Displaying 20 results from an estimated 100 matches similar to: "function inside ifelse"
2009 May 29
4
logical vector as a matrix
I have a vector like this:
h <- c(4, 6, NA, 12)
and I create the secound logical vector like this:
g <- c(TRUE, TRUE, FALSE, TRUE)
And my problem is that I would like to get a new "m" vector as a rasult "h"
and "g"( as dot-matrix printer) but with missed "NA" value, for example:
m = (4,6,12)
Do you have any idea?
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2009 Apr 29
2
library which convert dates
I'm looking for library which let mi convert dates
for example like this:
00-06-05 00:00
00-08-06 00:00
00-08-16 00:00
00-05-23 00:00
00-01-14 00:00
00-10-28 00:00
and as a result I want to get a 3 levels
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2009 Jun 01
3
Editor R
Do you know any good editor R?
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2009 Jun 01
2
add values inside vector
I think it's easy problem but I can't find solution.
I have a vector:
vec <- c (23.4, 3.0, 14.7, 7.7)
and I would like to add all values which are inside my vector to each
other.
as a result a want to get one value like sum all values from my vector-
sth=(23.4 + 3.0 + 14.7 + 7.7)
PS. I usually don't know how long is my vector in my function
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2009 May 14
2
I want to avioid unnecessary value
I have a database like this:
"kol1";"kol2";"kol3" ...
"2";"5";"9"
"9";"6";"6"
"4";"6";"5"...
I looking for a kod in R which let mi aviod in column unnecessary value, for
example number "9".
So, if I have:
Kol1
2
9
4
4...
after loop in R I would like to get my
2009 Jun 14
3
if + is.na
Hello!
I wont to use a function is.na()
I have two vectors:
> a=c(1,NA,3,3,3)
> b=c(0,0,0,0,0)
and when I use is.na function it's ok:
> is.na(a)
[1] FALSE TRUE FALSE FALSE FALSE
but I would create sth like this:
for i in 1:length(a){
if (wsp[i] == is.na(a)) {b=43}
}
or like this
if(is.na(a)) b=3 else a
[1] 1 NA 3 3 3
but I always get an error:
the condition has
2008 Apr 30
2
Can R do rts (Regular Time Series) like S-Plus?
Dear readers,
S-Plus have a rts function (Regular Time Series), which is used like so:
fveks<-read.csv('http://louise.hoffman.googlepages.com/veks.csv',header=TRUE,sep=',')
attach(fveks)
acf(ts.intersect(rts(HC.f),rts(Ta.f),rts(GR.f),rts(W.f)))
Warning the csv file is 750kB.
Can the same be done in R?
Lots of love =)
Louise
2010 Jan 06
1
math function - MDS method
Hi,
I need math function which is used in: isoMDS, Sammon and metaMDS method.
Anybody know where I may find it? Any manual or webside?
I would be very happy
Thanks a lot !
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2009 Apr 19
1
data$ID -> I always get a NULL
I have database write as .csv file.
When I want to get sth from my database I get NULL, but I know that there is
sth!
For example:
> data$ID
NULL
> data$kod
NULL
but command like below is always recognize by R
> data[2,3]
[1] '082'
In my opinion this problem is also connect with my attempt to create a tree.
I always get errors.
> t.tree0=rpart(ID~.,t.train)
Error in
2009 Apr 28
1
I can't install dprep
When I want to install "dprep" and I always get information:
> install.packages("dprep")
Warning in install.packages("dprep") :
argument 'lib' is missing: using 'C:\Users\Documents/R/win-library/2.8'
--- Please select a CRAN mirror for use in this session ---
Warning message:
package ?dprep? is not available
I have tried a lot of mirror...
2009 May 31
1
Error:non-numeric argument in my function
Hello!
I have a function:
zywnoscCalosc<- function( jedzenie, n1, n2, n3, n4, d1, d2, d3, d4 ) {
ndf <- data.frame(nn1=n1,nn2=n2,nn3=n3,nn4=n4)
ddf <- data.frame(dd1=d1,dd2=d2,dd3=d3,dd4=d4)
for (i in 1:length(n1)){
wekt_n = ndf[i,]
wekt_n_ok = wekt_n[!is.na(wekt_n)]
dl_n = length(wekt_n_ok)
wynik = (1*wekt_n_ok)/(1*dl_n)
}
}
and I get an error like this:
Error in 1 * wekt_n_ok :
2009 Jun 16
1
ifelse(is.na), with function inside
Hi,
I have a vector a=c(NA, 3, 4, 4, NA, NA, 3) and I would like to use is.na(a)
function to get a vector like this:
wy=(1,2,2,2,1,1,2) - you know, this vector create 1 or 2 depends on value in
vector "a"
This is my short code but something is wrong and I don't know what...
for (i in 1:7){
a=c( NA, 3, 4, 4, NA, NA, 3)
fun1=function(x){
x=1
print(x)
}
fun2=function(x){
2009 Aug 13
1
write result in matrix using loop
Hello,
I want call my function (use my database) and write every result in matrix
"wynik" but I always get an error: Error in wynik[, i] <- dodawanie(wzorzec,
wzorzec1) :
number of items to replace is not a multiple of replacement length
I'll be very happy if sb help me
dodawanie<- function ( wzorzec, wzorzec1){
wynik1<-wzorzec + wzorzec1
wynik2<-wzorzec *
2013 Feb 11
0
Windows 7 against Samba+LDAP does not work with some passwords
Dear all,
I have installed Samba (3.6.6) on Debian wheezy and configured it to
authenticate against LDAP (encrypted passwords, no lanman). I want
simple shares with user security. I have configured PAM/NSS from the
same LDAP and it works fine.
WinXP works fine, smbclient works fine, but Windows 7 only works for
SOME passwords. Some work, some do not.
Samba is configured with restricted LDAP
2010 Mar 05
1
I can't find "rpart" help (linux)
Hi
I have installed rpart in my Linux (PLD) but I don't know how I may find
help conect this package?
Here is my instalaction:
> install.packages("rpart",dependencies=TRUE)
--- Please select a CRAN mirror for use in this session ---
trying URL 'http://r.meteo.uni.wroc.pl/src/contrib/rpart_3.1-46.tar.gz'
Content type 'application/x-gzip' length 136572 bytes (133
2009 Jun 08
4
seq(...) strange logical value
Do you heve any idea why I get after this instruction everywhere false?
> seq (0, 1, by=0.1) == 0.3
[1] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
But after different step it's ok:
> seq(0, 1, by=0.1) == 0.4
[1] FALSE FALSE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE FALSE
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2010 Mar 05
2
install rJava in linux
Hi
I'm a problem with installing "rJava" in Linux
I have got in my system : java-sun, java-sun-tools, java-sun-jre
but if I wont install rJava I got a problem like this:
> install.packages("rJava", dependencies = TRUE)
--- Please select a CRAN mirror for use in this session ---
trying URL 'http://cran.mirroring.de/src/contrib/rJava_0.8-2.tar.gz'
Content type
2006 Feb 20
2
Matrix / SparseM conflict (PR#8618)
Full_Name: David Pleydell
Version: 2.2.1
OS: Debian Etch
Submission from: (NULL) (193.55.70.206)
There appears to be a conflict between the chol functions from the Matrix and
the SparseM packages. chol() can only be applied to a matrix of class dspMatrix
if SparseM is not in the path.
with gratitude
David
> library(Matrix)
> sm <- as(as(Matrix(diag(5) + 1), "dsyMatrix"),
2009 Jun 02
2
What do you think about my function?
Hello,
I want to know what do you think about my function. I know that it isn't
briliant :/ but what do you think? What I should do that my function will be
better? (now is very slow and not ideal, sometimes I also get a mistake!)
########## My function #############################################
dzieci<-transform(dzieci, zywnosc=0)
zywnoscCalosc<- function( jedzenie, sklep, n1, n2,
2013 Feb 12
3
Changing the order of months within a year
I have data that looks like below and I would like to re-order the values within the "date" column. I would like to have each year organized like so:
Sep-71
Oct-71
Nov-71
Dec-71
Jan-71
Feb-71
Mar-71
Apr-71
May-71
Jun-71
Jul-71
Aug-71
Sep-72
Oct-72
etc...
Is there any way I can order the column in my own fashion and just move Sep-Dec to the beginning of each year? I am planning on doing