=========================================================================
Date:         Thu, 13 Jul 2006 17:44:45 -0500
Reply-To:     "Reutter, Alex" <areutter@spss.com>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         "Reutter, Alex" <areutter@spss.com>
Subject:      Re: White paper for percentile rank formula
Content-Type: text/plain; charset="US-ASCII"

See the algorithms document for the procedure(s) you're interested in.

http://support.spss.com/tech/Products/SPSS/Documentation/Statistics/algorithms/index.html

Using Guest/Guest as login/password.

Alex


> -----Original Message-----
> From: SPSSX(r) Discussion [mailto:SPSSX-L@LISTSERV.UGA.EDU] On Behalf Of
> Frank Berry
> Sent: Thursday, July 13, 2006 2:54 PM
> To: SPSSX-L@LISTSERV.UGA.EDU
> Subject: White paper for percentile rank formula
>
> Hi,
>
> Is there a white paper that explains a formula for each of the following
> percentiles in spss? When there is missing values in a numeric variable
> ranging from 0 to 100 (all integers), would the same formula for
> percentiles applies to missing values in that variable? For example, an
> equal percentile can be obtained for values of 49, 50 - missing and 51. Or
> in other cases, same value of 49 could have two or more percentiles.
>
> TIA.
> Frank
>
>   /PERCENTILES= 1 2 3 4 5 6 7 8 9 10
>  11 12 13 14 15 16 17 18 19 20
>  21 22 23 24 25 26 27 28 29 30
>  31 32 33 34 35 36 37 38 39 40
>  41 42 43 44 45 46 47 48 49 50
>  51 52 53 54 55 56 57 58 59 60
>  61 62 63 64 65 66 67 68 69 70
>  71 72 73 74 75 76 77 78 79 80
>  81 82 83 84 85 86 87 88 89 90
>  91 92 93 94 95 96 97 98 99
>