Displaying 20 results from an estimated 10000 matches similar to: "Transform variable number of rows per subject to column variables?"
2009 Oct 04
2
Row to Column help
Dear R Community,
I am attempting to transpose a dataset from rows to columns but am stuck. I
have tried using reshape() with little luck, possibly due to the categorical
nature of the data. For example:
id<-c(1,2,2,3,3,3)
author<-c("j","k","k","l","l","l")
2009 Sep 14
2
problems with reshape
Hello *
I would like to reshape wide the following dataset:
> rl <- read.dta("intermedi/rapporti_lavoro.dta") [c("id_rl","prog","sil_pi","sil_cf","sil_dat_avv")]
> dim(rl)
[1] 12964 5
> object.size(rl)
1194728 bytes
> head(rl)
id_rl prog sil_pi sil_cf sil_dat_avv
1 638 1 04567XXXXXX
2004 Aug 06
1
reshape (was: Comparing rows in a dataframe)
Hi all:
I solved the previous stated problem in something of a brute force way
(but it works). I seem to now be running into one little hiccup using
reshape. Here is a quick snip of the data in long format:
grade stability year schid
6 Grade 4 3 2001 100005
7 Grade 4 3 2002 100005
8 Grade 4 2 2003 100005
10 Grade 5 2 2001 100005
11 Grade 5
2008 Feb 10
2
reshape
Dear colleagues,
I'd like to reshape a datafame in a long format to a wide format, but
I do not quite get what I want. Here is an example of the data I've
have (dat):
sp <- c("a", "a", "a", "a", "b", "b", "b", "c", "d", "d", "d", "d")
tr <- c("A",
2008 Sep 27
2
reshape "Error in data[, timevar] : incorrect number of dimensions"
I have two waves of a survey given to students at various middle
schools and high schools, with student id numbers for each student. I
am having difficulty reshaping the file from long to wide.
My code is below:
library(foreign)
svy <- read.spss("studsur4.SAV")
svy.wide <- reshape(svy, timevar="WAVE", idvar="id", direction="wide")
2001 Dec 27
3
reshape error in 1.4 (PR#1231)
Full_Name: Kevin Wright
Version: 1.4
OS: Windows 95
Submission from: (NULL) (170.54.59.160)
Note: This was the 1.4 build for Windows that Brian Ripley made available.
The first example in the help for reshape doesn't work for me. When I cut and
paste, this is what happens:
> data(Indometh,package="nls")
> summary(Indometh)
Subject time conc
2006 Jan 22
6
Making a markov transition matrix
Folks,
I am holding a dataset where firms are observed for a fixed (and
small) set of years. The data is in "long" format - one record for one
firm for one point in time. A state variable is observed (a factor).
I wish to make a markov transition matrix about the time-series
evolution of that state variable. The code below does this. But it's
hardcoded to the specific years that I
2002 Oct 25
1
reshape: duplicate rows to multiple cols
I have a dataframe that I'm trying to reshape, and need advice. My data:
> klam.merge[200:225,]
stream lulc x sumlength pct.lgth
200 1223030419685 92 0.25000000 9.89 2.52780586
201 1223030419686 23 0.00274154 4.73 0.05796068
202 1223030419686 41 0.75009917 4.73 15.85833341
203 1223030419686 42 2.65000000 4.73 56.02536998
204
2003 Oct 30
1
Trouble reshaping some data
I would appreciate some advice on the following task. I have
some data that currently looks like this:
t1 <- data.frame(id=c(1,1,2,2),
aspect=c("A","B","A","B"), score=c(10,9,11,12))
I'd like it to look like this:
id A B
1 10 9
2 11 12
reshape() looks like a good candidate for this job but I'm
not really sure about the roles of
2013 Oct 17
1
Reshape
Hello,
I have data frame like the one created below,
##input data
Person <- c(1,1,1,1,1,1,2,2)
Amount <- c(100,10,100,10,100,10,50,150)
Date <- c("12/01/2012", "12/01/2012", "01/01/2013","01/01/2013","02/01/2013","02/01/2013","12/01/2012","12/01/2012")
df <- data.frame(Person,Amount,Date)
I would
2006 Apr 13
1
Subset rows over multiple columns
I have a data frame where I need to subset certain rows before I compute
the mean of another variable. However, the value that I need to subset
by is found in multiple columns. For example, in the data below the
value R0000160 is found in the first and second columns (itd_1 and
itd_45). These data are student responses to multiple choice test items
from a computer adaptive test. So, the variable
2012 Mar 20
2
Reshaping data from long to wide without a "timevar"
Hello All,
I was wondering if it's possible to reshape data from long to wide in R without using a "timevar". I've pasted some sample data below along with some code. The data are sorted by Subject and Drug. I want to transpose the Drug variable into multiple columns in alphabetical order.
My data have a variable called "RowNo" that functions almost like a
2008 Nov 12
3
R- transform data frame into matrix
Hello
I have the problem that I want to transform a dataframe as generated by
diagnosis <- rep(diagnosis[1:3], 3)
marker <- gl(3,3)
values <- rnorm(9)
dataframe <- cbind(diagnosis, marker, values)
dataframe <- dataframe[c(1:5, 7:9), ]
into a matrix where levels(diagnosis) is indicating the rows of the matrix,
levels(marker) the columns and values are the actual content of the
2013 Jan 23
4
how to read a df like that and transform it?
Dear all
I have a data.frame like that :
father mother num_daughter daughter
291 3906 0 NULL
275 4219 0 NULL
273 4236 1 49410
281 4163 1 49408
274 4226 1 49406
295 3869 2 49403
49404
287 4113 0 NULL
295 3871 1 49401
292 3895 4 49396
49397
49398
49399
291 3900 3 49392
How to read it into R and transform it like that:
father mother num_daughter
2010 Jan 22
2
sorted reshaping?
dear R wizards:? I am wrestling with reshape.? I have a long data set
that I want to convert into a wide data set, in which rows are firms
and columns are years.
> summary(rin)
firm fyear sim1
Min. :1004.00 Min. :1964.0 Min. : -1.00000
1st Qu.:1010.00 1st Qu.:1979.0 1st Qu.: -0.14334
Median :1016.00 Median :1986.0 Median : 0.00116
Mean
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 Mar 31
2
'sep' argument in reshape()
I wonder if the 'sep' argument in reshape() is being ignored
unintentionally:
## From example(reshape)
df <- data.frame(id=rep(1:4,rep(2,4)),
visit=I(rep(c("Before","After"),4)),
x=rnorm(4), y=runif(4))
reshape(df, timevar="visit", idvar="id", direction="wide", sep = "_")
id x.Before
2006 Feb 22
1
unused factor levels in reshape
When reshaping a dataframe in which there are unused factor levels in the id variable, I get the following error:
Error in if (!all(really.constant)) warning(gettextf("some constant variables (%s) are really varying", :
missing value where TRUE/FALSE needed
For example,
> df <- data.frame(i = factor(rep(1:5, each = 2)), t = factor(rep(1:2, 5)), x = rep(rbinom(5, 1,
2008 Aug 25
3
Maintaining repeated ID numbers when transposing with reshape
I have a dataset in "long" format that looks something like this:
ID TEST RESULT
1 A 17
1 A 12
1 B 15
1 C 12
2 B 8
2 B 9
Now what I would like to do is transpose it like so:
ID TEST A TEST B TEST C
1 17 15 12
1 12 . .
2
2008 Jan 24
3
Reshaping a dataframe with conditional summary of columns - apply or reshape?
I need to do a somewhat complex rearrangement of an existing dataframe that
involves an "on-the-fly" conditional summary as well. I've tried to make
the example as simple as possible. Code to produce the object being acted
on is at the end of the message. I hope this isn't too much for a single
posting. Any guidance will be much appreciated.
The input example looks like