Power Analysis Across a Grid of Assumptions
Find requirements for target power (or other objective)
Plot requirements for achieving a target power as a function of assump...
Transform power_array into power_df
Evaluate function (iteratively) at a grid of input arguments
Plot the relation between assumed parameters and requirements for achi...
Print example
Refine or extend the result of PowerGrid
indexing with [ ] for class power_array[ ]: R:%20
Summary of object that has individual iterations saved.
Summary of power_grid object.
Print contents of an example
Add an example to an existing PowerPlot or GridPlot
Cut slice from array (typically of class power_array)
Find combination of parameters required for achieving a desired power ...
Evaluate a function across a grid of parameters. The function may be evaluated once, or many times for simulation. Parallel computing is facilitated. Utilities aim at performing analyses of power and sample size, allowing for easy search of minimum n (or min/max of any other parameter) to achieve a desired minimal level of power (or maximum of any other objective). Plotting functions are included that present the dependency of n and power in relation to further assumptions.
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