Power Configuration

Key	Type/default	Contract
`schema_version`	string, `1.0`	Config version.
`data_path`	string	Long CSV.
`date_col`, `location_col`, `outcome_col`	strings	Source columns.
`treatment_locations`	list	Treated units; numeric-looking strings are coerced to integers.
`treatment_date`	string	Split used to estimate the pre-period DGP.
`duration`	list of integers	Simulated post-period lengths. Alias: `test_durations`.
`effect_sizes`	list of floats	Relative injected lifts. Alias: `effect_size`.
`alpha`	float, `0.05`	Detection threshold; must be in `(0, 1)`.
`target_power`	float, `0.80`	CLI MDE/report threshold; must be in `(0, 1]`.
`n_simulations`	integer, `1000`	Repetitions per grid row.
`effect_pattern`	string, `constant`	`constant`, `immediate`, `ramp`, or `decay`.
`random_seed`	integer or null	Reproducible configuration seed.
`power_dgp_rank`	integer or null	Explicit SVD rank.
`power_dgp_max_rank`	integer, `5` in CLI	Automatic rank cap.
`power_failure_rate_threshold`	float, `0.20`	Maximum valid row failure rate.
`sparse_sc_max_n_pl`	positive integer, `100`	Requested placebo cap.
`parallel`, `n_jobs`	boolean, integer	Grid-level CPU parallelism.
`use_gpu`	boolean	Optional unseeded DGP acceleration request.
`output_dir`	string	CSV and plot directory.

constant and immediate currently produce the same full effect in every period. ramp moves linearly from zero to the full effect. decay applies the full effect initially and a hard-coded exponential decay rate of 0.1 per period. Unknown patterns fail.

The CLI power path forwards a deliberately narrower SparseSC configuration than inference: fast estimation, placebo cap, DGP controls, seed, GPU request, and progress state. Inference options such as cooldown, assumption checks, CI level, and lasso controls are not inherited.