Stdev - script function

Stdev() returns the standard deviation of the values given by the expression over a number of records as defined by a group by clause.

Syntax:

Stdev([distinct] expr)

Return data type: numeric

Arguments:

Arguments
Argument	Description
expr	The expression or field containing the data to be measured.
distinct	If the word distinct occurs before the expression, all duplicates will be disregarded.

Examples and results:

Add the example script to your appand run it. Then build a straight table with Type and MyStdev as dimensions.

Example Result

Resulting data
Example	Result
`Table1: Crosstable (Type, Value) Load recno() as ID, * inline [ Observation\|Comparison 35\|2 40\|27 12\|38 15\|31 21\|1 14\|19 46\|1 10\|34 28\|3 48\|1 16\|2 30\|3 32\|2 48\|1 31\|2 22\|1 12\|3 39\|29 19\|37 25\|2 ] (delimiter is '\|');` Stdev1: LOAD Type, Stdev(Value) as MyStdev Resident Table1 Group By Type;	The results of the Stdev() calculation are: Type is MyStdev Comparison is 14.61245 Observation is 12.507997

Table1:
Crosstable (Type, Value)
Load recno() as ID, * inline [
Observation|Comparison
35|2
40|27
12|38
15|31
21|1
14|19
46|1
10|34
28|3
48|1
16|2
30|3
32|2
48|1
31|2
22|1
12|3
39|29
19|37
25|2 ] (delimiter is '|');

Stdev1:

LOAD Type,

Stdev(Value) as MyStdev

Resident Table1 Group By Type;

The results of the Stdev() calculation are:

Type is MyStdev
Comparison is 14.61245
Observation is 12.507997

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