The inverse of winnowing: a FORTRAN subroutine and discussion of unwinnowing discrete data Goodman and Kruskal's TAU-B Statistics: A Fortran-77 Subroutine.ĮRIC Educational Resources Information CenterĪn algorithm and associated FORTRAN-77 computer subroutine are described for computing Goodman and Kruskal's tau-b statistic along with the associated nonasymptotic probability value under the null hypothesis tau=O. The program is now operational and can be run on any TEKTRONICX graphics terminal that uses a DEC Real-Time-11 (RT-11) operating system. The subroutines were written in FORTRAN IV for the LSI-11 Digital equipment Corporation (DEC) Computer. These are: (1) point plot, (2) line plot and (3) point-line plot. The general requirements for the program were as follows: (1) all subroutines shall be callable through a FORTRAN source program (2) all graphs shall fill one page and be properly labeled (3) there shall be options for linear axes and logarithmic axes (4) each axis shall have tick marks equally spaced with numeric values printed at the beginning tick mark and at the last tick mark and (5) there shall be three options for plotting. The computer program known as PLOTRW was custom made to satisfy some of the graphics requirements for the data collected in the Space Plasma Laboratory at the Johnson Space Center (JSC). FORTRAN plotting subroutines for the space plasma laboratory
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