[R] Trouble with glm() .... non-integer #successes in a binomial glm

[Smith, Phil]

Hi R-people:

When I use the command to fit a model with an intercept, only:

glm ( formula=haspdata ~ 1, data=dat, family=binomial, weights=
dat$hy.wgt.s, subset=(dat$haspdat0!=3) )

I get the message:

Warning message:
non-integer #successes in a binomial glm! in: eval(expr, envir, enclos) 

Does anyone know what this means?? The data for this command is listed
below.

Thanks,
Phil Smith
CDC

dat.hy.wgts.s
Here is my data:
> table( dat$haspdata )
    0     1 
21890  9097 
> is.integer( dat$haspdata )
[1] TRUE

dat$hy.wgt.s
> summary( dat$hy.wgt.s)
    Min.  1st Qu.   Median     Mean  3rd Qu.     Max. 
0.003374 0.657700 0.874200 1.000000 1.204000 8.557000 


dat$haspdat0
> table(dat$haspdat0)
    1     2     3 
21890  8989   108 

> is.integer( dat$haspdat0 )
[1] TRUE