One further version: this one with a header and with NA's replacing
the -9999's that apparently has not deleted any cases with missing data:
http://www.stat.auckland.ac.nz/~wild/764/s764data/prostatic.tab
--
David Winsemius
On Mar 24, 2009, at 11:51 PM, Ravi Varadhan wrote:
Fine detective work, David. Now, you can see the reasons for my
frustration - multiplicity of data sets combined with non-existent
documentation of the source of data in journal articles (e.g. Kay
1986; Lunn and McNeil 1995).
Best,
Ravi.
____________________________________________________________________
Ravi Varadhan, Ph.D.
On Mar 24, 2009, at 8:57 PM, Rolf Turner wrote:
On 25/03/2009, at 12:09 PM, Frank E Harrell Jr wrote:
<snip>
(2) Scrolling down to ``Byar and Green prostate cancer data''
appeared
to get
me to the right place. But I couldn't see any signs of any ``R
binary
files''.
Please look again. It's under the heading "R". Unfortunately I
used
.sav suffix for save() files in the old days.
Ah-ha. Oh me of little faith. I have been hanging around (in
my current work environment) with too many SPSS users, and the
*.sav extension seems to be the standard for SPSS data files.
Whence my corrupted thinking.
The .xls fine opened with no problem in OpenOffice; has 506 rows.
Hmmm. When I opened it with Excel on the Mac I got a spread
sheet with 503 rows --- the first row being the column names,
so there were really 502 rows.
The last "patnr" is "506" but there are only 502 lines of data. 471,
473, 475 and 488 are missing.
And the CMU Statlib version for 2002 looks the same.
The version at this site is missing more than 25 cases:
Here are two other copies of the dataset the first of which appears
to
have those missing cases:
This one has patient numbers:
This one has a description of the fields and cites the one above but
has not retained the patient numbers and has apparently only kept the
475 cases with complete data.
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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