Changeset 301 for trunk/python

Timestamp:

01/26/05 02:00:39 (20 years ago)

Author:

kil064

Message:

add function resample

Location:

trunk/python

Files:

• __init__.py (modified) (1 diff)
• asapmath.py (modified) (1 diff)

trunk/python/__init__.py

@@ -287 +287 @@
         simple_math         - simple mathematical operations on two scantables,
                               'add', 'sub', 'mul', 'div'
-        scale               - returns a scan scaled by a given factor
-        add                 - returns a scan with given value added 
+        scale               - return a scan scaled by a given factor
+        add                 - return a scan with given value added 
         bin                 - return a scan with binned channels
+        resample            - return a scan with resampled channels
         smooth              - return the spectrally smoothed scan
         poly_baseline       - fit a polynomial baseline to all Beams/IFs/Pols

trunk/python/asapmath.py

@@ -262 +262 @@
         from asap._asap import bin_insitu as _bin
         _bin(scan, width)
+        return
+
+def resample(scan, width=5, method='cubic', insitu=None):
+    """
+    Return a scan where all spectra have been binned up
+        width:       The bin width (default=5) in pixels
+        method:      Interpolation method when correcting from a table. Values 
+                     are  "nearest", "linear", "cubic" (default) and "spline"
+        insitu:      if False a new scantable is returned.
+                     Otherwise, the scaling is done in-situ
+                     The default is taken from .asaprc (False)
+    """
+    if insitu is None: insitu = rcParams['insitu']
+    if not insitu:
+        from asap._asap import resample as _resample
+        return scantable(_resample(scan, method, width))
+    else:
+        from asap._asap import resample_insitu as _resample
+        _resample(scan, method, width)
         return