Displaying 20 results from an estimated 30000 matches similar to: "matrix transpose"
2009 Jul 10
4
how to transpose a dataframe
I want to transpose a dataframe like
level 2006 2007 2008
A ....
B .....
C ........
into
level year
A 2006
A 2007
A 2008
B 2006
B 2007
......
There is a procedure in SAS can do this, is there any function in R can do
this?
--
View this
2000 Nov 07
1
matrix transpose and object name
hello, everybody,
i have several unresolved issues:
1. how to do a matrix transpose? i cant find how to do it in the
documentation.
2..suppose i have an object named as lm1 from linear regression, how could
i refer to it by paste("lm",1,sep="") ?
3. to save a matrix 100 x 30, how to have a text file with 100 lines and 30
cols, instead of stacking them?
thanks.
best regards
2009 Aug 18
4
Transpose a dataset
Hi Everyone,
I have a dataset like this
mean sd 0% 25% 50%
75% 100% n
BODY TEMPERATURE 36.41099 0.4015699 35.1 36.22222 36.5
36.66667 37.1 89
DIASTOLIC BLOOD PRESSURE 73.60079 9.4656186 50.0 67.00000 73.0
80.00000 95.0 253
HEIGHT 171.94000 9.2011670 153.5 166.50000 173.0
176.25000 190.0
2011 Apr 20
1
Matrix package transpose
Hi,
Since I installed R 2.13 I cannot use the transpose method "t" on sparse
matrices inside my package. Outside the package works. Is there
something new that I have to import methods? Can I then import
everything from the Matrix package? The problem is that R tries to use
t.default which of course doesn't work.
Happy easter, Tobias
--
Tobias Abenius
Ph.D. Student, M.Sc. in
2010 Jul 30
4
transpose of complex matrices in R
Hello everybody
When one is working with complex matrices, "transpose" very nearly
always means
*Hermitian* transpose, that is, A[i,j] <- Conj(A[j,i]).
One often writes A^* for the Hermitian transpose.
I have only once seen a "real-life" case
where transposition does not occur simultaneously with complex conjugation.
And I'm not 100% sure that that wasn't a
2010 Dec 20
2
package "arules" - 'transpose' of the transactions
Suppose this is my list of transactions:
set.seed(200)
tran=random.transactions(100,3)
inspect(tran)
items transactionID
1 {item80} trans1
2 {item8,
item20} trans2
3 {item28} trans3
I want to get the 'transpose' of the data, i.e.
transactionID items
1 {trans2} item8
2 {trans2} item20
3 {trans3} item28
4 {trans1} item80
I
2003 Sep 29
4
Data frame transpose
Hi All,
I want to ask if there is a transpose function for data frame like the
procedure of transpose in SAS? Because I want to partially transpose a
data frame which contains 5 columns (siteid, date, time, obs, mod), what
I want to do is to put time as the column variables along with siteid,
and date, and put obs and mod in the row names. specifically to
transpose a data frame:
siteid date
2009 Feb 24
2
Transpose array
Hi Listers,
Is there a way that I can transpose an array...
Suppose I have the following array...
x<-array(c(1,2,3,4),dim=c(1,2,2))
, , 1
[,1] [,2]
[1,] 1 2
, , 2
[,1] [,2]
[1,] 3 4
And I would like to get the following result...
, , 1
[,1]
[1,] 1
[,2] 2
, , 2
[,1] [,2]
[1,] 3
[,2] 4
Thanks in advance,
Marcio
--
View this message in context:
2009 Sep 27
3
Teach me how to transpose in R
Hi guys,
I need your help!!
My goal is to make a csv file from ncdf file.
This is the code i've used :
> hyo=open.ncdf("C:/CRUTEM3.nc")
> hyo
[1] "file C:/CRUTEM3.nc has 4 dimensions:"
[1] "longitude Size: 72"
[1] "latitude Size: 36"
[1] "unspecified Size: 1"
[1] "t Size: 1916"
[1] "------------------------"
2009 Dec 09
1
reshape() makes R run out of memory (PR#14121)
Full_Name: Alexander L. Belikoff
Version: 2.8.1
OS: Ubuntu 9.04 (x86_64)
Submission from: (NULL) (67.244.71.200)
I'm trying to reshape the following data frame:
ID DATE1 DATE2 VALUE_TYPE VALUE
'abcd1233' 2009-11-12 2009-12-23 'TYPE1' 123.45
...
VALUE_TYPE is a string and is a factor with only 2 values
2009 Sep 28
6
SAS user now converting to R - Help with Transpose
I am just starting to code in R and need some help as I am used to doing this
in SAS.
I have a dataset that looks like this:
Chemical Well1 Well2 Well3 Well4
BOD 13.2 14.2 15.5 14.2
O2 7.8 2.6 3.5 2.4
TURB 10.2 14.6 18.5 17.3
and so on with more chemicals....
I would like to transpose my data so that it looks like this:
Chemical WellID Value
BOD Well1 13.2
BOD Well2 14.2
BOD Well3 15.5
BOD
2017 Jun 20
2
by can not find transpose function
I am trying to transpose a dataframe by its first column using the by statement using the t function. When I use the by function, I get a message,
Error in FUN(X[[i]], ...) : could not find function "FUN"
I don't think I have a syntax error in my by statement because the by statment works using the print function.
Data and an executable example follows:
phonydata2 <-
2005 Dec 20
3
transpose a matrix?
I have a data set in the following format:
x<-data.frame(id=c(‘a’,’b’,’c’),’2005-01-15’=c(100,225,425), ’2005-02-23’=c(1100,2325,4525))
> x
id X2005.01.15 X2005.02.23
1 a 100 1100
2 b 225 2325
3 c 425 4525
I want:
id
a
b
c
X2005.01.15
100
225
425
X2005.02.23
1100
2006 May 23
2
transpose dataset to PC-ORD?
Hello:
I need to take a species-sample matrix and transpose it to the format
used by PC-ORD for analysis. Unfortunately, the number of species is
very large (>5000), and so this operation cannot be performed simply
in an application like Excel, which has a 255 column limit. So, I
wrote relatively simple code in R that I hoped would do this
(appended below). But there are glitches.
The
2017 Jun 20
0
by can not find transpose function
> On Jun 20, 2017, at 7:19 AM, Sorkin, John <jsorkin at som.umaryland.edu> wrote:
>
> I am trying to transpose a dataframe by its first column using the by statement using the t function. When I use the by function, I get a message,
>
> Error in FUN(X[[i]], ...) : could not find function "FUN"
>
> I don't think I have a syntax error in my by statement
2002 Jul 15
2
Transpose and NA's
I noticed some odd behavior when I transpose a data frame containing
NA's. It seems to cast all the elements as "character" including the
NA's. Bug?
> t(data.frame(x=1:10,y=1:10,z=rep(NA,10)))
1 2 3 4 5 6 7 8 9 10
x " 1" " 2" " 3" " 4" " 5" " 6"
2013 Mar 06
1
Transpose a big data file and write to a new file
Dear all:
I have a big data file of 60000 columns and 60000 rows like that:
AA AC AA AA .......AT
CC CC CT CT.......TC
..........................
.........................
I want to transpose it and the output is a new like that
AA CC ............
AC CC............
AA CT.............
AA CT.........
....................
....................
AT TC.............
The keypoint is I can't read
2010 Jan 29
2
question about transpose
Hi all,
if I transpose a matrix with t(data), the newly created colums do not appear to have the first row as header. How can I do to have all the newly created columns have their first row as a header?
Thanks
Gabriele Zoppoli, MD
Ph.D. Fellow, Experimental and Clinical Oncology and Hematology, University of Genova, Genova, Italy
Guest Researcher, LMP, NCI, NIH, Bethesda MD
Work: 301-451-8575
2009 Dec 30
2
select elements and transpose
Hi all,
Given the following,
> xx
[[1]]
V1 V2 V3
[1,] 1 2 3
[2,] 4 5 6
[3,] 7 8 9
[[2]]
V1 V2 V3
[1,]10 11 12
[2,]13 14 15
[3,]16 17 18
[[3]]
V1 V2 V3
[1,]19 20 21
[2,]22 23 24
[3,]25 26 27
how do i extract elements in each file so that after transpose, it looks
something like the following;
1
10
19
2
11
20
3
12
21
and so on..
Thanks..
--
Muhammad
2006 Jul 27
2
Vector extracted from a matrix. How can I specify dimensions in as.matrix?
Transpose vector extracted from a matrix
Hello,
I am doing a recursive analysis that uses every line (vector) of a matrix in
a loop. In the model, I need to transpose those vectors that are extracted
from a matrix.
Using simple vectors (no matrix involved) the transpose function works fine:
simplevector <-matrix(1:3,3,1)
tsimplevector <-t(simplevector) #transposed
dim(simplevector)