From: Ted H. <ted...@ea...> - 2004-12-05 07:40:13
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Hi, I'm a new PyTables user. I am in the process of rearchitecting a=20 simple GIS program I wrote for mapping bike routes to use PyTables (the=20= data is currently in SDTS (iso8211) format and I have about 500MB of=20 compressed data). > Hi List, > > Now that PyTables has passed its second birthday, we need your=20 > feedback > again. So, please, if you are using PyTables and like this effort to=20= > be > continued and improved, take some time to respond to this > questionnaire; it will help us to decide what to do in the next few > months. > > Following are our plans for the next few months, before releasing the > 1.0 version. Could you respond to these questions by giving a > punctuation ranging from +5 (I absolutely need that) to 0 (I can pass > without this) to these planned features? > > - Implement support for Variable Length values in Table columns (most > likely implemented in a brand-new object called VLTables). +5 I was actually holding out for this feature after reading the SciPy=20= presentation, but when it wasn't in 0.9, I decided to just go ahead=20 anyway. Some of my data could be represented much more naturally with=20= this feature. > - Implement relationships (apart from the existing hierarchical ones) > between objects in the object tree (kind of symbolic links on a > filesystems), and pointers to dataset regions. +2 I would definitely use this feature, but its fairly easy to=20 workaround. > - Implement date support in Leaf objects (specially on Tables). +3 Normally I am a fantic about dates (my day job is in the financial=20= industry), but I don't happen to need them for my current project. > - Full index-based searches in Tables (right now, you can only set = one > condition in index-accelerated searches). +5 Since this is a GIS system, I need to query by rectangular regions=20= (maybe there is some way to do this without already that I havn't=20 thought of?). > - Image support (in the sense stated in > http://hdf.ncsa.uiuc.edu/HDF5/doc/ADGuide/ImageSpec.html). +0 > Now, answer the next questions. If you don"t like to respond all of=20= > them, > this is not necessary. > > - What feature do you like more (not necessarily listed before)? Automatic and fast handling of large data sets (the main feature). > - What feature do you miss more (not necessarily listed before)? Don't know yet. > - Do you prefer seeing PyTables to become (even) faster or less = memory > demanding? Don't know yet. > - Which present limitations do you find more annoying? Don't know yet. > - In which field of engineering, science or business are you using > PyTables? Currently GIS, but might use it in financial modeling. > Ok, that"s all. I hope some of you will take some of his precious = time > to fill-up the questionnaire. Even only one answer would be much > better than our sole opinion!. I hope it useful. Like I said, I'm new to this, so I could be off base. > Thanks, Thank you for making PyTables available! > -- > Francesc Altet > Who"s your data daddy? =A0PyTables -- Ted Horst |