Re: [Numpy-discussion] read not byte aligned records

2015-05-04 Thread Nathaniel Smith
On Mon, May 4, 2015 at 10:21 PM, Jerome Kieffer wrote: > Hi, > If you want to play with 10 bits data-blocks, read 5 bytes and work with 4 > entries at a time... NumPy arrays don't have any support for sub-byte alignment. So if you want to handle such data, you either need to write some manual pa

Re: [Numpy-discussion] read not byte aligned records

2015-05-04 Thread Jerome Kieffer
Hi, If you want to play with 10 bits data-blocks, read 5 bytes and work with 4 entries at a time... -- Jérôme Kieffer Data analysis unit - ESRF ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-d

[Numpy-discussion] read not byte aligned records

2015-05-04 Thread Gmail
Hi, I am developping a code to read binary files (MDF, Measurement Data File). In its previous version 3, data was always byte aligned. I used widely numpy.core.records module (fromstring, fromfile) showing good performance to read and unpack data on the fly. However, in the latest version 4, not