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lines changed Original file line number Diff line number Diff line change
@@ -13,6 +13,10 @@ pandas 0.4.1
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This is a bug fix release
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**New features / modules**
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- Added new `DataFrame` methods `get_dtype_counts` and property `dtypes`
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**Bug fixes**
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- Fixed DataFrame constructor bug causing downstream problems (e.g. .copy()
@@ -648,19 +648,23 @@ def info(self, verbose=True, buf=None):
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% (_stringify(cols[0]),
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_stringify(cols[-1])))
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counts = self._get_dtype_counts()
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counts = self.get_dtype_counts()
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dtypes = ['%s(%d)' % k for k in sorted(counts.iteritems())]
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buf.write(u'dtypes: %s' % ', '.join(dtypes))
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def _get_dtype_counts(self):
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@property
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def dtypes(self):
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return self.apply(lambda x: x.dtype)
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def get_dtype_counts(self):
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counts = {}
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for _, series in self.iteritems():
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if series.dtype in counts:
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counts[series.dtype] += 1
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else:
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counts[series.dtype] = 1
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return counts
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return Series(counts)
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#----------------------------------------------------------------------
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# properties for index and columns
@@ -1543,6 +1543,12 @@ def test_info(self):
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self.frame.info(buf=io)
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self.tsframe.info(buf=io)
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def test_dtypes(self):
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self.mixed_frame['bool'] = self.mixed_frame['A'] > 0
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result = self.mixed_frame.dtypes
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expected = self.mixed_frame.dtypes
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assert_series_equal(result, expected)
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def test_append(self):
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begin_index = self.frame.index[:5]
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end_index = self.frame.index[5:]
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