Difference between revisions of "KeepIf Command"

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; KeepIf[ <Condition>, <List> ]: Creates a new list that only contains those elements of the initial list that fulfil the condition.
 
; KeepIf[ <Condition>, <List> ]: Creates a new list that only contains those elements of the initial list that fulfil the condition.
 
: {{Example|1=<code>KeepIf[x<3, {1, 2, 3, 4, 1, 5, 6}]</code> returns the new list ''{1, 2, 1}''.}}
 
: {{Example|1=<code>KeepIf[x<3, {1, 2, 3, 4, 1, 5, 6}]</code> returns the new list ''{1, 2, 1}''.}}
{{note|1=For list of numbers arbitrary condition may be used. For list of other objects one can use only conditions of the form <code>x==constant</code> or <code>x!=constant</code>.}}
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:{{note|1=For list of numbers arbitrary condition may be used. For list of other objects one can use only conditions of the form <code>x==constant</code> or <code>x!=constant</code>.}}
  
  

Revision as of 08:27, 14 August 2012


KeepIf[ <Condition>, <List> ]
Creates a new list that only contains those elements of the initial list that fulfil the condition.
Example: KeepIf[x<3, {1, 2, 3, 4, 1, 5, 6}] returns the new list {1, 2, 1}.
Note: For list of numbers arbitrary condition may be used. For list of other objects one can use only conditions of the form x==constant or x!=constant.


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