d STB-34 sts12. A periodogram-based test for white noise. d STB insert by H. Joseph Newton, Texas A&M University. d Support: jnewton@@stat.tamu.edu d After installation, see help ^wntestf^. f sts12/_crcchkt.ado f sts12/bartcdf.ado f sts12/bartcdf.hlp f sts12/bartq.ado f sts12/bartq.hlp f sts12/gphdt.ado f sts12/gphsave.ado f sts12/wntestf.ado f sts12/wntestf.hlp