Displaying 20 results from an estimated 10000 matches similar to: "newbie: data frame to vector"
2008 Jan 07
4
is there something like or() ?
hi, this may be trivial, but we can't seem to find anything adequate,
(although there is a work around with match() ). We are looking for something
along the lines of
plot(table1[table1$var2==or("a","b","c","d"),"var1"])
would be handy, with the potential or() function leading to what
plot(table1[table1$var2=="a" |
2011 Jan 01
3
Plot symbols: How to plot (and save) a graphic symbols originating from a table
Dear all,
Please, I have a doubt regarding symbol plotting
with data originating from a table.
Please, see below:
I have a tab delimited file called table1.txt with 4 columns:
ypos animal var1 var2
5 cat gina <= lady gina \u2264 lady
7 dog bill >= tony bill \u2265 tony
9 fish dude <= bro dude \u2264 bro
#I then load in the data to R:
table1<-read.table("table1.txt",
2010 Jun 18
3
inverse function of melt
Dear list,
I'm looking for an inverse function of melt(which is in package reshape).Namely, I had a data frame like this
(Table1)
YEAR VAR1 VAR2 VAR3
1995 7 3 45
1996 5 6 32
1997 6 10 15
I transformed my data by using the melt function and my data was reshaped in the following format:
(Table2)
YEAR variable
2011 Jan 02
1
Please, need help with a plot
Please, I wonder if someone knows how to add the
less than or equal to symbol in the plot generated by the code below:
var1<-c('age <= 3','age <= 7','age <= 10','age <= 11','age <= 20','age <=
25','age <= 30','age <= 45','age <= 50','age < 55','age >= 55')
2011 Jan 23
3
FUNC_ODBC and ARRAY
Gentlemen,
I have googled, searched the mailing list archives, and even spoke on
the IRC channel, but have not found an answer to the following
problem. I am attempting to retrieve multiple columns in an ODBC query
using ARRAY per the solutions offered by many individuals. My dialplan
code is as follows:
exten => _.,n,Set(ARRAY(var1,var2,var3)=${ODBC_LOOKUP(${KEYVAL})})
exten =>
2007 Apr 02
1
RODBC, sqlQuery with NA:s
Hi R-users,
I'm trying to retrieve data from MS SQL database with RODBC's
sqlQuery-function:
temp <- sqlQuery(channel,"select *, (select text from table1 where
koodi='paa' and koodi2=paa) as tempor from table2")
str(temp)
…
$ var0 : num NA NA 1.6 NA NA 1.4 NA 1 NA NA ...
$ var1 : Factor w/ 45 levels "
2008 Jul 16
2
Group level frequencies
Dear List,
I have Multi-level Data
i= Indivitual Level
g= Group Level
var1= First Variable of interest
var2= Second Variable of interest
and I want to count the frequency of "var1" and "var2" on the group
level.
I found a way, but there must be a much simpler way.
data.ml <-
data.frame(i=c(1:8),g=as.factor(c(1,1,1,2,2,3,3,3)),var1=c(3,3,3,4,4,4,4
,4),
2004 Aug 17
5
Bug in colnames of data.frames?
Hi,
I am using R 1.9.1 on on i686 PC with SuSE Linux 9.0.
I have a data.frame, e.g.:
> myData <- data.frame( var1 = c( 1:4 ), var2 = c (5:8 ) )
If I add a new column by
> myData$var3 <- myData[ , "var1" ] + myData[ , "var2" ]
everything is fine, but if I omit the commas:
> myData$var4 <- myData[ "var1" ] + myData[ "var2" ]
the name
2009 Sep 22
3
converting a character vector to a function's input
Hi all, I have been trying to solve this problem and have had no luck so far.
I have numeric vectors VAR1, VAR2, and VAR3 which I am trying to cbind. I also have a character vector "VAR1,VAR2,VAR3". How do I manipulate this character vector such that I can input a transformed version of the character vector into cbind and have it recognize that I'm trying to refer to my numeric
2010 Dec 20
2
Turning a Variable into String
I would like to know how to turn a variable into a string. I have tried
as.symbol and as.name but it doesnt work for what I'd like to do
Essentially, I'd like to feed the function below with two variables. This
works fine in the bit working out number of elements in each variable.
In the print(sprintf("OK with %s and %s\n", var1, var2)) line I would like
var1 and var2 to be
2014 Aug 21
2
pregunta
Buenas noches Javier y José,
Estoy en contra de usar attach(), asi que propongo la siguiente alternativa
con with():
# paquete
require(epicalc)
# los argumentos en ... pasan de epicalc:::cc
# ver ?cc para mas informacion
foo <- function(var1, var2, var3, ...){
or1 <- cc(var1, var2, ...)
or2 <- cc(var1, var3, ...)
list(or1 = or1, or2 = or2)
}
# datos
x <-
2002 Jul 09
3
Assignment converts variable to factor
Hello,
I would like to know if this behaviour in R is as expected.
I have a data frame 'dat' with column var1 being character (and not
factor). Then I create a new column 'var2' by:
> dat[,"var2"] <- dat$var1;
Column var2 is now a factor.
But if I do:
> dat$var2 <- dat$var1;
Then column var2 is character (and not factor).
I don't want to have
2006 Jan 13
2
find mean of a list of timeseries
Can someone please give me a clue how to 're'write this so I dont need
to use loops.
a<-ts(matrix(c(1,1,1,10,10,10,20,20,20),nrow=3),names=c('var1','var2','var3'))
b<-ts(matrix(c(2,2,2,11,11,11,21,21,21),nrow=3),names=c('var1','var2','var3'))
2008 May 02
2
Coercing by/tapply to data.frame for more than two indices?
Dear Colleagues,
Apologies for a long email to ask what I feel may be a very simple
question; I figure it's better to overspecify my situation.
I was asked a question, recently, by a colleague in my department
about pre-aggregating variables, i.e., computing the mean of defined subsets
of a data frame. Naturally, I thought of the 'by' and 'tapply' functions, as
2012 Jul 01
2
list to dataframe conversion-testing for identical
HI R help,
I was trying to get identical data frame from a list using two methods.
#Suppose my list is:
listdat1<-list(rnorm(10,20),rep(LETTERS[1:2],5),rep(1:5,2))
#Creating dataframe using cbind
dat1<-data.frame(do.call("cbind",listdat1))
colnames(dat1)<-c("Var1","Var2","Var3")
#Second dataframe conversion
2014 Apr 11
6
crear variable en base a nombre de columnas que tienen un 1
Buenos días.
Hoy ando un poco (o bastante) espeso y no doy con la tecla de una cosa
que seguro que es muy simple..
Pongo un ejemplo.
var1 <- c(rep(0,3),rep(1,2))
var2 <- c(rep(1,2),0,0,1)
var3 <- c(rep(1,2),rep(0,3))
var4 <- c(rep(1,2),rep(0,3))
datos <- data.frame(fila=1:5,var1, var2, var3, var4)
datos
datos
fila var1 var2 var3 var4
1 1 0 1 1 1
2 2 0
2014 Aug 21
2
pregunta
Estimados
Estoy entrenando hacer funciones que respondan a comandos,
en esta caso en la salida gráfica se observa que dice : Exposure=var3 y
outcome=var 1
quisiéramos que se reflejan los nombres de la base de datos : var1=estado,
var2=cake, var3=chocolate
Espero haberme explicado adecuadamente
Adjunto tabla con datos
####################################
#Comando que llama
2006 Mar 02
1
CCF and Lag questions
I am new to R and new to time series modeling.
I have a set of variables (var1, var2, var3, var4, var5) for which I have
historical yearly data.
I am trying to use this data to produce a prediction of var1, 3 years into
the future.
I have a few basic questions:
1) I am able to read in my data, and convert it to a time series format
using 'ts.'
data_ts <- ts(data, start = 1988, end =
2009 May 20
1
Comparing spatial distributions - permutation test implementation
Hello everyone,
I am looking at the joint spatial distribution of 2 kinds of organisms
(estimated on a grid of points) and want to test for significant
association or dissociation.
My first question is: do you know a nice technique to do that,
considering that I have a limited number of points (36) but that they
are repeated (4 times)? I did GLMs to test for correlations between
the
2008 Aug 07
2
List of "occurrence" matrices
R users,
I don't know if I can make myself clear but I'll give it a try. I have
a data.frame like this
x <- "var1,var2,var3,var4
a,b,b,a
b,b,c,b
c,a,a,a
a,b,c,c
b,a,c,a
c,c,b,b
a,c,a,b
b,c,a,c
c,a,b,c"
DF <- read.table(textConnection(x), header=T, sep=",")
DF
and I would like to sum all the combinations/occurences by a factor
(letter in this case) between