ó áp7]c@sbdZddlmZdZdZdZdZdZdZ d Z d d „Z d „Z d „Zd S(sName of dataset.i˙˙˙˙(tutilstrestructuredtextsThis is public domain.s"Engel (1857) food expenditure datase This dataset was used in Koenker and Bassett (1982) and distributed alongside the ``quantreg`` package for R. Koenker, R. and Bassett, G (1982) Robust Tests of Heteroscedasticity based on Regression Quantiles; Econometrica 50, 43-61. Roger Koenker (2012). quantreg: Quantile Regression. R package version 4.94. http://CRAN.R-project.org/package=quantreg sEngel food expenditure data.sUData on income and food expenditure for 235 working class households in 1857 Belgium.sÝ:: Number of observations: 235 Number of variables: 2 Variable name definitions: income - annual household income (Belgian francs) foodexp - annual household food expenditure (Belgian francs) cCstjtƒd|ƒS(s^ Load the data and return 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/engel/data.pytload!scCs"tƒ}tj|ddddƒS(Nt endog_idxitexog_idx(t _get_dataRtprocess_pandastNone(tdata((s>lib/python2.7/site-packages/statsmodels/datasets/engel/data.pyR3s cCstjtdƒS(Ns engel.csv(Rtload_csvt__file__(((s>lib/python2.7/site-packages/statsmodels/datasets/engel/data.pyR 8sN(t__doc__tstatsmodels.datasetsRRt __docformat__t COPYRIGHTtTITLEtSOURCEt DESCRSHORTt DESCRLONGtNOTER RRR (((s>lib/python2.7/site-packages/statsmodels/datasets/engel/data.pyts