Changeset 1143 for trunk/python/scantable.py

Timestamp:

08/16/06 09:42:09 (18 years ago)

Author:

mar637

Message:

Implemented Ticket #45 as scantable.mx_quotient.

File:

• trunk/python/scantable.py (modified) (2 diffs)

trunk/python/scantable.py

@@ -791 +791 @@
             in channels only - align if necessary
         Parameters:
-            one scan or comma separated  scans
             mask:     an optional mask (only used for 'var' and 'tsys'
                       weighting)
@@ -1332 +1331 @@
         return s
 
-    def mx_quotient(self, averageoff='median'):
-        """
+    def mx_quotient(self, mask = None, weight='median'):
+        """
+        Form a quotient using "off" beams when observing in "MX" mode.
+        Parameters:
+            weight:         How to average the off beams.  Default is 'median'.
         """
+        if mask is None: mask = ()
         varlist = vars()
         on = scantable(self._math._mx_extract(self, 'on'))
-        s._add_history("mx_quotient", varlist)
+        preoff = scantable(self._math._mx_extract(self, 'off'))
+        off = preoff.average_time(mask=mask, weight=weight, scanav=False)
         print_log()
         from asapmath  import quotient
-        return quotient(on, off)
+        q = quotient(on, off)
+        q._add_history("mx_quotient", varlist)
+        return q
 
     def freq_switch(self, insitu=None):