Difference between revisions of "Zipf Command"

Revision as of 17:16, 7 October 2017

Zipf( <Number of Elements>, <Exponent> ): Returns a bar graph of a Zipf distribution.; Parameters:; Number of Elements: number of elements whose rank we study; Exponent: exponent characterizing the distribution
Zipf( <Number of Elements>, <Exponent> , <Boolean Cumulative> ): Returns a bar graph of a Zipf distribution when Cumulative = false.; Returns a graph of a cumulative Zipf distribution when Cumulative = true.; First two parameters are same as above.
Zipf( <Number of Elements>, <Exponent> , <Variable Value v>, <Boolean Cumulative> ): Let X be a Zipf random variable.; Returns P( X = v) when Cumulative = false.; Returns P( X ≤ v) when Cumulative = true.; First two parameters are same as above.

Example:

Zipf[ 10, 1 , 5, false] yields 0.07 in the

Algebra View and \frac{504}{7381} in the

CAS View.

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 <noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|cas=true|probability}}
-;Zipf[ <Number of Elements>, <Exponent> ]
+;Zipf( <Number of Elements>, <Exponent> )
 :Returns a bar graph of a [[w:Zipf's law|Zipf distribution]].
 : Parameters:
 :''Number of Elements'': number of elements whose rank we study
 :''Exponent'': exponent characterizing the distribution
-;Zipf[ <Number of Elements>, <Exponent> , <Boolean Cumulative> ]
+;Zipf( <Number of Elements>, <Exponent> , <Boolean Cumulative> )
 :Returns a bar graph of a ''Zipf distribution'' when ''Cumulative'' = false.
 :Returns a graph of a cumulative Zipf distribution when ''Cumulative'' = true.
 :First two parameters are same as above.
-;Zipf[ <Number of Elements>, <Exponent> , <Variable Value v>, <Boolean Cumulative> ]
+;Zipf( <Number of Elements>, <Exponent> , <Variable Value v>, <Boolean Cumulative> )
 :Let X be a Zipf random variable.
 :Returns P( X = ''v'') when ''Cumulative'' = false.