Apsrtable for sarlm class

Question

I like it apsrtable(), and it was a little easier for me to extend to other classes (in particular, I adapted it for objects mlogit. But for some reason, the function apsrtableSummary.sarlm()does not work just like the other hacks I wrote.

As a rule, we need to redefine the coefficient matrix so that we apsrtable()know where to find it. Code for this

"apsrtableSummary.sarlm" <- function (x){
  s <- summary(x)
  s$coefficients <- s$Coef
  return(s)
}

We also need to override modelInfofor the new class, for example:

setMethod("modelInfo", "summary.sarlm", function(x){
  env <- sys.parent()
  digits <- evalq(digits, envir=env)
  model.info <- list(
    "$\\rho$" = formatC(x$rho, format="f", digits=digits),
    "$p(\\rho)$" = formatC(x$LR1$p.value, format="f", digits=digits),
    "$N$" = length(x$fitted.values),
    "AIC" = formatC(AIC(x), format="f", digits=digits),
    "\\mathcal{L}" = formatC(x$LL, format="f", digits=digits)
  )
  class(model.info) <- "model.info"
  return(model.info)
})

However, after defining these two functions, the call apsrtable()does not display the coefficients (MWE uses the example from lagsarlmin the packet spdep).

library(spdep)
library(apsrtable)
data(oldcol)
COL.lag.eig <- lagsarlm(CRIME ~ INC + HOVAL, data=COL.OLD,
                         nb2listw(COL.nb, style="W"), method="eigen")
summary(COL.lag.eig)
# Load functions above
apsrtable(COL.lag.eig)

## OUTPUT ##
\begin{table}[!ht]
\caption{}
\label{} 
\begin{tabular}{ l D{.}{.}{2} } 
\hline 
  & \multicolumn{ 1 }{ c }{ Model 1 } \\ \hline
 %                           & Model 1 \\
 $\rho$.rho                 & 0.43   \\ 
$p(\rho)$.Likelihood ratio & 0.00   \\ 
$N$                         & 49     \\ 
AIC                         & 374.78 \\ 
\mathcal{L}                & -182.39 \\ \hline
 \multicolumn{2}{l}{\footnotesize{Standard errors in parentheses}}\\
\multicolumn{2}{l}{\footnotesize{$^*$ indicates significance at $p< 0.05 $}} 
\end{tabular} 
 \end{table}

, , , . , ,

apsrtableSummary(COL.lag.eig)$coefficients
              Estimate Std. Error   z value     Pr(>|z|)
(Intercept) 45.0792505 7.17734654  6.280768 3.369041e-10
INC         -1.0316157 0.30514297 -3.380762 7.228517e-04
HOVAL       -0.2659263 0.08849862 -3.004863 2.657002e-03

, . ?

Answer 1

, , , , , .

, coef summary.sarlm. , . .

setMethod("coef", "apsrtableSummary.sarlm", function(object) object$coefficients)

rho ( ).

apsrtableSummary.sarlm <- function (x){
  s <- summary(x)
  s$rholine<- c(unname(s$rho), s$rho.se, unname(s$rho/s$rho.se),
                unname(2 * (1 - pnorm(abs(s$rho/s$rho.se)))))
  s$Coef <- rbind(s$rholine, s$Coef)
  rownames(s$Coef)[1] <- "$\\rho$"
  s$coefficients <- s$Coef
  return(s)
}