Displaying 20 results from an estimated 400 matches similar to: "Mapping actual to expected columns for princomp object"
2005 Mar 24
1
RE: [R] Mapping actual to expected columns for princomp object
[Re-directing to R-devel, as I think this needs changes to the code.]
Can I suggest a modification to stats:predict.princomp so that it will check
for column (variable) names?
In src/library/stats/R/princomp-add.R, insert the following after line 4:
if (!is.null(cn <- names(object$center))) newdata <- newdata[, cn]
Now Dana's example looks like:
> predict(pca1, frz)
Error in
2005 Apr 19
0
Changes to batchSOM from 1.9.1 to 2.0.1
Has the algorithm used by batchSOM for hexagonal topology changed in some
way between R 1.9.1 and 2.0.1? In comparing between the two versions, I
get identical results for rectangular topology, but very different results
for hexagonal topology. (I tried to find release notes for the VR bundle
that might explain the changes, but was unable to locate these anywhere.)
Here's the script I
2012 Sep 09
1
PCA legend outside of PCA plot
Hi All,
I have been trying to get to plot my PCA legend outside of the PCA plot,
but success still alludes me.
Can you guys please advise how I can achieve this. I used locater() to
obtain coordinates for below the Comp.1 axis. Using these coordinates the
legend disappears.
Below is the code for the PCA and legend.
Thanks in advance for the help.
Regards
Tinus
r.cols <-
2012 Nov 14
2
error data frame
Hallo everybody!
I am trying to perform a TiTAN (Baker & King 2010) analysis with R 2.14.1. I
have come that far:
h89Abund <- read.csv("Fish89Abund.csv")
> names (Fish89Abund)
[1] "StationCode" "Abramisbrama"
"Alburnoidesbipunctatus" "Alburnusalburnus"
[5] "Ameiurusmelas"
>
2009 Feb 08
2
how to make this qq plot in lattice and/or ggplot2
Hi Group,
Here is some data.
p <- runif(1000) # sample data
groups <- rep(c(1,2),each=500) #conditioning variable
mydata <- cbind(p,groups)
n <- length(p)
u <- (1:n)/(n + 1) # uniform distribution reference for qqplot
logp <- -log(p,base=10)
logu <- -log(u,base=10)
qqplot(logp,logu)
How can I make the above qqplot in lattice and/or ggplot2. The sample
is uniform, and I take
2013 Feb 20
0
Bayesian mixing model
Fellow R users,
I'm using the BCE {BCE} function to run a Bayesian sediment mixing model. The aim is to find the optimum % contribution from each of the 4 source areas that can yield the target geochemistry.
I have geochemistry for 4 source areas called Rat:
Rat<-read.table(text="CaO MgO Na2O Al2O3
Topsoils 2.511250 0.7445500 0.7085500 14.10375
ChannelBanks
2007 Jul 18
0
multicollinearity in nlme models
I am working on a nlme model that has multiple fixed effects (linear and nonlinear) with a nonlinear (asymptotic) random effect.
asymporig<-function(x,th1,th2)th1*(1-exp(-exp(th2)*x))
asymporigb<-function(x,th1b,th2b)th1b*(1-exp(-exp(th2b)*x))
mod.vol.nlme<-nlme(fa20~(ah*habdiv+ads*ds+ads2*ds2+at*trout)+asymporig(da.p,th1,th2)+
asymporigb(vol,th1b,th2b),
2013 Jul 10
3
PCA and gglot2
Hi,
I was trying as well as looking for an answer without success (a bit strange
since it should be an easy problem) and therefore I will appreciate you
help:
My simple script is:
# Loadings data of 5 columns and 100 rows of data
data1<-read.csv("C:/?/MyPCA.csv")
pairs(data1[,1:4])
pca1 <- princomp(data1[,1:4], score=TRUE, cor=TRUE)
biplot(pca1)
The biplot present the data
2009 Sep 06
2
question about ... passed to two different functions
I have hit a problem with the design of the mcmc package I can't
figure out, possibly because I don't really understand the R function
call mechanism. The function metrop in the mcmc package has a ... argument
that it passes to one or two user-supplied functions, which are other
arguments to metrop. When the two functions don't have the same arguments,
this doesn't work.
2012 Apr 16
1
eval a SYMSXP from C
Can someone offer some advice on how to properly evaluate a SYMSXP
from a .Call ?
I have the following in R:
variable xn, with an attribute "mu" which references the variable mu
in the global environment.
I know "references" is a loose term; mu was defined in this fashion as
a way to implement deferred binding:
foo <- function(x,mu) {
attr(x,"mu") <-
2009 Aug 03
1
principal component analysis for class variables
Dear Forum,
I have a class variable 1 (populations A-E), and two other class variables,
variable 2 and variable 3. What I want is to see if the combination of var 2
and var 3, will give me a pattern that allows to distinguish populations.
I found several packages like ade4, with pcaiv function and factoMineR. but
there are not working. Using the ade4 package, when I try to build the pca:
pca1
2014 Jun 02
0
[RFC PATCH v1.3 08/16 1/2] drm/radeon: add timeout argument to radeon_fence_wait_seq
This makes it possible to wait for a specific amount of time,
rather than wait until infinity.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst at canonical.com>
---
Splitted out version, I've noticed that I forgot to convert radeon_fence_wait_empty to long r, fixed.
drivers/gpu/drm/radeon/radeon_fence.c | 60 +++++++++++++++++++++++------------
1 file changed, 40 insertions(+),
2014 Jun 02
1
[RFC PATCH v1.3 08/16 1/2] drm/radeon: add timeout argument to radeon_fence_wait_seq
Am 02.06.2014 15:14, schrieb Maarten Lankhorst:
> This makes it possible to wait for a specific amount of time,
> rather than wait until infinity.
>
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst at canonical.com>
> ---
> Splitted out version, I've noticed that I forgot to convert
> radeon_fence_wait_empty to long r, fixed.
>
2011 Apr 21
1
Rearranging PCA results from R
Hi!!
I'm having trouble selecting 10 out of 41 attributes of the KDD data set. In
order to identify the components with the higher variance I'm using
princomp. the result i get for summary(pca1) is:
Comp.1 Comp.2 Comp.3
Comp.4 Comp.5 Comp.6 Comp.7 Comp.8
Comp.9
2014 May 15
0
[RFC PATCH v1 08/16] drm/radeon: use common fence implementation for fences
op 15-05-14 11:42, Christian K?nig schreef:
> Am 15.05.2014 11:38, schrieb Maarten Lankhorst:
>> op 15-05-14 11:21, Christian K?nig schreef:
>>> Am 15.05.2014 03:06, schrieb Maarten Lankhorst:
>>>> op 14-05-14 17:29, Christian K?nig schreef:
>>>>>> + /* did fence get signaled after we enabled the sw irq? */
>>>>>> + if
2007 Jun 20
1
nlme correlated random effects
I am examining the following nlme model.
asymporig<-function(x,th1,th2)th1*(1-exp(-exp(th2)*x))
mod1<-nlme(fa20~(ah*habdiv+ad*log(d)+ads*ds+ads2*ds2+at*trout)+asymporig(da.p,th1,th2),
fixed=ah+ad+ads+ads2+at+th1+th2~1,
random=th1+th2~1,
start=c(ah=.9124,ad=.9252,ads=.5,ads2=-.1,at=-1,th1=2.842,th2=-6.917),
data=pca1.grouped)
However, the two random effects (th1 and th2)
2014 Jun 02
0
[RFC PATCH v1.2 08/16] drm/radeon: use common fence implementation for fences
Changes since v1:
- Fixed interaction with reset handling.
+ Use exclusive_lock, either with trylock or blocking.
+ Bump sw irq refcount in the recovery function to prevent fiddling
with irq registers during gpu recovery.
- Add radeon lockup detection to the default fence wait function.
---
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index
2008 Jun 24
0
GWA plot
I need some help with a genome-wide association scatterplot. A
recently published example of such a plot is attached to this message.
Typical variables include:
Y: -logP-value (range from 0 to 8)
X: chromosomal distance
Z: chromosomes 1 through 22 and X (a factor with 23 levels)
I used coplot(Y~X|CHR) and xyplot(Y~X|CHR), but I am not sure how to
get the entire graph in a single panel (see
2011 Mar 03
0
[PATCH] Eliminate the ec_int32 and ec_uint32 typedefs.
These were used because the entropy coder originally came from
outside libcelt, and thus did not have a common type system.
It's now undergone enough modification that it's not ever likely to
be used as-is in another codec without some porting effort, so
there's no real reason to maintain the typedefs separately.
Hopefully we'll replace these all again somedate with a common set
2014 Jun 02
3
[RFC PATCH v1.2 08/16] drm/radeon: use common fence implementation for fences
Am 02.06.2014 12:09, schrieb Maarten Lankhorst:
> Changes since v1:
> - Fixed interaction with reset handling.
> + Use exclusive_lock, either with trylock or blocking.
> + Bump sw irq refcount in the recovery function to prevent fiddling
> with irq registers during gpu recovery.
> - Add radeon lockup detection to the default fence wait function.
First of all please