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Sterr - script function

Sterr() returns the aggregated standard error (stdev/sqrt(n)) for a series of values represented by the expression iterated over a number of records as defined by a group by clause.

Syntax:  

Sterr ([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.

Limitations:  

Text values, NULL values and missing values are disregarded.

Examples and results:  

Add the example script to your app and run it. To see the result, add the fields listed in the results column to a sheet in your app.

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 '|');
 

Sterr1:

LOAD Type,

Sterr(Value) as MySterr

Resident Table1 Group By Type;

In a table with the dimensions Type and MySterr, the results of the Sterr() calculation in the data load script are:

Type MySterr

Comparison 3.2674431

Observation 2.7968733

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