Displaying 4 results from an estimated 4 matches for "randel".
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mandel
2010 Mar 12
3
rmaxwell in C
Hi R useRs:
How can I generate a random sample from Maxwell Distribution in C language?
Since I know the function rmaxwell {VGAM}, I tried the function r2c {r2c}.
But I still cannot find the source code.
Thanks for your kind help.
RegaRds,
2010-03-12
Randel
[[alternative HTML version deleted]]
2006 Jan 30
3
Date Not Staying in Date Format
I have a column in a data frame that has a class of "Date" and a mode of
"numeric". When I:
max(df$Date)
My output stays in Date format, i.e. "2006-01-03".
However, when I run the following statment:
tapply(df$Date, df$SomeFactor, max)
my output looks like this: 9129 9493 9861 10226 10591 10956 11320
11687 12052 12417
The returned object is of
2010 Nov 20
1
Error in solve.default(V, W) with ProDenICA and the required sample size for stable result
...nd how large is the sample size N generally required for a stable and
robust result?
I tried a sample of N=30 and get a very fluctuated mixing matrix A
with fastICA algorithm in package fastICA,
and the results become quite stable for a similar sample with N=60.
Thanks for your patient reply!
--
Randel
School of Statistics,
Renmin University of China.
2004 Oct 08
0
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