Displaying 20 results from an estimated 1000 matches similar to: "[ reached getOption("max.print") -- omitted 138 rows]"
2013 Feb 17
6
histogram
HI Elisa,
You could use ?cut()
vec1<-c(33,18,13,47,30,10,6,21,39,25,40,29,14,16,44,1,41,4,15,20,46,32,38,5,31,12,48,27,36,24,34,2,35,11,42,9,8,7,26,22,43,17,19,28,23,3,49,37,50,45)
label1<-unlist(lapply(mapply(c,lapply(seq(0,45,5),function(x) x),lapply(seq(5,50,5),function(x) x),SIMPLIFY=FALSE),function(i) paste(i[1],"<x<=",i[2],sep="")))
2013 Feb 19
1
data format
Hi,
Try this:
el<- read.csv("el.csv",header=TRUE,sep="\t",stringsAsFactors=FALSE)
?elsplit<- split(el,el$st)
?
datetrial<-data.frame(date1=seq.Date(as.Date("1930.1.1",format="%Y.%m.%d"),as.Date("2010.12.31",format="%Y.%m.%d"),by="day"))
elsplit1<- lapply(elsplit,function(x)
2013 Jan 03
5
splitting matrices
Dear useRs,
i want to split a matrix having 1116rows and 12 columns. i want to split that matrix into 36 small matrices each having 12 columns and 31 rows. The big matrix should be splitted row wise. which means that the first small matrix should copy values which are in first 31 rows and 12 columns of the big matrix. similarly 2nd small matrix should contain values from 32nd to 63rd row of the
2012 Nov 27
3
loop command to matrix
Dear UseRs,Extremely sorry for a basic question. I have a matrix of 19 rows and 365 columns. what i want to do is the following...First i want to leave out column number 1 and want to calculate the row wise mean of the remaining columns, which will obviously give me 365 values in one column, and then subtracting these values from the column i left out i.e. col=1 then i want to leave out column 2
2013 Jan 02
4
list of matrices
dear useRs,
i have a list containing 16 matrices. i want to calculate the column mean of each of them.
i tried
>sr <- lapply(s,function(x) colMeans(x, na.rm=TRUE))
but i am getting the following error
>Error in colMeans(x, na.rm = TRUE) : 'x' must be numeric
can it be done in any other way? and why i am getting this error??
thanks in advance..
elisa
[[alternative
2013 Apr 15
3
Indices of lowest values in matrix
Dear R users,Sorry for such a basic question. I really need to know that how can i pick the indices of 5 lowest values from each row of a matrix with dimensions 12*12??Thank you very much in advance
Elisa
[[alternative HTML version deleted]]
2013 Oct 19
3
bold dot size and name in plot
Dear useRs,
I have the following data "z" of two variables "x"(z[,1]) and "y"(z[,2]).
> dput(z)
structure(c(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66,
2013 Feb 15
2
data formatting
Dear Eliza,
Try this:
Lines1<-readLines(textConnection("1911.01.01?????? 7.87
1911.01.02?????? 9.26
1911.01.03?????? 8.06
1911.01.04?????? 8.13
1911.01.05????? 12.90
1911.02.06?????? 5.45
1911.02.07?????? 3.26
1911.03.08?????? 5.70
1911.03.09?????? 9.24
1911.04.10?????? 7.60
1911.05.11????? 14.82
1911.05.12????? 14.10
1911.06.13?????? 7.87
1911.06.14?????? 9.26
2013 Jan 11
3
locating element in distance matrix
Dear useRs,
I have a very basic question. I have a distance matrix and i skipped the upper part of it deliberately. The distance matrix is 1000*1000. Then i used "min" command to extract the lowest value from that matrix. Now i want to know what is the location of that lowest element? More precisely, the row and column number of that lowest element.
Thanks in advance
elisa
2012 Oct 05
3
loop for column substraction of a matrix
Dear useRs,
I have a matrix with 38 columns and 365 rows. what i want to do is the following.....
1. subtracting from each column, first itself and then all the remaining columns. More precisely, from column number 1, i will first subtract itself(column 1) and then the remaining 37 columns. Afterwards i will take column number 2 and do the same. In this way i want to proceed till 38th column.
2013 Feb 17
1
addition in the initial question
Dear Elisa,
Try this:
vec1<-c(33,18,13,47,30,10,6,21,39,25,40,29,14,16,44,1,41,4,15,20,46,32,38,5,31,12,48,27,36,24,34,2,35,11,42,9,8,7,26,22,43,17,19,28,23,3,49,37,50,45)
vec2<-vec1[1:26]
names(vec2)<-LETTERS[1:26]
label1<-unlist(lapply(mapply(c,lapply(seq(0,45,5),function(x) x),lapply(seq(5,50,5),function(x) x),SIMPLIFY=FALSE),function(i)
2013 Feb 13
3
date and matrices
Hi Elisa,
Try this:
date1<-format(seq.Date(as.Date("1991.1.1",format="%Y.%m.%d"),as.Date("1996.12.31",format="%Y.%m.%d"),by="day"),"%Y.%m.%d")
?length(date1)
#[1] 2192
mat1<-matrix(c(.314,.314,.273,.273,.236,.236,.236,.236,.273,.314,.403,.314),ncol=1)
res1<-
2012 Dec 24
2
whats wrong in my codes???
Dear R family,i am trying to plot and save, simultaneously, about 1000. the name of each plot is contained in "names" file. when i run this loop, i get an error.
"Error in plot.new() : Unable to open file 'C:/R/SAVEHERE/myplot_Tak.jpg' for writing". could you please correct the mistake in the loop?
>names<-(names(sp))
>for(a in seq_along(names)){
>mypath
2013 Apr 25
2
connecting matrices
Dear Elisa,
Try this:
el<- matrix(1:100,ncol=20)
?set.seed(25)
?el1<- matrix(sample(1:100,20,replace=TRUE),ncol=1)
In the example you showed, there were no column names.?
?list(el[,sort(el1)[1:3]],sort(el1,index.return=TRUE)$ix[1:3])
#[[1]]
?# ?? [,1] [,2] [,3]
#[1,]?? 31?? 61?? 71
#[2,]?? 32?? 62?? 72
#[3,]?? 33?? 63?? 73
#[4,]?? 34?? 64?? 74
#[5,]?? 35?? 65?? 75
#
#[[2]]
#[1] 9 5 3
A.K.
2013 Jan 02
4
column selection
Dear R users,
sorry for a very basic question. i wanted to ask that if your column are too much in number and you want to select the remaining columns, starting from column number 117. one way is to use usual command
>q[ ,(117:2300)].
is there a way by which i can select the remaining columns starting from column number 117 without using the usual command or without giving the column number
2013 Feb 11
2
FORMAT EDITING
Dear R users,[IF THE FORMAT OF MY EMAIL IS NOT CLEAR, I HAVE ATTACHED A TEXT FILE FOR A CLEAR VIEW]
I would like to use the R output file in Fortran. my file Is exactly in the following format.
ELISA/BOTTO wATER INN
FROM 1900 11 1 TO 1996 12 31
1901.11. 1 447.000
1901.11. 2 445.000
1901.11. 3 445.000
1924.11. 4 445.000
1924.11. 5 449.000
1924.11. 6 442.000
1924.11. 7
2012 Nov 14
3
reversing distance matrix for original values
dear useRs,
i created a distance matrix, of certain voltage values. unfortunately, i lost the original values. i am only left with the distance matrix that i created from those values. i wanted to ask that is there a way in R to reverse distance matrix for the original values?
thanks in advance
eliza
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2012 Dec 24
2
colmeans not working
[text file is also attached in case you find the format of email difficult to understand]
Dear useRs,You must all the planning for the christmas, but i am stucked in my office on the following issue
i had a file containg information about station name, year, month, day, and discharge information. i opened it by using
following command
> dat1<-read.table("EL.csv",header=TRUE,
2012 Oct 15
2
median between matrix column
Dear useRs,
1. how to calculate single median value for two columns of a matrix?
2. i have a matrix of 16 columns and 365 rows, how to calculate median between columns 1 and 16, 2 and 16, 3 and 16, 4 and 16, 5 and 16 till 15th column. is there a loop command to do the said operation?
regards
eliza
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2012 Dec 25
2
for loop not working
dear R family,i have a matrix of 444 columns. what i want to do is the following.
1. starting from column 1 i want to select every 37th column on the way. more precisely i want to select column 1, 38,75,112,149 and so on.
2.starting from column 2, i again want to select every 37th column. which means 2,39,76,113,150 and so on.
similarly starting from 3 till 37th column.
i have tried following loop