how to tke an average of value at th 0to 15 , 16 to 30, 31 to 45, 46 to 59 mins

[.aCe.]

Use it in this manner.

[Coq_Rouge]

A not so known function is this. But it is very useful. So I  

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Decimate (single shot) VI

Owning Palette: Signal Operation VIs

Installed With: Full Development System

Decimates the input sequence X by the decimating factor and the averaging Boolean control. Wire data to the X input to determine the polymorphic instance to use or manually select the instance.

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 As I can see your interval is constant so this funtion could replace most of the coding shown in suggestions from other 😉

[.aCe.]

Its not constant unfortunately. Sometimes two samples occur with the same time stamps even.

[Julian_prince]

is it correct manner here is the programme,,

[.aCe.]

Here.

[Julian_prince]

Dear sir,

I have Labview 2010 version , please send in competible version.,,

the sent programme is in labview 2011 version..

[.aCe.]

LV2010 version attached.