Re: [R] want to make a plot similar to ecdf

From: jim holtman <jholtman_at_gmail.com>
Date: Wed, 19 Dec 2007 08:11:09 -0500

This should give you what you want:

 x <- scan(textConnection("0.00000000 2.39722222 4.35000000 -4.19722222 0.63611111
 1.08055556 5.90555556 -1.87222222 2.13333333 -1.18055556

  3.61666667   0.87777778   8.33888889   3.84166667   1.11111111
 -3.76111111 -11.67777778  -2.03055556   6.94444444 -11.76666667
  4.81111111  -7.25833333   1.42222222   5.37222222   4.68055556
  0.69166667  -5.36944444   5.35555556   4.26944444   6.14722222
  0.42500000   2.90555556  11.74166667   5.99444444   3.60555556
 -2.18333333   2.07777778  -9.79722222   7.26111111   4.50277778
  0.84722222   0.42222222   1.01388889  -0.04722222   5.03611111
  0.26666667   0.10555556   1.01666667   5.65833333   4.11111111
  0.23055556   8.53611111   4.42222222   4.93055556  13.41111111
  0.00000000   0.00000000  13.37500000   1.52500000   6.35833333"), what=0)
x <- sort(x)
plot(x, cumsum(rep(1, length(x))), type='s')

On Dec 19, 2007 7:26 AM, gallon li <gallon.li_at_gmail.com> wrote:
> I have a sample of observations:
>
> > yy
> [1] 0.00000000 2.39722222 4.35000000 -4.19722222 0.63611111
> [6] 1.08055556 5.90555556 -1.87222222 2.13333333 -1.18055556
> [11] 3.61666667 0.87777778 8.33888889 3.84166667 1.11111111
> [16] -3.76111111 -11.67777778 -2.03055556 6.94444444 -11.76666667
> [21] 4.81111111 -7.25833333 1.42222222 5.37222222 4.68055556
> [26] 0.69166667 -5.36944444 5.35555556 4.26944444 6.14722222
> [31] 0.42500000 2.90555556 11.74166667 5.99444444 3.60555556
> [36] -2.18333333 2.07777778 -9.79722222 7.26111111 4.50277778
> [41] 0.84722222 0.42222222 1.01388889 -0.04722222 5.03611111
> [46] 0.26666667 0.10555556 1.01666667 5.65833333 4.11111111
> [51] 0.23055556 8.53611111 4.42222222 4.93055556 13.41111111
> [56] 0.00000000 0.00000000 13.37500000 1.52500000 6.35833333
>
> I want to make an empirical distribution plot. But, I wish that the y-axis
> is the count instead of probability.
>
> plot(ecdf(yy))
>
> can only give the cumulative distribution on the y-axix.
>
> [[alternative HTML version deleted]]
>
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>

-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem you are trying to solve?

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Received on Wed 19 Dec 2007 - 13:15:07 GMT

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