Plot fitted model diagnostics such as residuals vs fitted values, quantile-quantile, scale-location, Cook's distance, residuals vs leverage, Cook's distance vs leverage, and a fitted spatial covariance function.
Usage
# S3 method for spmod
plot(x, which, ...)
Arguments
- x
- which
An integer vector taking on values between 1 and 7, which indicates the plots to return. Available plots are described in Details. If
which
has length greater than one, additional plots are stepped through in order using<Return>
. The default forsplm()
fitted model objects iswhich = c(1, 2, 7)
. The default forspautor()
fitted model objects iswhich = c(1, 2)
.- ...
Other arguments passed to other methods.
Details
For splm()
and spautor()
, the values of which
make the
corresponding plot:
1: Standardized residuals vs fitted values (of the response)
2: Normal quantile-quantile plot of standardized residuals
3: Scale-location plot of standardized residuals
4: Cook's distance
5: Standardized residuals vs leverage
6: Cook's distance vs leverage
For splm()
, there is an additional value of which
:
7: Fitted spatial covariance function vs distance