st: how to exclude an observation when calculating the median of a group

[Nahla Betelmal <nahlaib@gmail.com>]

Dear Statalist members,

I wonder how to exclude an observation when calculating the median of
a group. In other words I want to calculate the median of variable X
for firms in a specific year and specific industry, however, I want to
exclude each firm observation when calculating the median.

if there are 6 firms in a certain  industry/year. The median will be
calculated based on the other 4 non missing firms observations

Firm   VarX    Mediam_VarX
1         10          based on firms 2,3,4,5 only
2          8           based on firms 1,3,4,5 only
3         12          based on firms 1,2,4,5 only
4          14         based on firms 1,2,3,5 only
5         10           based on firms 1,2,3,4 only
6        missing            .

I am stuck with the command for the part of excluding each firm
observation, It would be great if someone can help in that.

Many thanks in advance

Nahla Betelmal
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