how to modify a structure?
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Hello. I initialize (instantiate) a structure like this:
YourStruct = struct(...
'Date', {cell(2208,1)}, ...
'Hour', {zeros(2208,1)}, ...
'DryBulb', {zeros(2208,1)}, ...
'DewPnt', {zeros(2208,1)}, ...
'SYSLoad', {zeros(2208,1)}, ...
'NumDate', {zeros(2208,1)});
'Date' has 92 days, and 'Hour' has 24 hours, from 1 to 24. How can I express 'Date' and 'Hour' in serial date numbers and how do I present these serial date numbers in 'NumDate'? Thank you.
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回答(1 个)
Walter Roberson
2012-9-16
NumDate = Data.Date + (Data.Hour - 1) / 24;
5 个评论
Walter Roberson
2012-9-17
Your Hour field is the same length as your Date field, which suggests you want exactly 1 hour conversion for each Date converted, rather than wanting to create 24 hour conversions for each Date converted.
data.NumDate = datenum(Data.Date) + (Data.Hour - 1) / 24;
except that you might need to add an additional parameter to datenum() in order to indicate the date format.
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