Displaying 6 results from an estimated 6 matches for "6.661338e".
2009 Apr 08
2
Display a very low p-value
Hello R-Help,
I ran some analysis and were hit with some low Z-score. I tried to convert
it to a p-value, however, it seems like the ceiling is around 1e-16.
> 1-pnorm(8)
[1] 6.661338e-16
> 1-pnorm(9)
[1] 0
Do you have any suggestion how I can display a very low p-value in the form
of scientific number format?
Thank you very much.
Regards,
Bhoom
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2009 Oct 07
1
Buglet in qbeta?
Hi,
I sometimes play around with extreme parameters for distributions and
found that qbeta is not always monotone as the following example shows.
I don't know whether this is serious enough to submit a bug report (as
this example is near to the limitations of floating point arithmetic).
Josef
> x <- qbeta((0:100)/100,0.01,5)
> x
[1] 0.000000e+00 1.253990e-201 1.589622e-171
2005 Apr 20
1
make check failure -- R 2.1.0 Windows XP SP2
I compiled R 2.1.0 under Windows XP SP2 as a preliminary to rebuilding a
custom package for use with R 2.1.0. The compile completed successfully,
and I was able to run demo(graphics) successfully. But make check and
make check-recommended fail.
> version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 2
minor 1.0
year 2005
2005 Jan 09
0
dist{amap} error??
Dear all,
I have come across a very confusing matter regarding dist() supplied by
the amap package:
--- m is just a test matrix
> library(amap)
Loading required package: mva
Warning message:
package 'mva' has been merged into 'stats'
> m a b c
aa 0.1 0.2 0.3
bb 2.0 3.0 4.0
cc 2.0 4.0 6.0
dd 0.3 0.2 0.1
> ds<-dist(m,method="pearson")
>
2006 Jan 12
0
bug in qr.coef() and (therefore) in qr.solve (PR#8476)
[I thought I'd submitted this bug report some time ago, but it's never showed up on the bug tracking system, so I'm submitting again.]
qr.solve() gives incorrect results when dealing with complex matrices or with qr objects that have been computed with LAPACK=TRUE, whenever the b argument has more than one column. This bug flows from qr.coef(), which has a similar problem. I believe
2007 Apr 11
3
Help with pexp( )
Dear all,
Sorry for bringing up an old issue:
>pexp(50, 0.5)
[1] 1
In some cases, pexp() gives CDF=1. I read some discussion in 2002 saying it
has been patched. However it's not working in "R2.4.1Patched". Could anyone
help me out?
Thanks a lot,
Jeann
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