Return formula used by a fitted model object.
# S3 method for class 'splm'
formula(x, ...)
# S3 method for class 'spautor'
formula(x, ...)
# S3 method for class 'spglm'
formula(x, ...)
# S3 method for class 'spgautor'
formula(x, ...)
Value
The formula used by a fitted model object.
Examples
spmod <- splm(z ~ water + tarp,
data = caribou,
spcov_type = "exponential", xcoord = x, ycoord = y
)
formula(spmod)
#> z ~ water + tarp
#> <environment: 0x000002725d865900>