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Select
Select[
list
,
crit
] picks out all elements  of list for which crit
[
] is True.
Select[
list
,
crit
,
n
] picks out the first n elements for which crit
[
] is True.
Example: Select[
1,4,2,7,6
, EvenQ] .
The object list can have any head, not necessarily List.
See the Mathematica book: Section 2.2.7.
See also: Cases, Take, Drop.
Related package: Statistics`DataManipulation`.
Further Examples
This selects the even numbers from the list.
In[1]:= 
Out[1]= 
This selects those numbers in the list that are greater than 10.
In[2]:= 
Out[2]= 
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT. SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION. | | | |
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