[R] Clustering In R. (rookie)

[paul murima]

Hi all.
I have  alrge microarray dat set that i would like to analyze using
hierarchical clustering. The problem is  when i use the command below,
> hc<- hclust(dist(array), "ave")
i get get this feedback...
Error in as.vector(x, mode) :
cannot coerce type 'closure' to vector of type 'any'

Can some one help me on how i can go about this operation.I am a
rookie in R and still learinig to find my way familising with the r
environment. Your help will be utmost appreciated.
--
BEST

Paul =