“““This?file?contains?code?for?use?with?“Think?Stats“
by?Allen?B.?Downey?available?from?greenteapress.com

Copyright?2010?Allen?B.?Downey
License:?GNU?GPLv3?http://www.gnu.org/licenses/gpl.html
“““

import?math
import?sys
import?survey
import?thinkstats


class?Respondents（survey.Table）:
????“““Represents?the?respondent?table.“““

????def?ReadRecords（self?data_dir=‘.‘?n=None）:
????????filename?=?self.GetFilename（）
????????self.ReadFile（data_dir
??????????????????????filename
??????????????????????self.GetFields（）?
??????????????????????survey.Respondent
??????????????????????n）
????????self.Recode（）

????def?GetFilename（self）:
????????“““Get?the?name?of?the?data?file.

????????This?function?can?be?overridden?by?child?classes.

????????The?BRFSS?data?is?available?from?thinkstats.com/CDBRFS08.ASC.gz

????????“““
????????return?‘CDBRFS08.ASC.gz‘

????def?GetFields（self）:
????????“““Returns?a?tuple?specifying?the?fields?to?extract.
????????
????????BRFSS?codebook?
????????http://www.cdc.gov/brfss/technical_infodata/surveydata/2008.htm

????????The?elements?of?the?tuple?are?field?start?end?case.

????????????????field?is?the?name?of?the?variable
????????????????start?and?end?are?the?indices?as?specified?in?the?NSFG?docs
????????????????case?is?a?callable?that?converts?the?result?to?int?float?etc.
????????“““
????????return?[
????????????（‘age‘?101?102?int）
????????????（‘weight2‘?119?122?int）
????????????（‘wtyrago‘?127?130?int）
????????????（‘wtkg2‘?1254?1258?int）
????????????（‘htm3‘?1251?1253?int）
????????????（‘sex‘?143?143?int）
????????????]

????def?Recode（self）:
????????“““Recode?variables?that?need?cleaning.“““

????????def?CleanWeight（weight）:
????????????if?weight?in?[7777?9999]:
????????????????return?‘NA‘
????????????elif?weight?????????????????return?weight?/?2.2
????????????elif?9000?????????????????return?weight?-?9000
????????????else:
????????????????return?weight

????????for?rec?in?self.records:
????????????#?recode?wtkg2
????????????if?rec.wtkg2?in?[‘NA‘?99999]:
????????????????rec.wtkg2?=?‘NA‘
????????????else:
????????????????rec.wtkg2?/=?100.0

????????????#?recode?wtyrago
????????????rec.weight2?=?CleanWeight（rec.weight2）
????????????rec.wtyrago?=?CleanWeight（rec.wtyrago）

????????????#?recode?htm3
????????????if?rec.htm3?==?999:
????????????????rec.htm3?=?‘NA‘

????????????#?recode?age
????????????if?rec.age?in?[7?9]:
????????????????rec.age?=?‘NA‘


????def?SummarizeHeight（self）:
????????“““Print?summary?statistics?for?male?and?female?height.“““

????????#?make?a?dictionary?that?maps?from?gender?code?to?list?of?heights
????????d?=?{1:[]?2:[]?‘all‘:[]}
????????[d[r.sex].append（r.htm3）?for?r?in?self.records?if?r.htm3?!=?‘NA‘]
????????[d[‘all‘].append（r.htm3）?for?r?in?self.records?if?r.htm3?!=?‘NA‘]
????????
????????print?‘Height?（cm）:‘
????????print?‘key?n?????mean?????var????sigma?????cv‘
????????for?key?t?in?d.iteritems（）:
????????????mu?var?=?thinkstats.TrimmedM

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????2374789??2018-01-02?23:12??think?bayes.pdf
?????目錄???????????0??2016-02-23?03:21??ThinkBayes-master\
?????文件?????????303??2016-02-23?03:21??ThinkBayes-master\.gitignore
?????目錄???????????0??2016-02-23?03:21??ThinkBayes-master\book\
?????文件????????4440??2016-02-23?03:21??ThinkBayes-master\book\back.png
?????文件??????330287??2016-02-23?03:21??ThinkBayes-master\book\book.tex
?????目錄???????????0??2016-02-23?03:21??ThinkBayes-master\book\figs\
?????文件???????25355??2016-02-23?03:21??ThinkBayes-master\book\figs\dungeons1.eps
?????文件???????12370??2016-02-23?03:21??ThinkBayes-master\book\figs\dungeons1.pdf
?????文件???????21019??2016-02-23?03:21??ThinkBayes-master\book\figs\dungeons2.eps
?????文件???????11148??2016-02-23?03:21??ThinkBayes-master\book\figs\dungeons2.pdf
?????文件???????24262??2016-02-23?03:21??ThinkBayes-master\book\figs\dungeons3.eps
?????文件???????10770??2016-02-23?03:21??ThinkBayes-master\book\figs\dungeons3.pdf
?????文件???????20589??2016-02-23?03:21??ThinkBayes-master\book\figs\euro1.eps
?????文件???????10363??2016-02-23?03:21??ThinkBayes-master\book\figs\euro1.pdf
?????文件???????23991??2016-02-23?03:21??ThinkBayes-master\book\figs\euro2.eps
?????文件???????11829??2016-02-23?03:21??ThinkBayes-master\book\figs\euro2.pdf
?????文件???????23968??2016-02-23?03:21??ThinkBayes-master\book\figs\euro3.eps
?????文件???????11636??2016-02-23?03:21??ThinkBayes-master\book\figs\euro3.pdf
?????文件???????29326??2016-02-23?03:21??ThinkBayes-master\book\figs\hockey0.eps
?????文件???????13851??2016-02-23?03:21??ThinkBayes-master\book\figs\hockey0.pdf
?????文件???????29881??2016-02-23?03:21??ThinkBayes-master\book\figs\hockey1.eps
?????文件???????15267??2016-02-23?03:21??ThinkBayes-master\book\figs\hockey1.pdf
?????文件???????20027??2016-02-23?03:21??ThinkBayes-master\book\figs\hockey2.eps
?????文件???????10655??2016-02-23?03:21??ThinkBayes-master\book\figs\hockey2.pdf
?????文件???????23879??2016-02-23?03:21??ThinkBayes-master\book\figs\hockey3.eps
?????文件???????12557??2016-02-23?03:21??ThinkBayes-master\book\figs\hockey3.pdf
?????文件???????27643??2016-02-23?03:21??ThinkBayes-master\book\figs\jaynes1.eps
?????文件???????14127??2016-02-23?03:21??ThinkBayes-master\book\figs\jaynes1.pdf
?????文件???????23929??2016-02-23?03:21??ThinkBayes-master\book\figs\jaynes2.eps
?????文件???????12614??2016-02-23?03:21??ThinkBayes-master\book\figs\jaynes2.pdf
............此處省略201個文件信息