Displaying 20 results from an estimated 5000 matches similar to: "pooling categories in a table"
2002 Apr 24
1
pooling categories in a contingency table
John Fox helped show me how to collapse the categories, pooling
frequencies, in an n-way table, using levels()<- on an equivalent
data frame:
# create a table
sex <- c("Male", "Female")
age <- letters[1:6]
education <- c("low", 'med', 'high')
data <- expand.grid(sex=sex, age=age, education=education)
counts
2019 Sep 28
9
[PATCH nbdkit v2 0/4] info: Add mode for sending back server time.
v1 was:
https://www.redhat.com/archives/libguestfs/2019-September/thread.html#00361
v2:
- Adds a patch to rename the reflection plugin to the info plugin.
- Adds tests.
Rich.
2010 Oct 22
8
Wine with Ati 3d Card
Hi
I have a Radeon Ati 3d graphics external card in my machine.
I have about 512 mb vram and 4 gb ram
and intel core duo 2.4 ghz
I have never experienced any problems with my graphics card
untill i used it with wine on ubuntu.
Suddenly I could not play the games I used to play in windows xp.
I tested doom 95 and halo evolved and they both could not run and
stuttered.
I have no problems
2001 Jan 04
6
regression constraints?
gday R gurus,
I have a multivariate regression for which I want to constrain the
coefficients to be > 0. Is this possible?
I've check the doco and searched CRAN but can't find anything.
thanks,
John Strumila
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2013 May 02
2
[LLVMdev] Handling Masked Vector Operations
Nadav Rotem <nrotem at apple.com> writes:
> For DIV/MOD you can blend the inputs BEFORE the operation. You can
> place ones or zeros depending on the operation.
Quick follow-up on this. What about using "undef" as the input for
false items:
tv1 = select mask, v1, undef
tv2 = select mask, v2, undef
tv3 = div tv1, tv2
v3 = select mask, tv3, undef
I'm always confused
2000 Jul 20
3
printing hclust with k clusters
howdy R friends,
I've searched CRAN but to no avail... I'm trying to use mva's hclust and
print out for say 10 clusters in batch. How do I do this? It's unclear if
I can use cutree.
thanks,
John Strumila
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r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send
2000 Aug 31
3
cant find "get"?
howdy gurus,
I was wondering if someone could help me with what looks like a simple
problem.
I found this great function called "get" which allows me to work out my
object name at run time. Unfortunately it's not letting me assign values
with it. What am I doing wrong?
thanks,
John Strumila
> names(get(file.name))[1]
[1] "X14.59.23"
>
2000 Aug 17
2
R on os390
G'day R friends,
I didn't get any replies on the main list so I thought I'd try with the
experts.
I was wondering if anyone's ported R to os390. If so, are the vsize and
nsize limits the same as other platforms?
I could really annoy those SAS guys then.
thanks,
John Strumila
john.strumila@team.telstra.com
2000 Jul 26
3
merge aint merging
g'day R friends,
can anyone please help me with a frustrating merge?
The number of rows of a resulting merge is the smaller of the 2 dataframes
used as input. What am I doing wrong? I'm using 1.1.0 on redhat 6.2
thanks,
John Strumila
> xx[1:10,]
datetime c
948992940 948992940 0
948993000 948993000 0
948993060 948993060 0
948993120 948993120 0
948993180 948993180 0
2000 Feb 24
1
queueing problems
howdy R friends,
I'm new but I used to play with S+ a long time ago. Can someone please help
me with how to approach this?
I have some response time data I want to 'correlate' with other data. I
believe queueing is involved so I need to prove somehow (F test?) that
response ~ exponential(...)
How do I go about this? I cant find exponential in 'nlm' or other
functions.
2000 Mar 03
1
tapply, sorting and the heap
howdy gurus,
I'm new and green and I was hoping for a tiny bit of your expertise.
I'm running out of virtual memory (heap?) when summing using tapply. I've
already used --vsize=90M on my hpux machine. (details below)
Can I pre-sort or something to prevent my error?
thanks,
John Strumila
john.strumila at corpmail.telstra.com.au
> gc()["Vcells","total"]
[1]
2001 Jan 11
1
lm variable name limit?
gday R gurus,
has anyone seen this lm problem?
When I add 2 bytes to the variable name (via names), lm returns an error.
It's as if there's a limit to the size of the variable names.
Any suggestions?
thanks,
John Strumila
> names(y)[12:14]
[1] "Log.SQLServer.Locks.RID.Lock.Wait" "Log.SQLServer.Lock"
[3] "xxaa"
2013 May 02
0
[LLVMdev] Handling Masked Vector Operations
>
>> For DIV/MOD you can blend the inputs BEFORE the operation. You can
>> place ones or zeros depending on the operation.
>
> Quick follow-up on this. What about using "undef" as the input for
> false items:
>
> tv1 = select mask, v1, undef
> tv2 = select mask, v2, undef
> tv3 = div tv1, tv2
> v3 = select mask, tv3, undef
>
> I'm
2001 Feb 19
1
ghostscript errors
gday R friends,
Since I had random errors with ghostscript 6.01 I thought I'd upgrade.
After upgrading to gs6.5 I've had problems. Originally, gs failed
complaining about lack of "__sysconf" in glibc2.2 so I upgraded glibc. Now I
get this. Note that it used to work with gs6.01.
I realise this is probably a ghostscript problem but you never know...
thanks,
John Strumila
>
2001 May 01
3
Factor Analysis
Thanks to Brian Ripley for the time and effort put into developing the
factanal package for R. I have found it very useful. However, in trying to
replicate some results from previous research, I have run into the need for
a couple of extensions and was wondering if they might find their way into
future implementations.
1. Though maximum likelihood estimates might be more rigorous and
2000 Sep 04
3
somebody's stolen my probabilities
gday gurus,
could someone please help me with this one? Can't find it in the doco.
summary of my lm object gives "Pr(>|t|)" but coef doesn't. How do I get
hold of these probabilities within an object? There doesn't seem to be an
appropriate attribute within the object - I was hoping for something like
"my.lm$probabilies".
I was hoping to grab the best t
2013 May 02
4
[LLVMdev] Handling Masked Vector Operations
Nadav Rotem <nrotem at apple.com> writes:
>
> For DIV/MOD you can blend the inputs BEFORE the operation. You
> can
> place ones or zeros depending on the operation.
>
> Quick follow-up on this. What about using "undef" as the input for
> false items:
>
> tv1 = select mask, v1, undef
> tv2 = select
2000 Jun 13
2
command history under cursor keys
g'day R friends,
I was hoping someone could provide me with advice as to my dysfunctional
'arrow' keys.
Instead of browsing thru my command history they just move my cursor. What
have I done wrong? My TERM seems ok for other unix apps.
I'm running under hpux 10.20 with R1.0.0
thanks,
John Strumila
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2000 May 22
6
handling dates
howdy R friends,
Can anyone help me with converting a ''unix'' date (seconds since 1970) into
something readable?
There doesn''t seem to be anything in the ''date'' package and the prospect of
calculating this myself doesn''t excite me.
thanks,
John Strumila
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r-help
2019 Sep 28
2
[PATCH nbdkit 1/2] common/include: Add function for subtracting struct timeval.
---
common/include/test-tvdiff.c | 75 +++++++++++++++++++++++++++++-------
common/include/tvdiff.h | 13 ++++++-
2 files changed, 74 insertions(+), 14 deletions(-)
diff --git a/common/include/test-tvdiff.c b/common/include/test-tvdiff.c
index 9cbcfc0..abefb2e 100644
--- a/common/include/test-tvdiff.c
+++ b/common/include/test-tvdiff.c
@@ -36,7 +36,6 @@
#include <stdlib.h>
#include