Add column to the output of summary(glht).

On Jun 24, 2016, at 8:45 AM, John Sorkin <JSorkin at grecc.umaryland.edu> wrote:


I am trying to make the leap from an R users to an R aficionado . . .

I am trying to understand how add a column to the output of summary (and to understand how summary() works).

I have run a glmer
fit0 <- glmer(Fall ~ Group+(1|PID),family=poisson(link="log"),data=data[data[,"Group"]!=0,])

and I want to perform adjusted multiple comparisons:

SumTukey <- summary(glht(fit0, linfct= mcp(Group="Tukey")))

which gives beautiful output:

SumTukey

	 Simultaneous Tests for General Linear Hypotheses

Multiple Comparisons of Means: Tukey Contrasts


Fit: glmer(formula = Fall ~ Group + (1 | PID), data = data[data[, 
   "Group"] != 0, ], family = poisson(link = "log"))

Linear Hypotheses:
          Estimate Std. Error z value Pr(>|z|)
2 - 1 == 0   0.5320     0.5075   1.048    0.717
3 - 1 == 0   0.6554     0.5000   1.311    0.551
4 - 1 == 0   0.9357     0.4655   2.010    0.181
3 - 2 == 0   0.1234     0.4174   0.296    0.991
4 - 2 == 0   0.4037     0.3754   1.075    0.700
4 - 3 == 0   0.2803     0.3651   0.768    0.867
(Adjusted p values reported -- single-step method)

I want to add a column to the output (unadjusted p-values), but I don't see how this might be done. The output
is not a dataframe, nor is it a matix. 

class(SumTukey)

[1] "summary.glht" "glht"  

It is some class of objects that I don't understand and know nothing
about. How can I add a column to the output of SumTukey [a.k.a. summary(glht(fit0, linfct= mcp(Group="Tukey")))] ?

Thank you
John