Displaying 20 results from an estimated 10000 matches similar to: "check for item in vector"
2011 Feb 02
3
reshape data, adding rows to dataframe
Hello everyone,
I have a data set like this:
> head( fish_transect)
ID_TRANSECT ID_PROJECT DE_ZONE DE_LOCALITY DE_SECTOR MES
1 42 MB Tarragona Creixell Control I 9
2 42 MB Tarragona Creixell Control I 9
3 42 MB Tarragona Creixell Control I 9
4 42 MB Tarragona Creixell Control I 9
5 42
2012 Jan 19
1
bug en funcion 'agrep'
Estimados R-users:
Estoy intentando usar la función 'agrep' para hacer búsquedas en
cadenas de texto. El parámetro max.distance permite controlar la
medida de aproximación de búsqueda de la función de Levenshtein. No
obstante, cuando hago búsquedas específicas no obtengo siempre el
resultado deseado y no se si es un bug o que no entiendo bien el
algoritmo de búsqueda. Por
2012 Apr 11
3
Question on Counting Factors
Hi,
I hope this is not too trivial, but I've had this recurring problem
and I think there is super easy solution, just not sure what it is.
Please see short example below. ?I would like to get the frequency
(counts) of all the variables in a single column (that is easy), but I
would also like to return the value 0 for the absence of variables
defined in another column.
For example:
animals
2010 Nov 01
2
number of items to replace is not a multiple of replacement length
Hey all,
I am writing a function in which I will have a matrix of 4 columns and a
variable amount of rows.
The first to columns will always contain be of the Character type, the third
and fourth columns
can be a variation of data types, usually characters and integers, but
sometimes lists or matrices.
At one point the code makes, for each row, a copy of that row, then it makes
some adjustments
2006 Apr 22
4
Slice and dice plugin
I''ve been playing around with some easier ways of specifying
conditions in active record, and have come up with a little plugin
that some may find useful. Currently active record finder and
calculations methods can take a :conditions option with a string or
array listing some sql conditions, eg:
Animals.find :first, :conditions => "name = ''Tiger''"
My
2010 May 19
3
save in for loop
Dear users,
My problem concerns save() within a for loop.
Here is my code:
for (i in 1:4) {
temp <- data.frame(a=(i+1):(i+10), b=LETTERS[(i+1):(i+10)])
filename <- paste("file", i, sep="")
assign(filename, temp)
save(filename, file=paste(filename, ".rda", sep=""))
}
As you can see, save() doesn't work as I would like: (1) the object
2010 Mar 11
3
Help function "?" in R 2.10.1
Hello everyone,
I have versions 2.7.2 and 2.10.1 installed on a machine that has no
access to internet.
In 2.7.2 I can use ? to get help on functions, which in 2.10.1 that
does not work, all I see is "starting httpd help server...done" and
then nothing.
Have I downloaded 2.10.1 incorrectly (=forgot to tick some box for
local help file repository) or is the internet help now the
2010 May 18
3
"Re: Change class factor to numeric"
sorry I had a mistake sending my question without a subject. I do resend again. Please excuse me.
> Hello
> I have a data array with soil variables (caperf), in which the variable "clay" is factor (as I see entering str(caperf)) . I need to do a regression model, so I need to have arcilla (=clay) as a numeric variable. For that I have entered
>
>
2011 Aug 15
3
how can I read a xlsx file
Hello,
How can I read a xlsx file using xlsx package?
Thanks
Albert
[[alternative HTML version deleted]]
2010 Sep 21
2
labels in (box)plot
Dear users,
I would like all the ticks on a boxplot (x and y) to be labeled
I have checked all the par() arguments but couldn't find what I'm
looking for
Here is an example to show it:
df <- structure(list(SPECSHOR = structure(c(1L, 1L, 1L, 3L, 3L, 3L, 3L,
3L, 4L, 4L), .Label = c("cotau", "dibic", "eqgre", "gicam"), class =
2010 May 20
2
Overlap of leaf labels
Hi,
I have tried looking at the archives but havent found any answer that works
till now (Sorry if i have missed anything)
I am a newbie to R and i am trying to carry out hierarchical clustering
using hclust -> as.dendrogram and then plotting the results as a dendrogram
using the plot function plot(object).
My question is :
In the function "plot", can one decrease the leaf label
2011 May 04
1
Str info. Thanks for helping
It looks from str(SA) that Response IPS1 is a data.frame of class "anova", which probably cannot be coerced to vector.
Maybe you can use unlist() instead of as.vector()
Or something like
SA[["Response IPS1"]]["as.factor(WSD)",] ## to select the first row only, even maybe with unlist()
Without a better REPRODUCIBLE example, I cannot tell more (maybe some others
2011 Apr 20
2
user input
Dear users,
I have looked on different sources and found different functions to
prompt the user to provide input. However, I couldn't find one that does
exactly what I'm looking for.
select.list() and menu() are nice because a graphic window appears to
prompt the user. However, the user can only choose from a predefined
list of choices. readline() and scan() are more free in the
2010 Aug 17
2
dims error
Greetings,
I am a very novice user with R, and in the course of running a linking procedure :
P.old<- function (a, c, b, xi){
#a contains a parameters
#c contains c parameters
#b contains b parameters
#xi is a one column vector containing quadrature points for xi(=theta-gamma)for one item
tmp <- a*(xi-b)
2010 Sep 21
2
plot xyz data in 2D
Hello,
I want to make an 2D plot of .xyz data. So plot on x-axis and y-axis and
use a color scale for the z.
For every x-location along a cross section of the soil at several depths
a resistivity must be displayed. This must result in a picture/graph
which shows the resistivity for that cross section. The depths differ
for each x-location.
How can I do that?
In fact it is an cross
2010 May 20
6
writing function
Dear group,
I am trying to write functions, but as a beginner, everything is not so
obvious.
Let's say I want the results in a list of elemts like this :
tot1, tot2, etc
Here is a function:
toto <-
function(x,y)
{
for(i in x:y){
paste(c("tot",i),collapse="")<-(i*2)
}
}
If I type this :
>toto(1,5)
I get this message error:
Error in paste(c("tot",
2011 Sep 28
3
Plotting Lines Through multiple groups
Hi I have data in the following format
Cort Day Animal
23 0 1
27 3 1
24 0 2
27 1 2
34 2 2
30 3 2
24 4 2
20 0 3
24 1 3
28 2 3
34 4 3
etc.
It is measured across time(day) however no every individual is measured the
same number of times. All I want to do is plot the Raw data and then run a
line connecting the
2010 Dec 08
5
Summing up Non-numeric column
Dear All
If I have the following dataset
V1 V2
x y
y x
z b
a c
b j
d l
c o
How do I use R command to get the total number of different letter in column
"V1"
column "V1" has 7 different letters.
Thank you
--
View this message in context: http://r.789695.n4.nabble.com/Summing-up-Non-numeric-column-tp3077710p3077710.html
Sent from the R help mailing list archive
2010 Dec 13
7
descriptive statistics
Hi. In a data set I have a variable that takes values from 1 to 14. For each
subgroup of values of this variable, I would like to obtain some descriptive
statistics of other variables present in the data set. I've been trying with
a "for" loop but I couldn't get nothing. Could you please suggest me some
lines?
--
View this message in context:
2011 Jun 27
2
Add use of dput() to the instructions at bottom of post?
It's often difficult to figure out what a problem data set looks like when someone pastes a mess of output from R into an e-mail. The dput command, used judiciously?I would hope no one would send a 1 M data set?can make life much easier.
I wonder if it would be useful to add a hint in the instructions at the bottom of the posting page, where the list asks for self-contained reproducible