d STB-26 July 1995 t .. Other STBs p dm31 Extension to the egen function rmiss() p dm32 Matching names in Stata p dm33 Elapsed days using 30-day months p dm34 Constructing axis labels for dates p ip8 An enhanced for command p sg35_1 Robust tests for equality of variance p sg37_1 Orthogonal polynomials p sg40 Testing for the mean of a skewed variable p sg41 Random-effects probit p sg42 Plotting pred. values from linear & logistic reg. models p snp6_1 Averaged shifted hist., WARPing, and kernel density est. p snp8_1 Robust scatterplot smoothing: enhancements to Stata's ksm