similar to: Tell the difference between characters

Displaying 20 results from an estimated 10000 matches similar to: "Tell the difference between characters"

2010 Jan 25
5
Data transformation
Dear all, I have a dataset that looks like this: x <- read.table(textConnection("col1 col2 3 1 2 2 4 7 8 6 5 10"), header=TRUE) I want to rewrite it as below: var1 var2 var3 var4 var5 var6 var7 var8 var9 var10 1 0 1 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 1 0 0
2011 Apr 27
4
Pause the execution of a function
Dear all, I am trying to write a script to pause the execution of a function and provide some additional commands to the function and then continue execution of the function. For example, when my function detects a wrong number in a dataset, the function pauses automatically and returns information on the screen: ?There is a wrong number in the dataset. Would you like to correct it? ? If I
2010 Jan 08
4
Arguments of a function
Dear all, I have a question about how to set arguments in my own function. For example, I have a function that looks like this: my.f <- function(a = x1, b = x2) { x1 = equation 1 x2 = equation 2 x3 = equation 3 y = a + b } x1, x2, and x3 are temporary variables (intermediate results) calculated from other variables within the funciton. I want to use two of these three
2009 Dec 03
3
dataset index
Hello, All, I have a dataset that looks like this: x <- matrix(c( 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 2, 1, 1, 2, 1, 1, 3, 1, 1, 3, 1, 1, 3, 1), ncol = 5, byrow = T, dimnames = list(1:10, c("gender", "race", "disease"))) I want to write a function to produce several matrices including only ?TRUE? and ?FALSE? for the different levels of the
2010 Jan 25
2
Delete components of a list
Dear all, I have a question about deleting components of a list. For example, I have a list that looks like this: [[1]] var1 var2 var3 1 3 4 2 2 1 [[2]] var1 var2 var3 2 5 1 2 1 7 [[3]] var1 var2 var3 1 6 7 3 8 4 How to delete, say, the first columns of the list or the second rows? Thank in advance. Lisa -- View
2011 Jun 01
5
Recode numbers
Dear all, I have two sets of numbers that look like a <- c(1, 2, 3, 3, 4, 4, 5, 6, 1, 2, 2, 3, 1, 2, 1, 2, 3, 3, 4, 5, 1, 2, 3, 4) b <- c(1, 5, 8, 9, 14, 20, 3, 10, 12, 6, 16, 7, 11, 13, 17, 18, 2, 4, 15, 19) I just want to use ?b? to encode ?a? so that ?a? looks like a1<- c(1, 5, 8, 8, 9, 9, 14, 20, 3, 10, 10, 12, 6, 16, 7, 11, 13, 13, 17, 18, 2, 4, 15, 19) Does anyone have a
2009 Dec 15
2
Reconstruct a dataset
Dear all, I have a dataset that looks like this: inividual var1 var2 ? 1 1 1 ? 2 1 2 ? 3 2 1 ? 4 2 2 ? ? ? ? ? I will random sample 2 individuals from this dataset based on a set of random numbers, e.g., rn1 <- c(0, 0, 1, 1), rn2 <- c(0, 0, 2, 0), rn3 <- c(1, 0, 0, 1), rn4 <-
2011 May 26
3
Suppress intermediate results on console
Dear all, I have a question about how to suppress intermediate results in a function on console. For example, I will use summary() in my own function that looks like: myfunction <- function(?) { ? Summary(x) ? } Then myfunction() will print ?x? on console that is intermediate result and doesn?t need showing. Does someone have any idea or any suggestion? Thank you in advance. Lisa
2009 Dec 04
1
User's function
Hello, All, I want to write a function to do some works based on the arguments. For example, bind some variables (arguments) as this: myfunction <- function(arg1, arg2, arg3, ?) { x <- cbind(arg1, arg2, arg3, ?) } myfunction(arg1, arg2, arg3, ?) The function can automatically determine the number of arguments and bind them, which means if I assign 2 arguments, the function can bind
2011 Mar 18
3
Arguments of a function
Hi, everybody, I just want to pass arguments to a function as below: range <- c(0.1, 0.5) runif(1, range) But it doesn?t work. Does anyone have any suggestions to offer? Thanks. Lisa -- View this message in context: http://r.789695.n4.nabble.com/Arguments-of-a-function-tp3387643p3387643.html Sent from the R help mailing list archive at Nabble.com.
2009 Nov 24
5
Split column
Hello, R users, I have a dataset that looks like this: id var1 var2 1 1 3 2 3 1 3 2 1 4 1 2 5 2 3 I want to split one column to two columns with 1 = 1 and 1, 2 = 1 and 2, 3 = 2 and 2: id var1.1 var1.2 var2.1 var2.2 1 1 1 2 2 2 2 2 1 1 3 1 2
2011 Mar 21
1
Randomly generating data
Hi, everybody, I have a problem and need your help. There are two columns that look like this: [1,] "t" "f" [2,] "f" "t" [3,] "t" "f" [4,] "t" "t" [5,] "f" "f" I just want to generate the third column based on these two columns. First, I randomly choose one of the two columns,
2004 Dec 02
1
SJava convert problem
Consider this Java class: class myClass { final public static String[] testString () { return new String[]{"my", "name", "is"} ; } final public static int[] testInt () { return new int[]{5, 10, 15}; } final public static char[] testChar () { return new char[]{'x', 'y', 'z'}; } }
2011 Apr 27
2
multiple comparisons on a between factor
Dear list, im facing an issue of statistical data analysis that I consider myself unable to resolve in R so i hope to get some valuable insights from you. i run an ANOVA with four factors; factor4 is an between factor (two different groups measured), the others are withins (tested across /all/ subjects). accordingly, my model looks as follows: fm1
2003 Jul 08
3
Characters and Numeric Values in One Matrix
Dear R-Users, I want to ask a question for a colleague of mine. He wants to put a character vector and a numeric vector into one matrix and still have the old character and numeric type for the respective columns. Unfortunately, I am just starting using R and I could not help him. Is there an easy and straightforward way to do this in R? Maybe a little example facilitates understanding our
2002 Aug 20
1
winbind initgroups problem with 2.2.5 on RH 7.2
Hello, I am trying to get winbind up and working for logins. Here is my error message from /var/messages: Aug 20 20:59:51 aslan pam_winbind[32713]: user 'lisa.snow' granted acces Aug 20 20:59:51 aslan pam_winbind[32713]: user 'lisa.snow' granted acces Aug 20 20:59:51 aslan login[32713]: initgroups: Operation not permitted Here is my pam.d/login file: #%PAM-1.0 # orginal before
2006 Aug 03
3
(no subject)
Hey everyone, I'm trying version 1.0rc2, via the rpm at ATrpms. I'm running on CentOS 4.3 on an Opteron system. I have this running stably on a 32 bit system, but I'm crashing constantly on a 64 bit system. Here's what I'm getting in my mail logs when I try to log in via IMAP: Aug 3 15:01:21 lisa dovecot: imap-login: Login: user=<scottz>, method=PLAIN,
2011 May 01
8
LISA finite element in wine
I want to use LISA finite element program (http://www.lisa-fet.com/) under my Ubuntu machine. I did install Wine and it runs ok, then I install LISA and it installed without any error. However whrn I run LISA, it did not appear on the screen without any error? Anyone can assist how to me LISA running?
2006 Jan 09
12
Shorewall blocks LISa on port 7741
Hello, all. I''ve been trying to get shorewall to get LISa working on my Gentoo box. It works as long as I have shorewall turned off, but whenever I turn it on, it seems to block all LISa activity. I have TCP port 7741 opened (as per lisa-home.sourceforge.net), and nmap says it''s open. Ethereal indicates that LISa is communicating via TCP port 7741, from 127.0.0.1 to
2007 Jan 18
9
Problem with VLANs on tg3 NICs
I have 3 machines, T60 thinkpad with e1000 NIC Dell PowerEdge 2950 with bnx2 NIC HP DL360 G4P with tg3 NIC All running xen 3.03 / 2.6.16.29-xen I have a netbootable image with 2.6.16.29-xenU. This image when it boots creates a vlan eth0.4002, and then tries to communicate on that interface to a central server. On the machines with e1000 an bnx2 NICs, this works fine. On the