STOCKS contains stock prices for two competing kite manufacturers. The
prices are recorded three times a day: at opening, at noon, and at closing,
on two days. Notice that the input data set contains duplicate values for
the Date variable.
data stocks;
input Company $14. Date $ Time $ Price;
datalines;
Horizon Kites jun11 opening 29
Horizon Kites jun11 noon 27
Horizon Kites jun11 closing 27
Horizon Kites jun12 opening 27
Horizon Kites jun12 noon 28
Horizon Kites jun12 closing 30
SkyHi Kites jun11 opening 43
SkyHi Kites jun11 noon 43
SkyHi Kites jun11 closing 44
SkyHi Kites jun12 opening 44
SkyHi Kites jun12 noon 45
SkyHi Kites jun12 closing 45
;