Hi, I'm trying to learn how to use pytables to store some hydrographic survey data. Essentially I have the following structure:
profile - fixed size string time - float latitude - float longitude - float frequency - float trace - numpy array of floats (fixed size for a particular profile but changes for different profiles) cur_depth - float pre_depth - float I want to aggregate this data from multiple profiles and store it in a single hdf5 file. Each profile has about 2-3K records and a fixed trace size. Later I want to be able pull data out in the following ways. 1) for a particular profile and frequency get all trace data to form a raster. For example, for profile = '082311', frequency = 200.0, I would get back a 2D array of traces 2) for a particular frequency get latitude,longitude,cur_depth I've followed the tutorial and done some googling of the mailing list but I'm unsure how to represent the 'trace' numpy array within pytables. Any pointers would be greatly appreciated. thanks, - dharhas Dharhas Pothina, Ph.D., P.E. Team Lead - Data, Analysis and Modeling Surface Water Resources Division Texas Water Development Board 1700 North Congress Ave. P.O. Box 13231 Austin, TX 78711-3231 Tel: (512) 936-0818 Fax: (512) 936-0816 dharhas.poth...@twdb.state.tx.us www.twdb.state.tx.us
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