[ snipping original question, from the end ] On Tue, 01 Jul 2003 14:19:25 GMT, "Arthur J. Kendall" <[EMAIL PROTECTED]> wrote:
> COMPUTE GRAT = SUM.6 (g101, g102, g103r, g104, g105, g106r). > > many SPSS within-case statistical functions allow you to specify how > many of the argument-variables must be present. > > COMPUTE GRAT2 = mean.4 (g101, g102, g103r, g104, g105, g106r). > would give you a score that was on the original response metric of the > items as long as at least 4 of the items were present. > And for a pro-rated sum of 6, insisting that 4 are present, Compute GRAT2= 6* mean.4( G101 to g106r) . If you don't put the ".4" after the function, then GRAT2 will become Missing when any of the items are Missing. For that pro-rated sum of 6, rounded to one decimal point, Compute GRAT2= Rnd(60* mean.4( G101 to g106r) )/10 ) . -- Rich Ulrich, [EMAIL PROTECTED] http://www.pitt.edu/~wpilib/index.html "Taxes are the price we pay for civilization." Justice Holmes. . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
