Hi there,

I would like to solve the following equation in R  to estimate 'a'. I have
the amp, d, x and y.

amp*y^2 = 2*a*(1-a)*(-a*d+(1-a)*x)^2

test data:
   amp = 0.2370 y=
0.0233 d=
0.002 x=
0.091
Can anyone suggest how I can set this up?

Thanks,
Diviya

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