tidy.sarlm: Tidying methods for spatially autoregressive models

In broom: Convert Statistical Objects into Tidy Tibbles

Tidying methods for spatially autoregressive models

Description

These methods tidy the coefficients of spatial autoregression models generated by functions in the spatialreg package.

Usage

## S3 method for class 'sarlm'
tidy(x, conf.int = FALSE, conf.level = 0.95, ...)

Arguments

x	An object returned from spatialreg::lagsarlm() or spatialreg::errorsarlm().
conf.int	Logical indicating whether or not to include a confidence interval in the tidied output. Defaults to FALSE.
conf.level	The confidence level to use for the confidence interval if conf.int = TRUE. Must be strictly greater than 0 and less than 1. Defaults to 0.95, which corresponds to a 95 percent confidence interval.
...	Additional arguments. Not used. Needed to match generic signature only. Cautionary note: Misspelled arguments will be absorbed in ..., where they will be ignored. If the misspelled argument has a default value, the default value will be used. For example, if you pass conf.lvel = 0.9, all computation will proceed using conf.level = 0.95. Two exceptions here are: tidy() methods will warn when supplied an exponentiate argument if it will be ignored. augment() methods will warn when supplied a newdata argument if it will be ignored.

Value

A tibble::tibble() with columns:

conf.high	Upper bound on the confidence interval for the estimate.
conf.low	Lower bound on the confidence interval for the estimate.
estimate	The estimated value of the regression term.
p.value	The two-sided p-value associated with the observed statistic.
statistic	The value of a T-statistic to use in a hypothesis that the regression term is non-zero.
std.error	The standard error of the regression term.
term	The name of the regression term.

See Also

tidy(), spatialreg::lagsarlm(), spatialreg::errorsarlm(), spatialreg::sacsarlm()

Other spatialreg tidiers: augment.sarlm(), glance.sarlm()

Examples

# load libraries for models and data
library(spatialreg)
library(spdep)

# load data
data(oldcol, package = "spdep")

listw <- nb2listw(COL.nb, style = "W")

# fit model
crime_sar <-
  lagsarlm(CRIME ~ INC + HOVAL,
    data = COL.OLD,
    listw = listw,
    method = "eigen"
  )

# summarize model fit with tidiers
tidy(crime_sar)
tidy(crime_sar, conf.int = TRUE)
glance(crime_sar)
augment(crime_sar)

# fit another model
crime_sem <- errorsarlm(CRIME ~ INC + HOVAL, data = COL.OLD, listw)

# summarize model fit with tidiers
tidy(crime_sem)
tidy(crime_sem, conf.int = TRUE)
glance(crime_sem)
augment(crime_sem)

# fit another model
crime_sac <- sacsarlm(CRIME ~ INC + HOVAL, data = COL.OLD, listw)

# summarize model fit with tidiers
tidy(crime_sac)
tidy(crime_sac, conf.int = TRUE)
glance(crime_sac)
augment(crime_sac)

broom documentation built on Sept. 30, 2024, 9:29 a.m.