extract(x1, y1)
extract(x1, y1, x2, y2)
Permits to extract a portion of the data.
Data can then be processed as a regular data-set.
EXTRACT changes the value of OFFSET and SPECW accordingly.
- extract(x1,y1) for 1D datasets.
- extract(x1, y1, x2, y2) for 2D datasets.
- Not implemented in 3D.
see also : chsize
NPK Documentation, version 0.995 - 2009-10-14