Difference between revisions of "Zipf Command"
From GeoGebra Manual
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{{command|probability}} | {{command|probability}} | ||
;Zipf[ <Number of Elements>, <Exponent> ] | ;Zipf[ <Number of Elements>, <Exponent> ] | ||
| − | : Returns a bar graph of a [[w:Zipf's law|Zipf distribution]]. | + | :Returns a bar graph of a [[w:Zipf's law|Zipf distribution]]. |
:''Parameters:'' | :''Parameters:'' | ||
::''Number of Elements'': number of elements whose rank we study | ::''Number of Elements'': number of elements whose rank we study | ||
::''Exponent'': exponent characterizing the distribution | ::''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 bar graph of a Zipf distribution when ''Cumulative'' = false. |
| − | : Returns a bar graph of a cumulative Pascal distribution when ''Cumulative'' = true. | + | :Returns a bar graph of a cumulative Pascal distribution when ''Cumulative'' = true. |
| − | : First two parameters are same as above. | + | :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. | + | :Let X be a Zipf random variable. |
| − | : Returns P( X = ''v'') when ''Cumulative'' = false. | + | :Returns P( X = ''v'') when ''Cumulative'' = false. |
| − | : Returns P( X ≤ ''v'') when ''Cumulative'' = true. | + | :Returns P( X ≤ ''v'') when ''Cumulative'' = true. |
| − | : First two parameters are same as above. | + | :First two parameters are same as above. |
| − | |||
==CAS Syntax== | ==CAS Syntax== | ||
In [[CAS View]] only one syntax is allowed: | In [[CAS View]] only one syntax is allowed: | ||
;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. | + | :Let X be a Zipf random variable. |
| − | : Returns P( X = ''v'') when ''Cumulative'' = false. | + | :Returns P( X = ''v'') when ''Cumulative'' = false. |
| − | : Returns P( X ≤ ''v'') when ''Cumulative'' = true. | + | :Returns P( X ≤ ''v'') when ''Cumulative'' = true. |
Revision as of 13:37, 6 September 2011
- 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.
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.
