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Re: eliminate values while caculating Mean[data]

  • To: mathgroup at smc.vnet.net
  • Subject: [mg91958] Re: eliminate values while caculating Mean[data]
  • From: Bill Rowe <readnews at sbcglobal.net>
  • Date: Mon, 15 Sep 2008 03:40:11 -0400 (EDT)

On 9/13/08 at 5:57 AM, karami at geo.uu.nl (Pasha Karami) wrote:

>An easy question: I would like to make an average of a data file.I
>know that we can use Mean function for this.

>However, I want to  eliminate some values from my data.For example
>if I have

>data={1,2,3,4,5,0,0,0} Mean[data] would be 15/8

>I do not want the "zero" values in my Mean function (i.e.I want the
>mean value to be 3 in the above example) How can I do this?

Use DeleteCases to omit the unwanted values, i.e.,

In[2]:= Mean@DeleteCases[data, 0]

Out[2]= 3


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