conditional skewness and kurtosis

[doaa]

hi
Does anyone know how to gener a series of conditional skewness and kurtosis resulting from a regression?

[EViews Gareth]

I'm not sure I understand what you mean by this.

[doaa]

sorry about confusion. My question now is that I want to generate skewness series for the standardized residuals of a regression (eta). the formula is S(t) = Et-1(eta(t)^3)
where Et-1 is the conditional expectation at t-1 and S(t) is the conditional skewness at time t.
to be clear, i'd like to know how to write Et-1 in eviews