Chapter 2: Reading, Combining, and Managing Data for Later Analysis 55
The (edited) SAS log notes the correct entry of the subset data sets:
193 data SMSA_subset_weather2;
194 length city $ 27;
195 input city & JanTemp JulyTemp RelHum Rain;
196 datalines;
NOTE: The data set WORK.SMSA_SUBSET_WEATHER2 has 4 observations and 5 variables.
...
204 data SMSA_subset_demog2;
205 length city $ 27;
206 input city & Mortality Education PopDensity
207 pct_NonWhite pct_WC pop pop_per_house income;
208 datalines;
NOTE: The data set WORK.SMSA_SUBSET_DEMOG2 has 4 observations and 9 variables.
It confirms that the sorted versions of the two data sets have the same number of
observations and variables:
216 proc sort data=SMSA_subset_weather2; ...