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CGLOGGEN

CGLOGGEN
  This function creates an evenly spaced vector of points in log space.

Categories


    Math, Utilities
   

Returns


    A vector of values, evenly spaced along a log axis.
   

Params


    numpts: in, optional, type=integer, default=10
      The number of points desired in the output vector.
     

Keywords


    double: in, optional, type=boolean, default=0
        Set this keyword to return the values as double precision values.
        Otherwise, floating point values are returned.
    finish: in, optional, type=float/double, default=100
        The ending value of the vector. The output values are evenly spaced
        between `Start` and `Finish`. This value must be a positive number.
    start: in, optional, type=float/double, default=1
        The starting value of the vector. The output values are evenly spaced
        between `Start` and `Finish`. This value must be a positive number.
         

Examples


    To create 10 values evenly spaced between 5 and 15::
      points = cgLogGen(10, Start=5, Finish=150)
      cgPlot, points, PSym=2, /YLog
     

Author


    FANNING SOFTWARE CONSULTING::
        David W. Fanning
        1645 Sheely Drive
        Fort Collins, CO 80526 USA
        Phone: 970-221-0438
        E-mail: david@idlcoyote.com
        Coyote's Guide to IDL Programming: http://www.idlcoyote.com

History


    Change History::
        Written, 17 January 2012. DWF.

Copyright


    Copyright (c) 2012, Fanning Software Consulting, Inc.



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