Summarize a synthdid object

Usage

# S3 method for class 'synthdid_estimate'
summary(
  object,
  weight.digits = SYNTHDID_WEIGHT_DIGITS_DEFAULT,
  fast = FALSE,
  ...
)

Arguments

object: The object to summarize
weight.digits: The number of digits to use when displaying weights (omega, lambda)
fast: Be fast but less accurate, e.g. jackknife instead of bootstrap se estimate
...: Additional arguments (currently ignored).

Value

A summary object with estimate, standard error, weights, dimensions, and convergence info.

Examples

# \donttest{
data(california_prop99)
setup <- panel.matrices(california_prop99)
tau.hat <- synthdid_estimate(setup$Y, setup$N0, setup$T0)

# Detailed summary with standard error
summary(tau.hat)
#> Treatment Effect Estimate:
#>         Estimate         
#> treated    -15.6 NA NA NA
#> 
#> Dimensions:
#>                          Value 
#>  Treated units:           1.000
#>  Control units:          38.000
#>  Effective controls:     16.388
#>  Post-treatment periods: 12.000
#>  Pre-treatment periods:  19.000
#>  Effective periods:       2.784
#> 
#> Top Control Units (omega weights):
#>               Weight
#> Nevada         0.124
#> New Hampshire  0.105
#> Connecticut    0.078
#> Delaware       0.070
#> Colorado       0.058
#> 
#> Top Time Periods (lambda weights):
#>      Weight
#> 1988  0.427
#> 1986  0.366
#> 1987  0.206
#> 
#> Convergence Status:
#>   Overall: NOT CONVERGED
#>   Lambda:  ✗ (10000/10000 iterations, 100.0% utilization)
#>   Omega:   ✗ (10000/10000 iterations, 100.0% utilization)
#> 
#>   Recommendation: Consider increasing max.iter or relaxing min.decrease.
#>   Use synthdid_convergence_info() for detailed diagnostics.

# Fast summary (uses jackknife instead of bootstrap)
summary(tau.hat, fast = TRUE)
#> Treatment Effect Estimate:
#>         Estimate         
#> treated    -15.6 NA NA NA
#> 
#> Dimensions:
#>                          Value 
#>  Treated units:           1.000
#>  Control units:          38.000
#>  Effective controls:     16.388
#>  Post-treatment periods: 12.000
#>  Pre-treatment periods:  19.000
#>  Effective periods:       2.784
#> 
#> Top Control Units (omega weights):
#>               Weight
#> Nevada         0.124
#> New Hampshire  0.105
#> Connecticut    0.078
#> Delaware       0.070
#> Colorado       0.058
#> 
#> Top Time Periods (lambda weights):
#>      Weight
#> 1988  0.427
#> 1986  0.366
#> 1987  0.206
#> 
#> Convergence Status:
#>   Overall: NOT CONVERGED
#>   Lambda:  ✗ (10000/10000 iterations, 100.0% utilization)
#>   Omega:   ✗ (10000/10000 iterations, 100.0% utilization)
#> 
#>   Recommendation: Consider increasing max.iter or relaxing min.decrease.
#>   Use synthdid_convergence_info() for detailed diagnostics.
# }