B Z@s`dZdZdZdZdZdZdZdZdd lZ dd l m Z dd l mZmZd d ZddZddZd S)zName of dataset.ZrestructuredtextzThis is public domain.z"Engel (1857) food expenditure dataae 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 zEngel food expenditure data.zUData on income and food expenditure for 235 working class households in 1857 Belgium.z:: Number of observations: 235 Number of variables: 2 Variable name definitions: income - annual household income (Belgian francs) foodexp - annual household food expenditure (Belgian francs) N)utils)dirnameabspathcCst}tj|ddtdS)z Load the data and return a Dataset class instance. Returns ------- Dataset instance: See DATASET_PROPOSAL.txt for more information. rN) endog_idxexog_idxdtype) _get_dataduZprocess_recarrayfloat)datar >lib/python3.7/site-packages/statsmodels/datasets/engel/data.pyload&s rcCst}tj|ddtdS)Nr)rrr)rr Zprocess_recarray_pandasr )r r r r load_pandas4s rc Cs<ttt}t|dd}tj|ddtd}WdQRX|S)Nz /engel.csvrb,T)Z delimiternamesr)rr__file__opennpZ recfromtxtr )filepathfr r r r r;s  r)__doc__Z __docformat__Z COPYRIGHTZTITLEZSOURCEZ DESCRSHORTZ DESCRLONGZNOTEZnumpyrZstatsmodels.datasetsrr os.pathrrrrrr r r r s