Description:
Adjust the order of members of a sequence.
Syntax:
A.inv(p)
Note:
The function adjusts the order of members of A according to the integer sequence p, whose members are ranks of members of sequence A, and return the new A.
If p has duplicate members or has different number of members from A, or the value of a member of p exceeds the maximum ordinal number of A’s member, the function will return null. It does not handle the ties.
Parameter:
|
p |
An integer sequence, whose members are ranks of members of A. So the number of its members is the same as that of members of A, and it is a unique n-integer sequence (n is the length of sequence A) |
|
A |
A sequence or a record sequence |
Return value:
Sequence
Example:
|
|
A |
|
|
1 |
[b,c,a,d] |
|
|
2 |
=A1.inv([2,3,1,4]) |
[a,b,c,d] |
|
3 |
[b,a,a,c] |
|
|
4 |
=A3.inv([2,1,1,3]) |
[a,b,c,null] |
Related function: