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 Time difference of more than 24 hours.		  New Topic  Reply to Topic
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cyberjuda

Germany
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Posted - 01/20/2015 :  06:31:03 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. and Service Release (Select Help-->About Origin): OriginPro 9.1.0 (64-bit)
Operating System: Windows 7

Hi,

I am trying to subtract dates with time and put them in another column as minutes (numeric). I am using the following command and it works fine until the difference is more than 24 hours. I realize this is because of the hour command only reading up till 24. Can someone suggest a workaround?

col(1)=minute(col(4)-col(4)[1])+60*hour(col(4)-col(4)[1]);

lkb0221

China
497 Posts
Posted - 01/20/2015 :  09:52:45 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
wcol(1)[1] = 0;
for (int row = 2; row <= wks.nrows; row++) {
wcol(1)[row] = wcol(1)[row-1] + minute(wcol(4)[row]-wcol(4)[row-1])+60*hour(wcol(4)[row]-wcol(4)[row-1]);
}
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cyberjuda

Germany
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Posted - 01/21/2015 :  05:51:47 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thanks, it works great. Is there some way to do it without a loop? This is part of a big script and I want to reduce the time.
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lkb0221

China
497 Posts
Posted - 01/21/2015 :  09:35:09 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
col(1) = (col(4)-col(4)[1]) / time(00:01:00);
Edited by - lkb0221 on 01/21/2015 09:52:10 AM
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