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add prep_field method to histogram to allow for custom labeling and grouping of values

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Jeremy Carbaugh 2011-09-19 14:41:54 -04:00
parent cc42012daf
commit 638183b562
1 changed files with 4 additions and 1 deletions
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saucebrush/stats.py
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@ -195,10 +195,14 @@ class Histogram(StatsFilter):
self._data = {} self._data = {}
def process_field(self, item): def process_field(self, item):
item = self.prep_field(item)
if item not in self._data: if item not in self._data:
self._data[item] = 0 self._data[item] = 0
self._data[item] += 1 self._data[item] += 1
def prep_field(self, item):
return item
def value(self): def value(self):
return self._data.copy() return self._data.copy()
@ -208,4 +212,3 @@ class Histogram(StatsFilter):
key_str = str(key).ljust(self.label_length)[:self.label_length] key_str = str(key).ljust(self.label_length)[:self.label_length]
output += "%s %s\n" % (key_str, "*" * self._data[key]) output += "%s %s\n" % (key_str, "*" * self._data[key])
return output return output