Date help created: 28 Dec 1993 Date last updated: 09 Oct 1996'extract' extracts chosen (hyper)planes from multi-dimensional data files. Thus extracting a three-dimensional volume from a four-dimensional data file would involve the choosing a fixed point in the one-dimensional rows orthogonal to the volume.
The input data file must be blocked.
To run the program type
extract <extract script file>
The extract script file must have the following format:
input <par file of input data file> output <output (extracted) data file> par <par file of output data file> ! this is optional extract <pairs of <dim. fixed>:<fixed point for this dim.>> ! one pair for each fixed dimension
and a typical example would be
input /usr/people/wb104/edl387/edl387_5.spc.par output /usr/people/wb104/edl387/edl387_5_224_136.spc extract 1:224 2:136 ! there are two fixed dims., dim. 1 and dim. 2 ! dim. 1 fixed at point 224 ! dim. 2 fixed at point 136
This fixes point 224 in dimension 1 and point 136 in dimension 2, and extracts the data in the directions orthogonal to dims. 1 and 2. If the original data set was 3-dimensional, the extracted data set would be 1-dimensional.
Azara help: extract / W. Boucher / azara@bioc.cam.ac.uk