Displaying 20 results from an estimated 10000 matches similar to: "An index of all possible combinations of variables in a data fram e"
2017 May 19
4
memcmp code fragment
Hi,
Look at the following code:
Look at the following C code seqence:
unsigned char mainGtU ( unsigned int i1,
unsigned int i2,
unsigned char* block)
{
unsigned char c1, c2;
c1 = block[i1]; c2 = block[i2];
if (c1 != c2) return (c1 > c2);
i1++; i2++;
c1 = block[i1]; c2 = block[i2];
if (c1 != c2) return (c1 > c2);
i1++; i2++;
..
..
2009 Apr 09
5
data.fram zero's
Hi all,
A simple question which I don???t seem to be able to solve:
I want to make a data.frame of 360 rows and 94228 column with only zero???s
without having to type all these zero???s ;-)
What is the easiest method?
Thanks,
Naomi
Disclaimer: De informatie opgenomen in dit bericht (en bijlagen) kan
vertrouwelijk zijn en is uitsluitend bestemd voor
2005 Feb 11
2
Notes on bug reports 3229 and 3242 - as.matrix.data.fram e
> From: Gorjanc Gregor
>
> ! Look after character !
>
> From: Prof Brian Ripley [mailto:ripley@stats.ox.ac.uk]
> You too have not give an reproducible example!
> ! Yes, I was not able to do it from my data. But bellow is one. It is
> ! a stupid one, but it works. The problem is use of as.data.frame in
> ! tmp1$L <- as.data.frame(tmp$L). This looks like to produce
2011 Jul 12
3
Reorganize data fram
Hi,
I have a data frame of about 700 000 rows which look something like this:
Date Temperature Category
2007102 16 A
2007102 17 B
2007102 18 C
but need it to be:
Date TemperatureA TemperatureB TemperatureC
2007102 16 17 18
Any suggestions?
/Angelica
--
View this message
2008 Jul 02
2
Accessing a field in a data fram
raw <- read.csv(file=filename, head=TRUE,sep=",")
I've read in a csv file, and I'm looking to access a column whose name is
held in a string.
For example, I want to access raw$one or raw$two, but this will depending on
the string. Let's say that the string is decision<-"one". How would I access
raw$one?
The following doesn't work:
2002 Sep 03
1
about fram buffer & twm cursor!!
Dear all,
I have two questions under syslinux.
First. When I start the system with syslinux, some messages
display on the screen and want me to enter display mode
to show or enter "scan" the scan the display resolution.
If I made anything wrong?
Second. I used the same kernel image as above and different cpu
care(SBC), It can work perfectly
2005 Sep 16
1
De-data.fram-ize?
Dear useRs,
Is there any more elegant way to convert dataframe to a vector of all
its values than as.vector(as.matrix(x)) ? I did not have to do such
conversion yet, so I am not sure... (of course as.vector() alone does
not work).
Regards,
--
Lukasz Komsta
Department of Medicinal Chemistry
Medical University of Lublin
Jaczewskiego 4, 20-090 Lublin, Poland
Fax +48 81 7425165
2007 May 11
1
conditional across frames of a data fram
I'm a newbie, so please forgive me:
I have a data frame that includes two long columns of x and y coordinate
values thusly:
... ... ... x y ... ...
... ... ... 115 127 ... ...
... ... ... 120 129 ... ...
... ... ... 0 0 ... ...
... ... ... 135 162 .... ...
ect...
i need to ask R tell me how many x-y pairs contain coords that are
2013 Feb 16
6
Extracting Numeric Columns from Data Fram
Hello,
I've got a data frame with a mix of numeric, integer and factor columns.
I'd like to pull out (or just operate only on) the numeric/integer columns.
Every thing I've found in searches is about how to subset by rows,
or how to operate assuming you have the column names. I'd like to pull
by type.
Thanks!
Barry
[[alternative HTML version deleted]]
2011 Dec 28
1
Probability Question
Hello,
This is a question from a class I'm not in (it's also winter break). But,
all the same, I don't know where to start in R with this. It's supposed to
be done in R. So, can anyone direct me with a helpful hint or 2, on how to
get started with the question listed below, or tell me how I can re-post
this to Usenet groups sci.stat.consult., so they can help with this
question:
2012 Aug 05
3
Memory limit for Windows 64bit build of R
Dear all
I have a Windows Server 2008 R2 Enterprise machine, with 64bit R installed
running on 2 x Quad-core Intel Xeon 5500 processor with 24GB DDR3 1066 Mhz
RAM. I am seeking to analyse very large data sets (perhaps as much as
10GB), without the addtional coding overhead of a package such as
bigmemory().
My question is this - if we were to increase the RAM on the machine to
(say) 128GB,
2008 Jan 22
12
rollbacks
Has anyone done rollbacks with puppet?
The story goes that last night I pushed a change out, which
intentionally changed the way certain services where managed. The
change involved pushing out a few files, cronjobs, etc., which was okay
until it was discovered there was a bug with the service.
My configurations are kept in subversion and rolling back to a previous
configuration would have
2007 Dec 17
5
question about 0.24.0
I see in the changelog that:
You now must specify an environment and you are required to specify
the valid environments for your site. (#911)
Does this mean that the puppetmaster has to be updated before clients
work correctly?
I ask because I''m testing out a client upgrade to 0.24.0 (server is
still 0.23.2) and this is what I''m seeing:
[~]% sudo /foo/bin/puppetd
2005 Nov 03
4
merging dataframes
Dear List,
I often have to merge two or more data frames containing unique row
names but with some columns (names) common to the two data frames and
some columns not common. This toy example will explain the kind of setup
I am talking about:
mat1 <- as.data.frame(matrix(rnorm(20), nrow = 5))
mat2 <- as.data.frame(matrix(rnorm(20), nrow = 4))
rownames(mat1) <- paste("site",
2004 Oct 07
8
Equivalents of Matlab's 'find' and 'end'
Sorry if these questions have been asked recently--I'm new to this list.
I'm primarily a Matlab user who is attempting to learn R and I'm searching for possible equivalents of commands that I found very handy in Matlab. So that I don't seem ungrateful to those who may answer, I HAVE determined ways to carry out these processes in 'brute force' sorts of ways in R code,
2007 Jun 20
5
0.23 question
I think that I''m running into the warning on external node support here but
after a recent upgrade for my puppetmaster I get:
puppetmasterd[19397]: Could not find aa0-006-4.foo.com with names
aa0-006-4.foo.com, aa0-006-4
I''ve not changed puppetd.conf which contains:
ldapnodes = true
ldapserver = my.ldap.foo.com
ldapbase = ou=hosts,dc=foo,dc=com
I''ve not
2007 Oct 12
7
puppetd dies?
Greetings all,
My deployment of puppet includes a monitrc to make sure that puppetd stays
up and running. It seems like (across all of my hosts) that pupeptd will
end up dying and restarted by monit. I''m running puppetd under a screen
session now on one particular host with --debug --verbose to see if any
thing comes out on console but until it happens again, any anybody else
2004 Sep 13
1
pairwise deletion of missing cases in lm
Does anybody know if there is some sort of "pairwise" option for handling
missing cases in lm and computing the relevant statistics?
I would be much obliged if anyone could help...
Regards
Alan Simpson
Roberts Research Group
2007 Oct 02
2
Ordering of names on X- and Y-axis
Hi,
I am new to R.
I have a bit of data looking like this:
SemType, Length
GeoLocation, Sentence
GeneralInfo, Paragraphs
GeneralInfo, Paragraphs
GeneralInfo, Sentence
GeneralInfo, Paragraphs
NatLang, Phrase
Advice, Article
GeneralInfo
Advice, Article
Resource, Sentence
...
(roughly 40,000 lines in total)
I am interested in how many counts of each item in the second row I get for
each item in
2012 May 07
2
how to deduplicate records, e.g. using melt() and cast()
Esteemed UseRs,
This must be embarrassingly trivial to achieve with e.g., melt() and
cast(): deduplicating records ("pw.X" in example) for a given set of
responses ("cond.Y" in example).
Hopefully the runnable example shows clearly what i have and what i'm
trying to convert it to. But i'm just not getting it, ?cast that is! So
i'd really appreciate some ones