Generalized RSI

[David Borger <borger@xxxxxxxxxxxxx>]

Please correct me if  I'm wrong, but it seems to me that the RSI
function in EL expects to receive a price series as its first input and
will not settle for a variable or array defined earlier in the code by
the user.

Assuming that is correct, has anyone written a generalized RSI function
in EL--i.e. one which has the same mathematical form, which will give
the same output if a price series is input, and which will work for any
input data?

Thanks in advance

Dave