Fix incorrect indices in melt() call, causing reshape2 to drop metadata from the dfs
implement unique permutations algorithm for comparative regression.
comment out graphing function and simplify
missing closes
explicitly coerce into dataframe
remove proxy - the subsetting if-checks in graphing.fun make excluding proxies unnecessary.
duplicate value
matching against self
fix incorrect subsetting with objects of non-equal length
simply use the first value in x$variable when constructing ggtitle()