Revision: 7205
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=7205&view=rev
Author: jdh2358
Date: 2009-06-09 16:47:46 +0000 (Tue, 09 Jun 2009)
Log Message:
-----------
add rec_keep_fields w/ support for rec2txt
Modified Paths:
--------------
trunk/matplotlib/lib/matplotlib/mlab.py
Modified: trunk/matplotlib/lib/matplotlib/mlab.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/mlab.py 2009-06-08 20:49:29 UTC (rev
7204)
+++ trunk/matplotlib/lib/matplotlib/mlab.py 2009-06-09 16:47:46 UTC (rev
7205)
@@ -2107,8 +2107,22 @@
return newrec
+def rec_keep_fields(rec, names):
+ """
+ Return a new numpy record array with only fields listed in names
+ """
+ if cbook.is_string_like(names):
+ names = names.split(',')
+
+ arrays = []
+ for name in names:
+ arrays.append(rec[name])
+ return np.rec.fromarrays(arrays, names=names)
+
+
+
def rec_groupby(r, groupby, stats):
"""
*r* is a numpy record array
@@ -2699,7 +2713,7 @@
format.fmt = '%r'
return format
-def rec2txt(r, header=None, padding=3, precision=3):
+def rec2txt(r, header=None, padding=3, precision=3, fields=None):
"""
Returns a textual representation of a record array.
@@ -2714,6 +2728,10 @@
list of integers to apply precision individually.
Precision for non-floats is simply ignored.
+ *fields* : if not None, a list of field names to print. fields
+ can be a list of strings like ['field1', 'field2'] or a single
+ comma separated string like 'field1,field2'
+
Example::
precision=[0,2,3]
@@ -2725,6 +2743,9 @@
XYZ 6.32 -0.076
"""
+ if fields is not None:
+ r = rec_keep_fields(r, fields)
+
if cbook.is_numlike(precision):
precision = [precision]*len(r.dtype)
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