Displaying 20 results from an estimated 20000 matches similar to: "terms() and I( ) -- extract variables names only"
2000 Dec 10
1
seq(0.05,0.95,by=0.002) and logical error
Regardless of which version -- 1.1.1 or 1.2.0 (2000-11-27) -- with a fresh
"directory" (i.e. no .RData), I am getting an extremely weird result.
R : Copyright 2000, The R Development Core Team
Version 1.2.0 Under development (unstable) (2000-11-27)
> jj _ seq(0.05,0.95,by=0.002)
> sum(jj==0.75) ## WRONG ANSWER
[1] 0
> 0.05 + 350*.002 ## Double check that 0.75 is in jj
[1]
1998 Nov 28
2
dyn.load and/or add new package (Windows 98)
Hi,
I have been trying to dyn.load a library (rq.obj), which will allow me to run
a quantile regression function, but so far unsuccessfully.
I have tried under windows 98 and R 6.24:
1) dyn.load("d:\\...\\rq.obj")
2) dyn.load("d:\...\rq.obj")
3) 1 and 2 accounting for case sensitivity.
4) dyn.load("d:/.../rq.obj")
5) Place the files in the directory where from I
2001 Mar 07
1
lreadline
I compiled R-1.2.2 on my SuSE 7.1, kernel 2.4.2-2 machine with
libreadline.4.1 and although I can use vi commands to scroll on the shell
(bash) command line, I CANNOT do it in R. Here's the relevant parts of
./configure (and make):
anovo at friedman R-1.2.2 > ./configure | grep readline
checking for rl_callback_read_char in -lreadline... yes
checking for readline/history.h... yes
1999 Mar 10
1
funfits (PR#137)
Hi,
I spotted an inconsistency between the output of funfits under R, more
specifically "nnreg", and the one obtained under S-plus. Notice the difference
in the "Root MSE", "GVC" and "GVC cost=2". As a check mark, I am also including
the data summaries, confirming that I was in fact using the same data set.
Here's my output from both systems:
2002 Apr 10
4
Principal Component analysis question
I have a question about princomp(mva) that I hope isn't too newbie.
I used the sample data from Table 1.1 in "Manly (1986/1994) Multivariate
Statistical Methods: a primer. Chapman and Hall" on sparrow body
measurements.
I rescaled the data to mean 0 and SD 1, and the covariance matrix is:
V1 V2 V3 V4 V5
V1 1.0000000 0.7349642 0.6618119
1999 Sep 24
1
analysis of multivariate normal (missing values)
Hi,
I could not find an R package for the analysis of multivariate normal
datasets with missing values. Prof. Joseph Schafer has created an S+ library
(norm) that does such type of analysis, which I now ported to R.
I guess that I should have asked here if there are other people working on
such project, before I actually ported it, but... If such package has not been
ported, I will upload the
2000 Sep 22
2
arima.sim
Hi,
Before I re-invent the wheel, is there a function in R similar to S+'s
arima.sim, i.e., a function that simulates arima processes.
ts and tseries packages don't seem to have such function, but I may have
overlooked it.
Thank you for your time,
Alvaro Novo
R Version 1.1.1
SuSE 6.4 Linux
KDE 2.0 Beta 5
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
2000 Mar 29
2
regularly lattice & neighbors
Dear R-users,
Is there a procedure to identify neighbors in a regular lattice using either a
"rook" or a "queen" criterium? To be more specific, suppose:
My lattice:
1 2 3
4 5 6
7 8 9
"Rook" Neighbors
1 has neighbors 2,4
2 has neighbors 1,3,5
...
5 has neighbors 2,4,6,8
"Queen Neighbors"
1 has neighbors 2,4,5
2 has neighbors 1,3,4,5,6
For each case,
2008 Jul 24
0
[LLVMdev] Erlang
Hi Álvaro,
Your question is too vague to answer with any accuracy. Could you be
more specific?
-bw
On Jul 24, 2008, at 1:08 PM, "Álvaro Castro Castilla" <alvaro.castro.castilla at gmail.co
m> wrote:
> Hello,
>
>
> How would you implement an Erlang feature such as the ultra-light
> processes?
> Is llvm prepared for similar situations?
>
> I would
2008 Jul 24
2
[LLVMdev] Erlang
Hello,
How would you implement an Erlang feature such as the ultra-light processes?
Is llvm prepared for similar situations?
I would appreciate some insight on this.
Thank you very much,
.alvaro.castro.castilla.
2000 Jan 21
1
Compiling error R-0.90.1
Hi,
I'm struggling to compile R-0.90.1 in a RedHat 6.1 machine. (I have the rpm,
but I would like to compile it, as I do under SuSE 6.3). I have also installed
quite a few other libraries (not installed by default, in particular, *-devel-*
ones), but to no avail thus far.
Here's the compilation error after going through ./configure
[root at friedman R-0.90.1]# make
<snip>
2009 Mar 09
1
[LLVMdev] addPassesToEmitFile
When you say 'static libraries' do you mean static libraries or shared
objects (.so)... Because if you mean shared objects, then it could
very well explain you crash.
On Mar 9, 12:16 am, Álvaro Castro Castilla
<alvaro.castro.casti... at gmail.com> wrote:
> Well, I've been before hours trying this, but soon after I sent the
> email I found something. However is quite
1999 Oct 19
2
Summary bug?
Hi,
It seems that there's a bug in summary, in the max. output... but max() alone
works fine.
> hw04.dframe$area
...
[41] 1790 1380 1296 2745 798 2306 438649 1481 1559 2450
...
> summary(hw04.dframe)
area
Min. : 798
1st Qu.: 1349
Median : 1690
Mean : 6962
3rd Qu.: 2306
Max. :438600 ### should read 438649
or, to the point,
2012 Apr 19
1
mlogit learning error
I am learning five mlogits as follows
v1.model<-mlogit(v1~1|v2+v3+v4+v5, data=mlogit.v1.data, reflevel="1")
v2.model<-mlogit(v2~1|v1+v3+v4+v5, data=mlogit.v2.data, reflevel="1")
v3.model<-mlogit(v3~1|v1+v2+v4+v5, data=mlogit.v3.data, reflevel="1")
v4.model<-mlogit(v4~1|v1+v2+v3+v5, data=mlogit.v4.data, reflevel="1")
2009 Mar 08
0
[LLVMdev] addPassesToEmitFile
Well, I've been before hours trying this, but soon after I sent the
email I found something. However is quite intriguing.
I just changed the order of and the static libraries that I was linking.
How can this be possible??
I'm using Cmake for building my llvm projects, so I choose the order
and I pick the .a libraries I want to link by hand...
Thank you,
alvaro
2009/3/8 Álvaro
1998 Nov 28
0
Survival and Hazard Analysis
Hi,
I forgot to add to my initial message that I am using Windows 98 (if it's
relevant).
I need to perform survival analysis and could not find the S+ functions:
- survfit (fits a Kaplan-Meier survival curve), or
- coxph (fits a Cox proportional hazards model)
in R. Are there any alternative functions available?
Thanks,
Alvaro
-- -- -- -- -- -- -- --
Alvaro A. Novo
1999 Mar 10
1
persp( )
Hi,
I would like to confirm w/ the other members if the function persp( ) has
limitations such as not being able to label the axis... or, am I missing
something?
?persp seems to indicate that's not available, but...
Alvaro
-- -- -- -- -- -- -- --
Alvaro A. Novo
2116 S. Orchard St., #304
2010 Nov 02
1
Setting the names of a data.frame
I have tData as below. I need to set the names with the headers from the
first row in sHeaders
Sorry .. forgot how to set the names from row in another data frame .. pls
advise.
names(tData) = sHeaders[1,] does not work correctly
Also, why doesn't drop.levels(sHeaders) not work?
dput(tData)
structure(list(V1 = structure(c(3L, 1L, 1L, 2L), .Label = c("P H Ravi
Kumar",
"Rahul
2003 Apr 01
1
Shafer's MI software for S-plus
Greetings folks,
Shafer's S-plus package "norm" for multiple imputation of
missing values in multivariate normal data has been most
kindly and usefully ported to R by Alvaro A. Novo.
Shafer's website
http://www.stat.psu.edu/~jls/
lists four S-plus packages in all:
NORM - multiple imputation of multivariate continuous data
CAT - multiple imputation of multivariate
2009 Mar 31
3
Factor Analysis Output from R and SAS
Dear Users,
I ran factor analysis using R and SAS. However, I had different outputs from
R and SAS.
Why they provide different outputs? Especially, the factor loadings are
different.
I did real dataset(n=264), however, I had an extremely different from R and
SAS.
Why this things happened? Which software is correct on?
Thanks in advance,
- TY
#R code with example data
# A little