ó áp7]c@sbdZddlmZdZdZeZdZdZeZ dZ d d„Z d „Z d „Zd S( s6Spector and Mazzeo (1980) - Program Effectiveness Datai˙˙˙˙(tutilstrestructuredtextsMUsed with express permission of the original author, who retains all rights. s  http://pages.stern.nyu.edu/~wgreene/Text/econometricanalysis.htm The raw data was downloaded from Bill Greene's Econometric Analysis web site, though permission was obtained from the original researcher, Dr. Lee Spector, Professor of Economics, Ball State University.s^Experimental data on the effectiveness of the personalized system of instruction (PSI) programsj:: Number of Observations - 32 Number of Variables - 4 Variable name definitions:: Grade - binary variable indicating whether or not a student's grade improved. 1 indicates an improvement. TUCE - Test score on economics test PSI - participation in program GPA - Student's grade point average cCstjtƒd|ƒS(sj Load the Spector dataset and returns a Dataset class instance. Parameters ---------- as_pandas : bool Flag indicating whether to return pandas DataFrames and Series or numpy recarrays and arrays. If True, returns pandas. Returns ------- Dataset instance: See DATASET_PROPOSAL.txt for more information. t as_pandas(tdutas_numpy_datasett load_pandas(R((s@lib/python2.7/site-packages/statsmodels/datasets/spector/data.pytload%scCstƒ}tj|ddƒS(sŽ Load the Spector dataset and returns a Dataset class instance. Returns ------- Dataset instance: See DATASET_PROPOSAL.txt for more information. t endog_idxi(t _get_dataRtprocess_pandas(tdata((s@lib/python2.7/site-packages/statsmodels/datasets/spector/data.pyR7s cCsYtjtdddƒ}tj|ƒ}|jdd…ddddgf}|jtƒS(Ns spector.csvtseps\siiii(Rtload_csvt__file__tstrip_column_namestiloctastypetfloat(R ((s@lib/python2.7/site-packages/statsmodels/datasets/spector/data.pyRDs%N(t__doc__tstatsmodels.datasetsRRt __docformat__t COPYRIGHTtTITLEtSOURCEt DESCRSHORTt DESCRLONGtNOTEtNoneRRR(((s@lib/python2.7/site-packages/statsmodels/datasets/spector/data.pyts