Displaying 20 results from an estimated 49 matches for "woburn".
2002 Jun 20
4
how to skip NA columns ?
...[,1] [,2] [,3]
[1,] 1 NA 7
[2,] 2 NA 8
[3,] 3 NA 9
> t(na.omit(t(o)))
[,1] [,2]
[1,] 1 7
[2,] 2 8
[3,] 3 9
Ryszard Czerminski phone: (781)994-0479
ArQule, Inc. email:ryszard at arqule.com
19 Presidential Way http://www.arqule.com
Woburn, MA 01801 fax: (781)994-0679
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r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subje...
2006 Dec 04
2
Library file for the R engine in Windows?
...book mentions that a library Rdll.lib needs to be built
from source, but I am not sure
if this is still the recommended route.
I am using Microsoft Visual C++ Toolkit in Windows XP Pro.
Thank you for any advice.
Christos Hatzis, Ph.D.
Nuvera Biosciences, Inc.
400 West Cummings Park
Suite 5350
Woburn, MA 01801
Tel: 781-938-3830
www.nuverabio.com <http://www.nuverabio.com/>
[[alternative HTML version deleted]]
2008 Nov 26
2
Installing packages based on the license
...ld like to avoid any possibility of a mistake in the future.
Is there some clever combination of grep and install.packages that I could use to limit my downloads to, say, GPL-only packages?
Thanks,
Ted
Ted Mendum | Senior Scientist
Warner Babcock Institute for Green Chemistry
66 Cummings Park, Woburn, MA 01801
p:?? 781-937-9000??
f: 781-937-9001
ted.mendum at warnerbabcock.com
www.warnerbabcock.com
2007 Dec 11
5
book on regular expressions
...egular expressions with focus on
applications/use as it might relate to R. I remember there was a mention of
such a reference book recently, but I could not locate that message on the
archive.
Thanks.
-Christos
Christos Hatzis, Ph.D.
Nuvera Biosciences, Inc.
400 West Cummings Park
Suite 5350
Woburn, MA 01801
Tel: 781-938-3830
www.nuverabio.com <http://www.nuverabio.com/>
[[alternative HTML version deleted]]
2006 Dec 24
2
how to 'get' an object that is part of a list
....length(xx$a)
Error in get(x, envir, mode, inherits) : variable "xx$a" was not found
> my.length(xx$a, xx$b)
Error in get(x, envir, mode, inherits) : variable "xx$a" was not found
Thank you.
Christos Hatzis, Ph.D.
Nuvera Biosciences, Inc.
400 West Cummings Park
Suite 5350
Woburn, MA 01801
Tel: 781-938-3830
www.nuverabio.com
2003 Feb 01
2
Apparent parser problem (PR#2520)
...tatus
major 1
minor 6.2
year 2003
month 01
day 10
language R
Cheers,
Jim Rogers
James A. Rogers, Ph.D. <rogers@cantatapharm.com>
Statistical Scientist
Cantata Pharmaceuticals
3-G Gill St
Woburn, MA 01801
617.225.9009
Fax 617.225.9010
2002 Jun 20
16
problem with predict()
...my output:
#
# length(yr) = 164 ; length(pr) = 164
# dim(xr) = 164 118 ; dim(xs) = 35 118
# length(ys) = 35 ; length(ps) = 164
# why length(ps) != length(ys) ???
Ryszard Czerminski phone: (781)994-0479
ArQule, Inc. email:ryszard at arqule.com
19 Presidential Way http://www.arqule.com
Woburn, MA 01801 fax: (781)994-0679
-----Original Message-----
From: Czerminski, Ryszard [mailto:ryszard at arqule.com]
Sent: Thursday, June 20, 2002 12:15 PM
To: r-help at stat.math.ethz.ch
Subject: [R] dist(a,b) ???
Is there a function analogous to "dist" which would
calculate distance...
2011 Dec 08
0
Mark Killingback is out of the office.
...lease contact 01603 630684.
<a href="http://www.pacificgroup.co.uk">http://www.pacificgroup.co.uk </a>
Tel: 01603 630684
Fax: 01603 617930
This email is subject to our email disclaimer
Pacific Limited
Registered in England and Wales No. 02374293
Registered Office: 1st Floor, Woburn House, 84 St Benedicts Street, Norwich, Norfolk, England,
NR2 4AB
Pacific (Norwich) Limited
Registered in England and Wales No. 02208246
Registered Office: 1st Floor, Woburn House, 84 St Benedicts Street, Norwich, Norfolk, England,
NR2 4AB
Authorised and regulated by the Financial Services Authori...
2007 May 16
2
'attach workspace' on R console File menu
...orkspaces, e.g.
--------------------
Attach Workspace...
Load Workspace...
Save Workspace...
--------------------
Is this something that could make the wish list for future R Console
features?
Thanks.
-Christos
Christos Hatzis, Ph.D.
Nuvera Biosciences, Inc.
400 West Cummings Park
Suite 5350
Woburn, MA 01801
Tel: 781-938-3830
www.nuverabio.com <http://www.nuverabio.com/>
2006 Oct 24
2
Plotmath expression
...t inside the expression but that did not work either:
ll.txt <- paste(ll, collapse="+/-")
text(x=9, y=2, pos=2, expression(paste(X[min], "=", ll.txt)))
Any help is much appreciated.
Thanks.
Christos Hatzis, Ph.D.
Nuvera Biosciences, Inc.
400 West Cummings Park
Suite 5350
Woburn, MA 01801
Tel: 781-938-3830
www.nuverabio.com
2007 Feb 01
3
Lining up x-y datasets based on values of x
...xx >= x[1,1] & xx <= x[10,1], 2 ] <- x[,2]
w[ xx >= y[1,1] & xx <= y[10,1], 3 ] <- y[,2]
w[ xx >= z[1,1] & xx <= z[10,1], 4 ] <- z[,2]
w
I appreciate any pointers.
Thanks.
Christos Hatzis, Ph.D.
Nuvera Biosciences, Inc.
400 West Cummings Park
Suite 5350
Woburn, MA 01801
Tel: 781-938-3830
www.nuverabio.com
2003 Feb 28
2
Lexical scoping question
...s indeed
bound to the value 2 in both cases:
es <- lapply(fs, environment)
ys <- lapply(es, function(env) get("y", env)) # list(2, 2)
?
Thanks for help,
Jim Rogers
James A. Rogers, Ph.D. <rogers at cantatapharm.com>
Statistical Scientist
Cantata Pharmaceuticals
3-G Gill St
Woburn, MA 01801
617.225.9009
Fax 617.225.9010
2007 Feb 07
2
blank upper or lower triangle of cor-matrix
Dear altogether,
I want to blank the lower (or upper) part of a correlation matrix as it
is done by dist()
example:
( d <- cor(matrix(runif(12),nrow=4)) )
If I do the following
d[lower.tri(d)] <- ""
of course everything is changed to character - that's not what should be.
Additionally, it does not work to assign "0" or anything else. The same
is true for
2002 Dec 06
2
Mutiple page trellis plots with relation = "free" or "sliced"
...gw32
status
major 1
minor 6.1
year 2002
month 11
day 01
language R
Jim Rogers
James A. Rogers, Ph.D. <rogers at cantatapharm.com>
Statistical Scientist
Cantata Pharmaceuticals
3-G Gill St
Woburn, MA 01801
617.225.9009
Fax 617.225.9010
2006 Nov 20
2
predict.coxph
Hi everyone,
Can anyone give me more details about the 'lp', 'risk', 'terms', and 'expected'
options from the predict.coxph function?
I actually found that risk is obtained from exp(lp). I can't find information on
'expected' type however. Is anybody can expand the information on this function?
Thank you in advance, I will appreciate it.
2006 Dec 03
1
passing matrix as argument to a C function
...t will use in some way
the "vector of pointers to row vectors" concept, but I am not familiar
enough in C yet to figure it out. Any hints on how in can be done with
.Call if easier?
Thank you.
-Christos
Christos Hatzis, Ph.D.
Nuvera Biosciences, Inc.
400 West Cummings Park
Suite 5350
Woburn, MA 01801
Tel: 781-938-3830
www.nuverabio.com <http://www.nuverabio.com/>
2009 Sep 10
1
importing/loading package without a namespace
...: qcc
Error : package 'qcc' does not have a name space
Error: package/namespace load failed for 'nvQC'
Execution halted
It looks like this package has a loading problem: see the messages for
details.
Christos Hatzis, Ph.D.
Nuvera Biosciences, Inc.
400 West Cummings Park
Suite 5350
Woburn, MA 01801
Tel: 781-938-3830
www.nuverabio.com <http://www.nuverabio.com/>
2007 Feb 01
1
Loading functions in R
Hi all,
This information must be out there, but I can't seem to find it. What I
want to do is to store functions I've created (as .R files or in
whatever form) and then load them when I need them (or on startup) so
that I can access without cluttering my program with the function code.
This seems like it should be easy, but....
Thanks!
Jeff
2007 Feb 02
1
Adding Histograms to Leaves of Rpart Tree or other Dendrogram
Hi - I'm trying to append simple density histograms of a continuous
variable to the leaves of an rpart tree.
The splits in the tree are all levels of a factor and I'm hoping to make
the histograms out of the subsets of the dataframe corresponding to the
splits and for them to be attached to the appropriate leaf of the final
tree.
Any help would be much appreciated,
thanks,
Jon Zelner
2007 Oct 09
1
Visualize cox proportional hazards
Hello all
I would like to visualize the hazard ratios of a cox proportional
hazards model. I have seen some good examples in the New England
Journal of Medicine:
http://content.nejm.org/cgi/content/short/353/26/2747/F3
http://content.nejm.org/cgi/content/short/350/26/2654/F2
(I hope these are open access, but I am not sure)
And something similar in the book 'R Graphics' by Paul