How can I compute multiple boxplots with vectors of different length with a variable number of vectors??

Several people have previously provided solutions to plotting boxplots with different length vectors however is there a general solution for when the number of vectors is variable such that:

if C is a cell of length K containing doubles of various lengths I would like a

function GC, groups = forbox(C, K)

where GC and groups can then be used in:

boxplot(GC, groups)

[Jan]

I do not understand the question. What does the function "GC" do?