{"part":"task","text":"# Datasets\nPass a dataset's id as the `dataset` argument.\n{\n \"id\": \"cigarettes\",\n \"rows\": 96,\n \"description\": \"Stock and Watson's cigarette consumption panel for the 48 continental U.S. states, 1985 and 1995, as distributed in the R package AER (data set CigarettesSW, served by Rdatasets); one row per state and year (96 rows). Columns: state; year; cpi, the consumer price index; population; packs, packs of cigarettes per capita; income, total state personal income (nominal); tax, the average state, federal and local excise taxes per pack (cents); price, the average price per pack including taxes (cents); taxs, the average excise taxes per pack including sales tax (cents). Added by the declared transforms: rprice = price / cpi, the real price; lrprice = log(rprice); lpacks = log(packs); rincome = income / population / cpi, real per capita income; lrincome = log(rincome); salestax = (taxs - tax) / cpi, the real general sales tax per pack; cigtax = tax / cpi, the real cigarette-specific tax per pack; and the intermediate columns income_pc and sales_tax_nominal.\",\n \"columns\": {\n  \"rownames\": \"int64\",\n  \"state\": \"str\",\n  \"year\": \"int64\",\n  \"cpi\": \"float64\",\n  \"population\": \"int64\",\n  \"packs\": \"float64\",\n  \"income\": \"int64\",\n  \"tax\": \"float64\",\n  \"price\": \"float64\",\n  \"taxs\": \"float64\",\n  \"rprice\": \"float64\",\n  \"lrprice\": \"float64\",\n  \"lpacks\": \"float64\",\n  \"income_pc\": \"float64\",\n  \"rincome\": \"float64\",\n  \"lrincome\": \"float64\",\n  \"sales_tax_nominal\": \"float64\",\n  \"salestax\": \"float64\",\n  \"cigtax\": \"float64\"\n }\n}"}