st: ameans and add(#)

[Garry Anderson <g.anderson@unimelb.edu.au>]

Hi,

If one includes the add(#) option to -ameans- so that # is added to a 
variable and then ameans calculates the geometric mean and its 95%CI, 
should one subtract # (or some other value) from the geometric mean and 
95%CI ?

If the lower limit of the 95%CI is below zero after subtracting #, the 
lower limit would presumably be truncated to zero.

Kind regards, Garry

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