R help - Aug 2006 - Getting summary.lm to include data for coefficients that are NAs?

Is there a way to get the following code to include
liens where the coefficients are ?NA??

((summary(reg))$coefficients)

explanation:

Using a loop, I am running regressions on several
?subsets? of ?data1?.

?reg <- ( lm(lm(data1[,1] ~., data1[,2:l])) )?

My regression has 10 independent variables, and I
therefore expect 11 coefficients.
After each regression, I wish to save the coefficients
and standard errors of the coefficients in a table
with 22 columns.

I successfully extract the coefficients using the
following code:
?reg$coefficients?

I attempt to extract the standard erros using :

aperm((summary(reg))$coefficients)[2,]

((summary(reg))$coefficients)

My problem:
For some of my subsets, I am missing data for one or
more of the independent variables.  This of course
causes the coefficients and standard erros for this
variable to be ?NA?.

Is there a way to include the NA standard errors, so
that I have the same number of standard erros and
coefficients for each regression, and can then store
the coefficients and standard erros in my table of 22
columns?