Difference between revisions of "Zipf Command"

Revision as of 12:16, 19 December 2012

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 bar graph of a cumulative Pascal 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.

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.; Example:
Zipf[ 10, 1 , 5, false] yields \frac{504}{7381}.

@@ Line 16: / Line 16: @@
 :First two parameters are same as above.
 ==CAS Syntax==
-In [[CAS View]] only one syntax is allowed:
 ;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.
+:{{example|1=<div><code><nowiki>Zipf[ 10, 1 , 5, false]</nowiki></code> yields ''<math>\frac{504}{7381}</math>''.</div>}}