Displaying 20 results from an estimated 5000 matches similar to: "runs of heads when flipping a coin"
2005 Jul 10
3
not supressing leading zeros when reading a table?
Dear R list,
I have a dataset with a column which should be read as character, like this:
name surname answer
1 xx yyy "00100"
2 rrr hhh "01"
When reading this dataset with read.table, I get
1 xx yyy 100
2 rrr hhh 1
The string column consists in answers to multiple choice questions, not all
having the same number of answers. I could format the
2009 Aug 31
4
Offtopic, HT vs. HH in coin flips
Dear R-help,
Could someone please try to explain this paradox to me? What is more likely to show up first in a string of coin tosses, "Heads then Tails", or "Heads then Heads"?
##generate 2500 strings of random coin flips
ht <- replicate(2500,
paste(sample(c("H", "T"), 100, replace = TRUE),
collapse =
1999 May 27
2
Can't connect to samba from foreign network --- 'Gethostbyaddr failed' error in log.smb
I have a samba server at ip address
aaa.bbb.ccc.ddd
I can connect to it from clients on subnets aaa.bbb.eee. and
aaa.bbb.fff.
I can't connect to it from clients on ggg.hhh.
smb.conf has
hosts deny = all
hosts allow = localhost, aaa.bbb., ggg.hhh.
The client can successfully 'ping mysambaserver' (resolves to
aaa.bbb.ccc.ddd). Doing 'net view \\mysambaserver' fails with
2002 Feb 11
1
graph history
Hi everybody.
I was just wondering if this is a bug or I am simply doing something wrong.
Here is what happened:
(1) I typed windows() to get the graph menu bar
(2) I turned record on history menu
(3) I created a couple of plots
(4) I checked with PageUp and PageDown that I can scroll through them
(5) I saved the history to a variable, say, hhh
(6) I dumped hhh to a file called hhh.R
(7) I quit
2015 Dec 18
2
Problem! Dovecot 2.2.9 does not send the information on ending the quota to user
Hi.
I have Dovecot + Postfix + MySQL.
Version of Postix: postfix_2.11.3-1ubuntu1_amd64
Version of Dovecot: 2.2.9
Operations system is: Ubuntu 15.04 x64
Postfix have patched (patch VDA - http://vda.sourceforge.net) for using
with quota, it means that file "maildirsize" in mail directory already
exists and changed when add/delete mail.
Quota for virtual box take in MySQL db.
2010 Mar 29
4
iptables rules
I've got a server with several ip's on eth0. I want to block all traffic
*except* to port 80 on them, but not on any other IPs, so that
eth0 is www.xxx.yyy.zzz
eth0:1 is www.xxx.yyy.ggg
eth0:2 is www.xxx.yyy.hhh
I've tried
-A RH-Firewall-1-INPUT -p tcp -d www.xxx.yyy.ggg --dport ! 80 -j DROP
-A RH-Firewall-1-INPUT -p tcp -d www.xxx.yyy.hhh --dport ! 80 -j DROP
and restarted (and
2009 Oct 15
1
calculating p-values by row for data frames
Hello R-users,
I am looking for an elegant way to calculate p-values for each row of
a data frame.
My situation is as follows:
I have a gene expression results from a microarray with 64 samples
looking at 25626 genes. The results are in a data frame with the
dimensions 64 by 25626
I want to create a volcano plot of difference of means vs. ?log(10) of
the p-values,
comparing normal samples to
2012 Feb 20
2
Help on lattice barchart ploting
Hi friends,
I have following data and would like to plot this with barchart() availble
with lattice package.
RsID Freqs Genotype
AAA 63.636 1/1
AAA 32.727 1/2
AAA 3.636 2/2
BBB 85.965 2/2
BBB 14.035 2/1
CCC 63.158 1/1
CCC 21.053 1/2
CCC 15.789 2/2
DDD 26.786 2/2
DDD 46.429 2/1
DDD 26.786 1/1
EEE 32.759 2/2
EEE 43.103 2/1
2009 Feb 26
2
asterisk 1.6.0.5 and IM
hi all,
i have 2 x-lite version 3.0 softphones configured on extension 9000 and 9005.
i have one call the other and then try and send an IM between them using
the x-lite IM facility.
the asterisk console shows the message...
WARNING[27193]: chan_sip.c:11866 receive_message: Received message to
"s"9005 at hhh> from "c"9000 at hhh>;tag=717de473, dropped it...
when i
2010 Aug 29
2
OSX 10.6.4 error with -R option
Hi All,
I have had reports of problems with the -R option on OSX 10.6.4.
Just tested it myself and found this odd result:
When I run this
"dtruss -f path/to/rsync -aHAXNR --fileflags --force-change --protect-decmpfs --stats -v /Users/astrid/Documents/main.m /Users/astrid/Desktop/rrr
it produces the expected results with the relative folder paths in place
2004 Oct 25
1
Scoping and nls.
A colleague of mine is trying to use nls() to effect an optimization,
and is encountering a scoping problem. I should know how to solve it
for him but .... well, I just don't.
I also had a quick scrounge of the archives --- I know I've seen this
topic addressed before --- but I couldn't track it down.
So here's a toy example that demonstrates the problem:
hhh <-
2017 Oct 31
2
Help with Nesting
How do i resolve this?
symbol <- c('RRR' ,'GGG')
for(i in seq_along(symbol)) {
dat <- Quandl("LLL/symbol[i]")
}
required solutionis a loop where Quandl is a function and it loops as flows,
Quandl("LLL/RRR")
Quandl("LLL/GGG")
2013 Mar 27
1
Pattern matching repeating digits
'lo, all,
Is there some (possibly undocumented?) way that I can pattern-match on a specified number of repeating digits? (Something similar to regular expressions' {})
Here's an example: let's say I have a string of things that need to be done for both extensions 233 and 255. I can either...
A) Repeat the exact same code for both extensions, like so:
exten =>
2010 Jan 28
2
src/library/grid/src/grid.c (PR#14199)
At around line 2590, in function gridRect() in
src/library/grid/src/grid.c (at the latest svn revision, 50745), ought
not temp, www and hhh to be PROTECTed within this block?
Andrew
2004 Mar 30
1
Windows client using UPPERCASEto connect to Samba3.02aserve
Hi again and thanks
I'm using WinNT 4.0 as my network PDC. The Samba server is only a member
server.
Any idea how to solve this issue?
Thanks,
Miki
> -----Original Message-----
> From: Nigel Marsh [SMTP:Nigel.Marsh@first-linux.com]
> Sent: Mon, March 29, 2004 11:59 AM
> To: samba@lists.samba.org
> Subject: Re: [Samba] Windows client using UPPERCASEto connect to
>
2012 Jan 08
2
uid / gid and systemusers
Hi all,
I'm facing a problem when a user (q and g in this example) is logging into dovecot. Can anybody tell some hint?
Thanks in advance.
George
/var/log/mail.log:
...
Jan 8 16:18:28 test dovecot: User q is missing UID (see mail_uid setting)
Jan 8 16:18:28 test dovecot: imap-login: Internal login failure (auth failed, 1 attempts): user=<q>, method=PLAIN, rip=AAA.BBB.CCC.DDD,
2011 Oct 31
2
one sample Wilcoxon test using 'coin'
Hi,
R allows me to run a one sample Wilcoxon test like this:
wilcox.test(c(1,3.5,2.1,4,1.5,5), mu=2, exact=TRUE)
The function 'wilcoxsign_test' from the package 'coin' should (I
suppose) be able to calculate exact p values even if there are ties in
the ranks. However, I couldn't find information on how to run a one
sample test using 'wilcoxsign_test' like in the
2010 Apr 22
2
Jonckheere-Terpstra test using coin package?
Is it possible to implement the Jonckheere-Terpstra test for ordered
alternatives using the coin package: Conditional Inference Procedures
in a Permutation Test Framework?
I found jonckheere.test{clinfun}, but it uses a normal approximation
when ties are present in the data. To make this concrete, I've
include
a small dataset. Thanks. --Dale
Hollander and Wolfe, 1999 Table 6.6, pg 205
2009 Nov 02
2
a prolem with constrOptim
Hi,
I apologize for the long message but the problem I encountered can't be stated in a few lines.
I am having some problems with the function constrOptim. My goal is to maximize the likelihood of product of K multinomials, each with four catagories under linear constraints on the parameter values. I have found that the function does not work for many data configurations.
#The likelihood
2009 Oct 25
1
A naive question about permutation tests in the coin package
Dear R helpers,
I am trying to understand how to use the independence_test function in
the coin package. I think I suffer from a misunderstanding about what
the package does. Either that or I do not understand how to use it
properly. Specifically, I cannot understand if I can test independence
of arbitrary statistics.
Take the following example:
set.seed(10)
d <- data.frame(y = c(rnorm(10,