, with no results.
I have attached an extract from the excel file. The first row is date and time (together) and their respective temperatures taken every 10 minutes. The problems with this are three: the first it that the dataset is not contiguous (ie sometime there are holes where the data were not recorded for a certain amount of time) the second is that I would need a contiguous series where if a day was not recorded the time would still be 'flowing' and the temperature would be indicated as missing. The third is that I would need an hourly series instead of a one every 10minutes.
Would any of you have any ideas?
Thanks John
if true
01/11/2009 00:03 11.35
01/11/2009 00:13 11.25
01/11/2009 00:23 11.25
01/11/2009 00:33 11.35
01/11/2009 00:43 11.35
01/11/2009 00:53 11.35
01/11/2009 01:03 11.35
01/11/2009 01:13 11.35
01/11/2009 02:03 11.44
01/11/2009 02:13 11.44
01/11/2009 02:23 11.44
01/11/2009 02:33 11.44
01/11/2009 02:43 11.44
01/11/2009 02:53 11.44
end

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回答（1 个）

Image Analyst
Image Analyst 2013-5-8
Have you looked at using interp1()?
  2 个评论
J
J 2013-5-8
hi, yes I have but I think that the problem is with the 'missing ' non contiguous data. Thanks
Image Analyst
Image Analyst 2013-5-8
Why is that a problem? Interpolation will estimate them for you. Pass in what you have, and ask for what you want and you'll get it.

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