power, cluster. Combine multiple curves onto one graph

[Jack Reimer]

I am running some power calculations, some of which are to include clustering.

For example, I one set that is unclustered produces a graph with two curves

power twoproportions (0.344 0.4), n(500(500)4000) power(0.8) ///
    graph(x(N) y(delta)    ///
    ylab(#6) xlab(#10, angle(45)))

However, when I attempt to cluster, I get less sensical output when I attempt a similar figure using clusters

power twoproportions 0.4 0.344, k1(50) k2(10(10)90) m1(29) m2(29) graph(y(delta))

Is there a way that I can combine the following figures onto one pane?

1. Curve one

power twoproportions 0.344, ///
    k1(50) k2(10(10)90) m1(26) m2(26) power(0.8) ///
    graph(y(delta))

and curve 2?

power twoproportions 0.344, ///
    k1(50) k2(10(10)90) m1(26) m2(26) power(0.8) ///
    graph(y(delta))

I feel like there must be a simple response that I am simply missing.

Thank you

[Leonardo Guizzetti]

You need to add the parentheses around the proportion -p1- so that Stata knows which syntax you mean.

power twoproportions (.4 .344), k1(50) k2(10(10)90) m1(26) m2(26) power(0.8) graph(y(delta)) cluster