Standard Deviation of an array

I have an array arrData(800,15). I want to find the standard deviation of the data in arrData(800,10). Is there a way to do this without entering 800 rows in an excel spreadsheet and using STDEV.S there? Thanks.

have you seen this:
VBA: Multidimentional Array Syntax for STDEV Evaluation | MrExcel Message Board

Code:

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sd = Application.StDev_S(Application.Index(arrData, ,10))

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