Calculates the standard deviation of all values of the specified member (mbrName) across the specified data set (XrangeList). The calculation is based upon a sample of a population. Standard deviation is a measure of how widely values are dispersed from their mean (average).

This function is calculated using the "unbiased" or "n-1" method. See @STDEV for the formula used.

Syntax

@STDEVRANGE (SKIPNONE | SKIPMISSING | SKIPZERO | SKIPBOTH, mbrName [, XrangeList])

Parameter | Description |
---|---|

SKIPNONE |
Includes all cells specified in expList, regardless of their content, during calculation of the standard deviation. |

SKIPMISSING |
Excludes all #MISSING values from expList during calculation of the standard deviation. |

SKIPZERO |
Excludes all zero (0) values from expList during calculation of the standard deviation. |

SKIPBOTH |
Excludes all zero (0) values and #MISSING values from expList during calculation of the standard deviation. |

mbrName |
Any valid single member name or member combination, or a function that returns a single member or member combination. |

XrangeList |
Optional. A valid member name, a comma-delimited list of member names, cross dimension members, or a member set function or range function (including @XRANGE) that returns a list of members from the same dimension. If XrangeList is not specified, Essbase uses the level 0 members from the dimension tagged as Time. |

Notes

The @STDEVRANGE function replaces the @STDDEVRANGE function. The only difference between the functions is the SKIP parameter in the @STDEVRANGE function. Although the old @STDDEVRANGE function is supported for migration purposes, you can no longer select it in the Calculation Script Editor or Formula Editor.

Example

The following example is based on the Sample Basic database. Assume that the Measures dimension contains an additional member, Std Deviation. This example calculates the standard deviation (based on a sample of a population) of the sales values for all products.

FIX (Product) "Std Deviation" = @STDEVRANGE(SKIPBOTH,Sales,@CHILDREN(Product)); ENDFIX

This example produces the following report:

Jan New York Actual Budget ====== ====== Sales Colas 678 640 Root Beer 551 530 Cream Soda 663 510 Fruit Soda 587 620 Diet Drinks #MI #MI Product 2479 2300 Std Deviation Product 60.73 64.55

See Also