Description:
Compute average of members of a sequence.
Syntax:
|
A.avg(x) |
|
|
avg(x1,…,xn) |
Equivalent to A.avg(), where x1,…,xn are members of sequence A |
Note:
The function computes x with each member of sequence A and returns average value of the non-null members, during which non-numeric members are ignored. When non-null, numeric members are zero, the average is null.
Parameter:
|
A |
A sequence |
|
x |
An expression; cannot be omitted when sequence A is a record sequence or a table sequence |
Return value:
Numerical value
Example:
When A is a sequence:
|
|
A |
|
|
1 |
=[1,3,5,6].avg() |
3.75. |
|
2 |
=[2,null,4,3].avg() |
3.0. |
|
3 |
=[null,,"" ,"abc"].avg() |
Null. |
|
4 |
=[2,4,3,"aaa"].avg() |
3.0; ignore non-numeric members. |
|
5 |
=[1,2,3,4].avg(~*~) |
7.5; first compute the expression and then the average. |
|
6 |
=avg(1,3,5,6) |
3.75, which is same as A1. |
When A is a table sequence or record sequence:
|
|
A |
|
|
1 |
=demo.query("select * from EMPLOYEE") |
|
|
2 |
=A1.avg(SALARY) |
Compute average of non-null SALARY values. |
|
3 |
=A1.(SALARY+100).avg() |
Add 100 to each SALARY value and then compute their average. |