Take a pumpresult and provide lists of parameters to explore various versions of the initial scenario.
Examples
pp <- pump_power(d_m = "d2.1_m2fc", MTP = "HO",
nbar = 200, J = 20, MDES = 0.2, M = 3,
Tbar = 0.50, alpha = 0.05, numCovar.1 = 5,
R2.1 = 0.1, ICC.2 = 0.05, rho = 0, tnum = 500)
gd <- update_grid( pp, J = c( 10, 20, 30 ) )