Thanks for your remarks.
According to
http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/howto-compile.html, I
need 16 bit aligned memory when using fill_array64. So I suppose I need 8
bit aligned memory. I will test what you advise me and will come back to
R-devel list after.
Thanks again
While you are at it could you add { to the
table so that this works:
# this is ok
f - function(x) x*x
D(body(f), x)
x + x
# but not g which is same as f
# except it has { ... } surrounding its body
g - function(x) { x*x }
D(body(g), x)
Error in D(body(g), x) : Function '`{`' is not in the
http://www.zoology.ufl.edu/bolker/deriv_patch2.txt
has this change added as well.
However, I'm not as confident that this is the right thing
to do? Should curly brackets even be appearing in mathematical
expressions?
Ben
Gabor Grothendieck wrote:
While you are at it could you add { to
The derivative of plogis is surely dlogis. (And yes, there is a good
reason why we have such a function: take a look at its C code.)
That means we would need an entry for dlogis too, I guess. I am not
convinced that there is a real need for these (and where does this stop?)
What would be
Prof Brian Ripley wrote:
The derivative of plogis is surely dlogis. (And yes, there is a good
reason why we have such a function: take a look at its C code.)
Doh.
That means we would need an entry for dlogis too, I guess. I am not
convinced that there is a real need for these (and where
You could see if Ryacas package can do what you want:
http://ryacas.googlecode.com
2008/8/14 Ben Bolker [EMAIL PROTECTED]:
Prof Brian Ripley wrote:
The derivative of plogis is surely dlogis. (And yes, there is a good
reason why we have such a function: take a look at its C code.)
Doh.
There's a small typo in proc.time.Rd:
\sQuote{system lime} should be \sQuote{system time}
Thanks,
Stephen
--
Rochester, Minn. USA
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Shengqiao Li wrote:
Hello all,
I am generating large samples of random numbers. The RNG help page says:
All the supplied uniform generators return 32-bit integer values that are
converted to doubles, so they take at most 2^32 distinct values and long
runs will return duplicated values.
This message is in MIME format. The first part should be readable text,
while the remaining parts are likely unreadable without MIME-aware tools.
---559023410-851401618-1218751024=:15885
Content-Type: TEXT/PLAIN; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: QUOTED-PRINTABLE
Remember Wichmann-Hill is a composite generator. Its composition does
take more than 2^32 distinct values.
You still haven't identifed a problem here. The note is to warn that
runif() does repeat within a cycle, because people wrote code assuming
otherwise. It would be a poor use of
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