ó áp7]c@sbdZddlmZdZdZeZdZdZdZ dZ d d „Z d „Z d „Zd S( sStack loss dataiÿÿÿÿ(tutilstrestructuredtextsThis is public domain. sw Brownlee, K. A. (1965), "Statistical Theory and Methodology in Science and Engineering", 2nd edition, New York:Wiley. s(Stack loss plant data of Brownlee (1965)sÂThe stack loss plant data of Brownlee (1965) contains 21 days of measurements from a plant's oxidation of ammonia to nitric acid. The nitric oxide pollutants are captured in an absorption tower.s³:: Number of Observations - 21 Number of Variables - 4 Variable name definitions:: STACKLOSS - 10 times the percentage of ammonia going into the plant that escapes from the absoroption column AIRFLOW - Rate of operation of the plant WATERTEMP - Cooling water temperature in the absorption tower ACIDCONC - Acid concentration of circulating acid minus 50 times 10. cCstjtƒd|ƒS(sj Load the stack loss data 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((sBlib/python2.7/site-packages/statsmodels/datasets/stackloss/data.pytload#scCstƒ}tj|ddƒS(s® Load the stack loss data and returns a Dataset class instance. Returns ------- Dataset instance: See DATASET_PROPOSAL.txt for more information. t endog_idxi(t _get_dataRtprocess_pandas(tdata((sBlib/python2.7/site-packages/statsmodels/datasets/stackloss/data.pyR4s cCstjtdƒjtƒS(Ns stackloss.csv(Rtload_csvt__file__tastypetfloat(((sBlib/python2.7/site-packages/statsmodels/datasets/stackloss/data.pyRAsN(t__doc__tstatsmodels.datasetsRRt __docformat__t COPYRIGHTtTITLEtSOURCEt DESCRSHORTt DESCRLONGtNOTEtNoneRRR(((sBlib/python2.7/site-packages/statsmodels/datasets/stackloss/data.pyts