Wolfram Mathematica Documentation Center
DOCUMENTATION CENTER SEARCH
New to Mathematica? Find your learning path »
Mathematica > Core Language > List Manipulation > Elements of Lists > Pick >
Mathematica > Data Manipulation > Handling Arrays of Data > Elements of Lists > Pick >
Mathematica > Data Manipulation > Image Processing & Analysis > Basic Image Manipulation > Elements of Lists > Pick >
BUILT-IN MATHEMATICA SYMBOLTutorials »|See Also »|More About »

Pick

Pick
picks out those elements of list for which the corresponding element of sel is True.
Pick
picks out those elements of list for which the corresponding element of sel matches patt.
MORE INFORMATION
  • sel can be a nested list of any depth.
  • Pick picks out those for which matches patt.
  • Depending on the arrangement of elements matching patt in a nested list sel, Pick may return a ragged array.
  • The heads in list and sel do not have to be List.
EXAMPLESCLOSE ALL
Basic Examples   (2)
Pick out elements wherever a 1 appears in the "selector" list:
Pick out elements from a 2D array:
Pick out elements wherever a 1 appears in the "selector" list:
In[1]:=
Click for copyable input
Out[1]=
 
Pick out elements from a 2D array:
In[1]:=
Click for copyable input
Out[1]=
Scope   (1)
Pick out elements wherever True appears in the "selector" list:
Generalizations & Extensions   (1)
The data does not have to be a list:
Possible Issues   (1)
The "selector" list has to have the same length and structure as the data:
New in 5.1
Ask a question about this page  |  Suggest an improvement  |  Leave a message for the team
Format:   HTML  |  CDF