There is no "EPOCH" format within DX. The DX data model can represent time-varying data via a time series (group), for example. Each series member has a float tag, whose semantics are up to the user (e.g., nsec since the explosion or fortnights since you started collecting data). In your case, you can Import hour, minute, second and fractional second values (or read the time tag string and parse it within DX) and use Compute to create a float for time of day, which can then be the series value.
One of the data access APIs supported by Import is CDF, which has an optional "EPOCH" notation. I wrote a tool about 6 years ago that parses the CDF EPOCH into a form more usable within DX. There have been occasional references to that within some DX documentation. Was that what you had seen as a DX EPOCH value? -------------------------- Lloyd A. Treinish Deep Computing Institute IBM Thomas J. Watson Research Center P. O. Box 704 Yorktown Heights, NY 10598 914-784-5038 (voice) 914-784-7667 (facsimile) [EMAIL PROTECTED] http://www.research.ibm.com/people/l/lloydt/ Jérôme Margat <[EMAIL PROTECTED]>@opendx.watson.ibm.com on 03/09/2000 05:09:10 AM Please respond to [email protected] Sent by: [EMAIL PROTECTED] To: "[email protected]" <[email protected]> cc: Subject: [opendx-users] EPOCH format Hi, I intend to use DX to plot some systems activities in real time. To do it, I use the 'sar' command which give me this kind of output : 09:35:09 %usr %sys %intr %wio %idle %sbrk %wfs %wswp %wphy %wgsw %wfif 09:35:39 16 6 1 1 76 0 95 0 0 5 0 09:36:09 14 4 1 0 81 0 56 0 0 44 0 09:36:39 18 4 1 1 77 0 95 0 0 5 0 09:37:09 24 4 1 1 69 0 50 50 0 0 0 09:37:39 23 6 1 2 68 0 96 3 0 1 0 09:38:10 25 5 1 3 67 0 100 0 0 0 0 I'd like to plot '%usr' versus 'time' but I don't know how to convert something like 09:35:39 to the EPOCH format needed by DX. Can anybody help me ? Regards, Jerome Margat
