SAMPLE 1 253 * The variable SPY is the daily closing price for the symbol SPY. READ (spy.txt) DATE OPEN HI LOW SPY VOLUME TIMEFMT %Y%m%d AXISFMT %m/%d * Set sample period from 1999/03/03 to 1999/12/31. SAMPLE 1 212 STOCK OPEN HI LOW SPY VOLUME DATE / GRAPHVOL AXISFMT STOP