How to do a Power proc with three group means

plssssshelp — Wed, 06 May 2020 04:51:17 GMT

obviously this says twosamplemeans so this wouldn't work, what would I change it to in order to be able to use three sample means?

proc power;

twosamplemeans test=diff sides=1

groupmeans= 37 | 35 | 28

stddev = 4.5

groupweights = (1 1 1)

ntotal = 24

Re: How to do a Power proc with three group means

ed_sas_member — Wed, 06 May 2020 07:36:03 GMT

It seems that you want to conduct a one-way ANOVA power analysis. Is that right?

In this case you can use the keyword 'onewayanova'.

NB: you need to specify an option to be designated as the result.

E.g. if you're looking at power, specify power=.

Best,

proc power;
	onewayanova
	test=overall
	groupmeans=37 | 35 | 28
	stddev=4.5 
	groupweights=(1 1 1)
	ntotal=24
	power=.
	;
run;