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Re: eliminate values while caculating Mean[data]

  • To: mathgroup at smc.vnet.net
  • Subject: [mg91973] Re: eliminate values while caculating Mean[data]
  • From: "David Park" <djmpark at comcast.net>
  • Date: Mon, 15 Sep 2008 03:42:58 -0400 (EDT)
  • References: <gag2rl$3fq$1@smc.vnet.net>

Use the Fuctional Programming command Select.

data = {1, 2, 3, 4, 5, 0, 0, 0};

data2 = Select[data, # != 0 &]
{1, 2, 3, 4, 5}

Mean[data2]
3


-- 
David Park
djmpark at comcast.net
http://home.comcast.net/~djmpark/


"Pasha Karami" <karami at geo.uu.nl> wrote in message 
news:gag2rl$3fq$1 at smc.vnet.net...
> Dear all,
>
> 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?
>
> Thank you!
> Best,
> Pasha
>
> 



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