Title

    dftolgraph -- Graphs for distribution-free tolerance intervals

Syntax

        dftolgraph , [conf(#) r(numlist)]

    options       Description
    -------------------------------------------------------------------------
      conf(#)     set confidence level of the tolerance interval; default is
                    conf(95)
      r(numlist)  set the number of blocks removed; default is r(1 2 3 4 5 7
                    10 15 20 30 50 100 200 400)
    -------------------------------------------------------------------------

Description

    dftolgrah produces graphs showing the relationship between sample size
    (from 10 up to 1000), number of blocks removed (<= 500), confidence level
    and percentage of the population contained in distribution-free tolerance
    intervals. The graphs displayed are similar in spirit to those shown in
    Murphy (1948) or Hahn and Meeker (1991). See also dftol and dftolss.

Options

    conf(#) specifies the confidence level of the tolerance interval as a
        percentage. The default is conf(95), meaning a 95% confidence level.

    r(numlist) specifies the number of blocks removed. The default is r(1 2 3
        4 5 7 10 15 20 30 50 100 200 400). The maximal length of the numlist
        is 14 and the maximum allowable value of any component is 500.

Examples 

 . dftolgraph
 . dftolgraph, c(90) r(5(20)85)

Author

    Ignacio López de Ullibarri
    Department of Mathematics
    University of A Coruña, Spain
    E-mail: ilu@udc.es

References

    Hahn G and Meeker WQ (1991), Statistical Intervals, New York: Wiley &
        Sons

    Murphy RB (1948), Non-parametric tolerance limits, Annals of Mathematical