[R] multicomp plotting

[Nair, Murlidharan T]

I am trying to plot a large set of multiple comparison data from a csv file. I used to do in the following manner, but its giving me an error now, and I am not sure what correct. I have put the data in the code using the output from dput for completeness. Can anyone help me with my mistakes? Thanks

library(multicomp)
library(mvtnorm)
sig.data<-structure(list(X = structure(c(1L, 2L, 4L, 3L, 5L, 6L), .Label = c("100nM - 1000nM",
"10nM - 1000nM", "10nM - 100nM", "1nM - 1000nM", "1nM - 100nM",
"1nM - 10nM"), class = "factor"), Estimate = c(-0.1909671012,
-1.1180593892, -1.5985194558, -0.927092288, -1.4075523546, -0.4804600666
), lwr = c(-4.61934161589573, -5.54643390389573, -6.02689397049573,
-5.35546680269573, -5.83592686929573, -4.90883458129573), upr = c(4.23740741349573,
3.31031512549573, 2.82985505889574, 3.50128222669574, 3.02082216009574,
3.94791444809573), p.value = c(0.99851988940783, 0.790494603062747,
0.560121081996702, 0.866988985920687, 0.654497292526087, 0.977795552525069
)), .Names = c("X", "Estimate", "lwr", "upr", "p.value"), class = "data.frame", row.names = c("100nM - 1000nM",
"10nM - 1000nM", "1nM - 1000nM", "10nM - 100nM", "1nM - 100nM",
"1nM - 10nM"))

rownames(sig.data)<-sig.data[,1]
my.hmtest <- structure(list(
  Estimate = t(t(structure(sig.data[,"Estimate"],
     .Names = rownames(sig.data)))),
  conf.int = sig.data[,3:4],
  ctype = "ABCG1-0490"),
  class = "hmtest")
plot(my.hmtest)