Thank You!
I have installed the Algorithm::Cluster module. I have a very large distance matrix to solve. The function Algorithm::Cluster::treecluster(%param) seems to cluster genes or microarray.

%param=(
  data => \@m,         #Wanted array reference, but got a 
                       #reference to .
  mask =>'',           #Parameter 'mask' is not a valid  
                       #matrix, ignoring it.
  weight =>'',         #Parameter 'weight' does not point
                       #to an array, ignoring it.
  transpose = '',      #Parameter 'transpose' must be 
                       #either 0 or 1 (got '')
)
[download]

Any suggestion? Thanks

Edit by BazB: remove excess code tags.

Hmmm... usually folks ask questions about why their program isn't working. You already seem to understand why it isn't working. I have no idea what "complete linkage clustering" is, but you have already provided the errors above... so fix 'em and you will be on your way. In particular,
• 'weight' is pointing to an empty string... change it to an array as required.
• 'transpose' is pointing to an empty string... change it to 0 or 1.
• 'mask' is pointing to an empty string. Correct that.
• 'data' seems to be ok... it _is_ pointing to an arrayref... check @m and see if it is what the program expects.
--
when small people start casting long shadows, it is time to go to bed

the program should not have weights and mask.It is supposed to be empty!!! thats were i am stuck.
And i should not do any transpose. I have to cluster a large matrix of distance data--- not gene or microarray data.
And i do not know how to avaoid these errors. as for the data reference i did check!!

Any suggestions?

Edit by BazB: remove excess code tags.