It's nice that R keeps the base function list short enough that you can
look at it, but it would be nice to have a few more convenience functions
included, especially ones that mirror common functions, like trim
sum(sapply(search(), function(x) length(ls(x
[1] 2376
Over two thousand
That assumes:
* Everyone reads the mailing list before making the first posting
* Everyone reads every part of every email.
I'd argue that both assumptions are false. People are particular well
trained to skip over boilerplate text at the bottom of emails.
I'd suggest an alternative approach
On Thu, Jul 26, 2012 at 4:18 AM, Richard Ohrvall
richard.ohrv...@gmail.com wrote:
Dear all,
I am new to R in general and ways to retrieve XML or JSON data in
particular. I have tried to get information through the XML package
and various websites without being able to do exactly what I want.
One of the things I would love to add to my package would be the
ability to compare more than two expressions in one call. But
unfortunately, I haven't found out so far whether (and if so, how) it
is possible to extract the elements of a ... object without
evaluating them.
Have a look at
On Mon, Jul 23, 2012 at 2:12 PM, S Ellison s.elli...@lgcgroup.com wrote:
One of the things I would love to add to my package would be the
ability to compare more than two expressions in one call. But
unfortunately, I haven't found out so far whether (and if so, how) it
is possible to extract
On Thu, Jul 19, 2012 at 8:02 AM, Jan van der Laan rh...@eoos.dds.nl wrote:
Johan,
Your 'list' and 'array doubling' code can be written much more efficient.
The following function is faster than your g and easier to read:
g2 - function(dotot) {
v - list()
for (i in seq_len(dotot)) {
On Thu, Jul 19, 2012 at 9:21 AM, William Dunlap wdun...@tibco.com wrote:
Preallocation of lists does speed things up. The following shows
time quadratic in size when there is no preallocation and linear
growth when there is, for size in the c. 10^4 to 10^6 region:
Interesting, thanks! I wish
# devtools
The aim of `devtools` is to make your life as a package developer
easier by providing R functions that simplify many common tasks.
Devtools is opinionated about how to do package development, and
requires that you use `roxygen2` for documentation and `testthat` for
testing. Future
Hi all,
I'm going to be teaching an R development master classes in NYC June
21-12 and in the Bay Area June 28-29. The basic idea of the class is
to help you write better code, focused on the mantra of do not repeat
yourself. In day one you will learn powerful new tools of
abstraction, allowing
On Wed, Apr 25, 2012 at 6:27 AM, Ramon Ovelar ramon.ove...@gmail.com wrote:
I don't think I have touched at anything at all. I'm very newbie to R and to
be honest I don't know what Ramdom.seed is. I will try to find out.
I have seen other messages about restoring random.seed, but in order to
I have a similar error, running R in Snow Leopard too
library(ggplot2)
Error : .onAttach failed in attachNamespace() for 'ggplot2', details:
call: stats::runif(1)
error: .Random.seed no es un vector de números enteros pero es de tipo
'list'
Error: package/namespace load failed for
Now I have to put my money where my mouth is. I've offered to visit a
high school and introduce R to some fairly advanced students
participating in a longitudinal 3-year science research class.
I anticipate keeping things very simple:
--objects and the fact that there is stuff inside them.
If the students are in a science research class, does that mean they
have data from their own research that they would want to understand
better? I think that would be much more motivating than anything else.
It might depends on the class - most high school science experiments
aren't that
And it's now fixed in the dev version.
Hadley
On Tue, Mar 13, 2012 at 11:37 AM, Helios de Rosario
helios.derosa...@ibv.upv.es wrote:
Michael,
Thanks for the pointer to the discussion in the ggplot list. It seems
that the reason of this behaviour of facet_grid() is already known and
being
What I would have liked is something like a cloud of lines, similar to what
I get when I convert the data into a matrix (why do I not just use a matrix?
I come from MATLAB and this seems natural, however, my data is large and a
data frame seems to be an advantageous way to handle that).
It's
On Sun, Apr 1, 2012 at 9:16 AM, Till Bayer till.ba...@kaust.edu.sa wrote:
Hi all!
I want to generate a heat map from an all-vs-all comparison. I have the
data, already scaled to 0-1. However, I have the values only for the
comparisons in one way, and not for the comparisons between the same
Make OPCON an environment and pass it into the functions that may read it or
alter it. There
is no real need to pass it out, since environments are changed in-place
(unlike lists). E.g.,
x - list2env(list(one=1, two=ii, three=3))
x
environment: 0x03110890
objects(x)
Why not pass around a reference class?
Hadley
On Thu, Apr 5, 2012 at 3:20 PM, John C Nash nas...@uottawa.ca wrote:
In trying to streamline various optimization functions, I would like to have
a scratch pad of working data that is shared across a number of functions.
These can be called from
I believe it was 2008.
Hadley
On Mon, Mar 26, 2012 at 11:46 AM, Marina Doucerain
marinadoucer...@gmail.com wrote:
Hello,
I'm wondering what was the year (or year range) of collection for the data
included in the 'diamonds' dataset in ggplot2.
This information would be very helpful in
One difficulty in getting the help pages to look beautiful is that the
original input is so inconsistent, and package authors (naturally) get upset
when CRAN starts rejecting packages because of errors that used to be
ignored. The current output is definitely a compromise aimed at making most
# devtools
The aim of `devtools` is to make your life as a package developer
easier by providing R functions that simplify many common tasks.
Devtools is opinionated about how to do package development, and
requires that you use `roxygen2` for documentation and `testthat` for
testing. Future
On Fri, Feb 17, 2012 at 7:51 PM, Benilton Carvalho
beniltoncarva...@gmail.com wrote:
Hi everyone,
For reasons beyond the scope of this message, I'd like to append a
NULL element to the end of a list.
tmp0 - list(a=1, b=NULL, c=3)
append(tmp0, c(d=4)) ## works as expected
append(tmp0,
Hi Aidan,
str is your friend:
str(g)
'data.frame': 9 obs. of 3 variables:
$ Date: chr 2011-12-23 2011-12-30 2012-01-06 2011-12-23 ...
$ variable: Factor w/ 3 levels Price,Yield,..: 1 1 1 2 2 2 3 3 3
$ value : num 86.78 86.04 86.44 9.74 9.54 ...
You haven't turned the Date
On Thu, Jan 12, 2012 at 5:27 PM, Darran King darran.k...@csiro.au wrote:
Hi all
New to R and GGplot2 but loving the potential. I am trying to plot four
separate point plots by looping over the data and plotting a different
subset each time.
When I plot the data as a point plot, the size of
Hi Mario,
If you're still having problems, I'd suggest sending a small
reproducible example
(https://github.com/hadley/devtools/wiki/Reproducibility) to the
ggplot2 mailing list.
Hadley
On Tue, Jan 17, 2012 at 12:32 PM, Mario Giesel rr.gie...@yahoo.de wrote:
Hello, R-List,
I'm getting error
Hi Simon,
You might want to try sending a small reproducible example
(https://github.com/hadley/devtools/wiki/Reproducibility) to the
ggplot2 mailing list.
Hadley
On Tue, Jan 31, 2012 at 10:53 PM, sjlabrie sjlab...@mit.edu wrote:
Hi,
I am looking for a way to plot bar on a map instead of the
Hi Raimund,
To increase your chances of getting help, I'd recommend using the
ggplot2 mailing list, and reducing your example down to the essence of
the problem. For example, the theme components don't affect the
problem, but make the code longer, and so harder to understand.
Hadley
On Mon,
To be strictly correct, shouldn't that be:
formula- eval(substitute( value*v*LEFT ~ RIGHT, list(LEFT=LEFT,
RIGHT=RIGHT)))
?
I think it probably doesn't matter. The difference is that mine gives a
pure language object, whereas yours gives a formula object. The formula
object has a
Same warning here. Which made me think that R CMD build will probably
tar up the git repository along with the package, which is not
something I would like to do, and which CRAN people most likely won't
tolerate in a package on CRAN.
It doesn't. And you can always use .Rbuildignore to ignore
I'm exploring using a version control system to keep better track
of changes to the packages I maintain. I'm leaning towards git
(although mercurial also looks good) but am not sure what is the
best way to set up the repository. It seems I can't set the
repository directly within the R
I'm curious if you have a guess whether the issue I was having is a
result of the problems with the 0.9.0 version or if they're due to
fundamental changes in ggplot2?
It looks like a bug - I'll add it to the to do list.
Hadley
--
Assistant Professor / Dobelman Family Junior Chair
Department
2. It's more flexible to construct the language object as a language object,
rather than pasting something together and parsing it. For one thing, that
allows non-syntactic variable names; I think it's also easier to read. So
your code
txt- paste(tabular(value*v*, LEFT , ~ ,RIGHT ,, data =
Hi James,
There were a few problems with the 0.9.0 version, which is why it was
pulled from CRAN. I'd recommend re-installing 0.8.9:
install.packages(ggplot2, type = source)
Hadley
On Wed, Feb 1, 2012 at 2:10 PM, J Toll jct...@gmail.com wrote:
Hi,
I have a question related to the newest
On Fri, Jan 27, 2012 at 1:26 PM, Sam Albers tonightstheni...@gmail.com wrote:
Hello,
I am looking for a way to subset a data frame by choosing the top ten
maximum values from that dataframe. As well this occurs within some
factor levels.
## I've used plyr here but I'm not married to this
On Thu, Jan 19, 2012 at 1:45 PM, Ajay Askoolum aa2e...@yahoo.co.uk wrote:
The R Language Definition at
http://cran.r-project.org/doc/manuals/R-lang.html states in the following
section
4.3.2 Argument matching
This subsection applies to closures but not to primitive functions.
What are
On Mon, Jan 16, 2012 at 6:05 PM, Mary Kindall mary.kind...@gmail.com wrote:
Thanks for reply
I wanted to have legend name with spaces. Right now I am using the
following code but it produce two legends. I have to use Gimp to cut the
redundant legend.
Your basic problem is that you're using
Note that although ddply does a lot for you, it doesn't reproduce all of
your calculations on all of the data columns like summaryBy does... you have
to explicitly create every calculated column in your function.
Well, ddply doesn't, but colwise will.
Hadley
--
Assistant Professor /
Please see https://github.com/hadley/plyr/issues/60
Hadley
On Thu, Jan 12, 2012 at 11:54 AM, abhagwat bhagwatadi...@gmail.com wrote:
The code below shows that
(1) the way to activate the parallel backend indeed is to use 'registerDoMC'
(2) the function d_ply does NOT accept the argument
On Mon, Jan 16, 2012 at 10:15 AM, Duncan Murdoch
murdoch.dun...@gmail.com wrote:
On 12-01-16 10:34 AM, Marion Wenty wrote:
Dear People,
I have got the following example for a vector and the index of the TRUE
element:
Myvector- c(FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,FALSE,TRUE)
On Mon, Jan 9, 2012 at 8:00 PM, jim holtman jholt...@gmail.com wrote:
try this:
x - structure(list(speed = c(3,9,14,8,7,6), result = c(0.697, 0.011, 0.015,
0.012, 0.018, 0.019), house = c(1,
+ 1, 1, 1, 1, 1), date = c(719, 1027, 1027, 1027, 1030, 1030),
+ id = c(1000, 1,
+ 10001,
FYI, if you're looking for the technical term for this type of text it's bidi:
http://en.wikipedia.org/wiki/Bi-directional_text
Hadley
On Tue, Jan 3, 2012 at 4:32 PM, Tal Galili tal.gal...@gmail.com wrote:
And I forgot to include the link to the image, here it is:
But if not, it seems to me that it should be added as an array method
to ?rev with an argument specifying which indices to rev() over.
Yes, agreed. Sometimes arrays seem like something bolted onto R that
is missing a lot of functionality.
Hadley
--
Assistant Professor / Dobelman Family
Your request is reminding me of the analysis of aray functions in Philip S
Abrams dissertation
http://www.slac.stanford.edu/cgi-wrap/getdoc/slac-r-114.pdf
AN APL MACHINE
The section that starts on page 17 with this paragraph is the one that
immediately applies
C. The Standard Form for
My understanding is that one only clears the variables... not
functions/packages, etc...
Not exactly true. rm should remove any function you defined in your current
session. You need to look at
?unloadNamespace
?detach
... in order to remove loaded packages.
And read the caveats there.
Hi all,
Are there base functions that do the equivalent of this?
fliptb - function(x) x[nrow(x):1, ]
fliplr - function(x) x[, nrow(x):1]
Obviously not hard to implement (although it needs some more checks),
just wondering if it had already been implemented.
Hadley
--
Assistant Professor /
# plyr
plyr is a set of tools for a common set of problems: you need to
__split__ up a big data structure into homogeneous pieces, __apply__ a
function to each piece and then __combine__ all the results back
together. For example, you might want to:
* fit the same model each patient subsets of
# testthat
Testing your code is normally painful and boring. `testthat` tries to
make testing as fun as possible, so that you get a visceral
satisfaction from writing tests. Testing should be fun, not a drag, so
you do it all the time. To make that happen, `testthat`:
* Provides functions that
But be careful because class is a character vector (not necessarily a
character vector of length 1)
On Fri, Dec 30, 2011 at 10:21 AM, Justin Haynes jto...@gmail.com wrote:
there is also colwise in the plyr package.
library(plyr)
colwise(class)(data6)
v13 v14 v15 f4 v16
?plyr::summarise seems pretty helpful to me. If you can do better,
please submit a patch - they are very much appreciated.
My failure to find it stemmed from it not being mentioned in any way in
package reshape2's help files, but maybe I was mistaken that it was meant to
be used in that
See https://github.com/hadley/ggplot2/issues/31 - I totally agree that
it's annoying.
Hadley
PS. You are more likely to get helpful responses about ggplot2 on the
ggplot mailing list.
On Fri, Dec 23, 2011 at 7:08 AM, Casper Ti. Vector
caspervec...@gmail.com wrote:
For example, prepare like
You might find the ggplot mailing list a friendlier place to ask
questions about ggplot2.
Hadley
On Wed, Dec 21, 2011 at 2:16 PM, rachaelohde cox.rach...@gmail.com wrote:
Hello,
I am trying to plot means and standard errors conditioned by a factor, using
qplot. I am successful at getting the
You are more likely to get a helpful response if you provide a
reproducible example - without that I can only guess that you need to
use approx so you get y values at same x values.
Hadley
On Wed, Dec 21, 2011 at 8:13 AM, UncleFish bpn...@ucsd.edu wrote:
I wish to make a stacked area chart of a
On Fri, Dec 23, 2011 at 1:58 PM, Kaiyin Zhong kindlych...@gmail.com wrote:
library(reshape2)
x = melt(airquality, id=c('month', 'day'))
With reshape I can cast with multiple functions:
library(reshape)
cast(x, month+variable~., c(mean,sd))
month variable mean sd
1 5
Have you looked at the .summarise argument to dcast? That seems to deliver
the same sort of results one gets with base::aggregate.
Actually I see after looking at examples on the plyr-reshape-googlegroups
group that it is not '.summarise' but rather 'summarise'. Unfortunately
there are no
You should be able to suppress them with
suppressPackageStartupMessages() but not all packages produce startup
messages in the approved manner.
Hadley
On Wed, Dec 21, 2011 at 5:36 PM, Saiwing Yeung saiw...@berkeley.edu wrote:
For example, if I call library(spam), I would get messages like this
# stringr
Strings are not glamorous, high-profile components of R, but they do
play a big role in many data cleaning and preparations tasks. R
provides a solid set of string operations, but because they have grown
organically over time, they can be inconsistent and a little hard to
learn.
On Wed, Dec 7, 2011 at 4:02 AM, Eric Fail eric.f...@gmx.us wrote:
Dear list,
I have been struggling with this for some time now, and for the last hour I
have been struggling to make a working example for the list. I hope someone
out there have some experience with plotting longitudinal
On Sat, Dec 3, 2011 at 11:16 AM, Jim Lemon j...@bitwrit.com.au wrote:
On 12/03/2011 06:04 AM, Hadley Wickham wrote:
Hi all,
I was wondering if any one had scripts that they could share for
capturing the current version of R packages used for a project. I'm
interested in creating a project
On Thu, Dec 1, 2011 at 10:32 AM, Douglas Esneault
douglas.esnea...@mecglobal.com wrote:
I am new to R but am experienced SAS user and I was hoping to get some help
on counting the occurrences of a character within a string at a row level.
My dataframe, x, is structured as below:
Col1
Hi all,
I was wondering if any one had scripts that they could share for
capturing the current version of R packages used for a project. I'm
interested in creating a project local library so that you're safe if
someone (e.g. the ggplot2 author) updates a package you're relying on
and breaks your
You need: system.time(print(qplot(x,y,pch=I('.'
Hadley
On Fri, Nov 18, 2011 at 1:30 PM, Justin Haynes jto...@gmail.com wrote:
Very cool. Sadly, as far as I can tell, it doesn't work with ggplot though
:(
x-runif(1e6)
y-runif(1e6)
system.time(plot(x,y,pch='.'))
user system elapsed
# Roxygen2
The premise of `roxygen2` is simple: describe your functions in
comments next to where their definitions and `roxygen2` will process
your source code and comments to produce R compatible Rd files.
Here's a simple example from the `stringr` package:
#' The length of a string (in
Hi all,
I hope you don't mind the slightly off topic email, but I'm going to
be teaching an R development master class in New York City on Dec
12-13. The basic idea of the class is to help you write better code,
focused on the mantra of do not repeat yourself. In day one you will
learn powerful
No seriously, as much as I'm for free enterprise, it feels awkward to
see you promote an (expensive!) course in a list where people offer not
only their knowledge, but also the tools you use, for free.
You might have a point if I taught this course instead of offering
knowledge and code for
You are more likely to receive helpful responses if you:
a) Provide a reproducible example (e.g.
https://github.com/hadley/devtools/wiki/Reproducibility)
b) Post to the ggplot2 mailing list.
Hadley
On Fri, Oct 28, 2011 at 5:03 PM, RanRL rnr...@gmail.com wrote:
Hi, I have two questions
In the example I give above, the impact might seem small, but the
implications are *huge*. This means that I am, in effect, not allowed to
use *any* of the vectoring functions in 'R', which avoid performing loops
thereby speeding up process time extraordinarily. Many can sympathize that
I agree that it is non-trivial to solve the cases you I have posed.
However, I would wholeheartedly support having an error spit back for any
function that does not explicitly support a class. In this case, if I
attempt to do sapply(x, class), and 'x' is of class difftime, then I
So I was using the rshape package rather than rshape2. I don't know the
relationship between those two packages and/or how they differ. I am sure
that there are others that can help you out here.
I, too, don't know how the two packages 'reshape, The Orignal' and
'reshape2, Rebooted'
On Mon, Oct 24, 2011 at 5:39 AM, Duncan Murdoch
murdoch.dun...@gmail.com wrote:
Suppose I have data like this:
A - sample(letters[1:3], 1000, replace=TRUE)
B - sample(LETTERS[1:2], 1000, replace=TRUE)
x - rnorm(1000)
I can get a table of means via
tapply(x, list(A, B), mean)
and I can
On Mon, Oct 10, 2011 at 4:14 PM, Joshua Wiley jwiley.ps...@gmail.com wrote:
I could be waay off base here, but my concern about presplitting the data is
that you will have your data, and a second copy of our data that is something
like a list where each element contains the portion of the
On Mon, Oct 3, 2011 at 12:24 PM, Thomas Adams thomas.ad...@noaa.gov wrote:
I'm interested in creating a graphic -like- this:
c - ggplot(mtcars, aes(qsec, wt))
c + geom_point() + stat_smooth(fill=blue, colour=darkblue, size=2, alpha
= 0.2)
but I need to show 2 sets of bands (with different
You need to set the labels...
Hadley
On Sat, Sep 24, 2011 at 3:49 AM, Casper Ti. Vector
caspervec...@gmail.com wrote:
Is there any way to use expression() in legend labels with ggplot2?
It seems that things like
scale_shape_manual(value = c(
x = expression(italic(x)),
y =
# Function to compute quantiles and return a data frame
g - function(d) {
qq - as.data.frame(as.list(quantile(d$y, c(.05, .25, .50, .75, .95
names(qq) - paste('Q', c(5, 25, 50, 75, 95), sep = '')
qq }
You could cut out the melt step by making this return a data frame:
g -
apply(mt, 1, function(x) x[!is.nan(x)] )
[[1]]
[1] 1 3
[[2]]
[1] 4 5 6
You need to be a little careful with apply:
mt2 - matrix(c(1,4,2,5,3,6),2,3)
apply(mt2, 1, function(x) x[!is.nan(x)] )
[,1] [,2]
[1,]14
[2,]25
[3,]36
Depending on the input you will get a
.
Best Wishes,
Boris
On Wed, Sep 21, 2011 at 3:11 PM, Hadley Wickham had...@rice.edu wrote:
Hi all,
Does anyone have an R implementation of the queplot (K. M. Goldberg
and B. Iglewicz. Bivariate extensions of the boxplot. Technometrics,
34(3):pp. 307–320, 1992)? I'm struggling
Hi all,
Does anyone have an R implementation of the queplot (K. M. Goldberg
and B. Iglewicz. Bivariate extensions of the boxplot. Technometrics,
34(3):pp. 307–320, 1992)? I'm struggling with the estimation of the
asymmetry parameters.
Hadley
--
Assistant Professor / Dobelman Family Junior
Because in coding, I often end up with big chunks looking like this:
((mydataframeName$myvariableName 2
!is.na(mydataframeName$myvariableName))
(mydataframeName$myotherVariableName == male
!is.na(mydataframeName$myotherVariableName)))
Which is much less
z - ddply(past, c(GEO_CNTRY_NAME,PROD_SEG_NAME),
function(x) summary(lm(VAL~fy,x))$r.squared)
But when ave is not exactly doing what I need. Above code runs under a
minute for my data set where as ave runs over 8 mins.
It's hard to know without a reproducible example, but I doubt that
ddply
# Method 2: Use the plyr package
library('plyr')
bdf - ldply(mlply(files, read.csv, header = TRUE), rbind)
Or just
bdf - ldply(files, read.csv, header = TRUE)
Hadley
--
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
http://had.co.nz/
The following example does what you want using ddply:
library(plyr)
edfPerGroup = ddply(df, .(Group), summarise, edf = edf(Value), Value =
Value)
Or slightly more succinctly:
ddply(df, .(Group), mutate, edf = edf(Value))
Hadley
--
Assistant Professor / Dobelman Family Junior Chair
You will get the warning that last last column is not going right but
otherwise this returns what you asked for:
sapply(1:length(mydf), function(i) mydf[[i]]* as.numeric(names(mydf)[i]) )
This suits my purposes well with a couple slight modifications:
## I made this into a data.frame so I
if give non-data-frames.
-s
On Thu, Jul 28, 2011 at 19:30, Hadley Wickham had...@rice.edu wrote:
Use plyr::rbind.fill? That does match up columns by name.
Hadley
On Thu, Jul 28, 2011 at 5:23 PM, Stavros Macrakis macra...@alum.mit.edu
wrote:
I have a file of data where each line
# plyr
plyr is a set of tools for a common set of problems: you need to
__split__ up a big data structure into homogeneous pieces, __apply__ a
function to each piece and then __combine__ all the results back
together. For example, you might want to:
* fit the same model each patient subsets of
struc.test - breakpoints(y~x1+x2+x3+x3+x4, data=D)
*I get an error message:*
Erreur dans chol2inv(qr.R(fm$qr)) :
l'?l?ment (5, 5) est nul, donc l'inverse ne peut ?tre calcul?
(sorry for the french version, I don't know how to get the message
english translation in R).
My first
And I think Uwe is missing from that list!
Hadley
On Fri, Jul 29, 2011 at 3:34 PM, Paul Menzel
paulepan...@users.sourceforge.net wrote:
Dear R webmasters,
my browser defaults to the charset UTF-8 and since [1] seems to be
encoded in ISO-8859-1 the umlauts are not displayed correctly. It
Use plyr::rbind.fill? That does match up columns by name.
Hadley
On Thu, Jul 28, 2011 at 5:23 PM, Stavros Macrakis macra...@alum.mit.edu wrote:
I have a file of data where each line is a series of name-value pairs, but
where the names are not necessarily the same from line to line, e.g.
This is called a squarified pie chart or a waffle chart (if you want
to keep the food metaphor going):
http://eagereyes.org/communication/Engaging-readers-with-square-pie-waffle-charts.html
Hadley
On Thu, Jul 21, 2011 at 10:29 AM, Dimitri Liakhovitski
dimitri.liakhovit...@gmail.com wrote:
Also, if we make days a list, the class attributes are kept when looping
over the list, ie.
days- list( as.Date( c(2000-01-01, 2000-01-02) ) )
Do you realise that that's a list with length one?
I suspect you want
days - as.list( as.Date( c(2000-01-01, 2000-01-02) ) )
for (day in days) {
Thank you, this is very helpful. One final question regarding this method:
suppose a function prints multiple plots, i.e. multiple pages to a PDF. Is
it possible to record all of these plots at once? The code below only
records the final plot. I would like to record all of them, without
You should only have one scale_ call for each scale type. Here, you have
three scale_colour_ calls, the first selecting a grey scale, the second
defining a single break with its label (and thus implicitly subsetting on
that single break value), and a second which defines a different
Maybe something like this?
withNames - function(dframe, lineNames, plotName, colors){
one_day - subset(dframe, data == '1941-06-16')
one_day$lineNames - lineNames
ggplot(dframe, aes(date, value, group = factor, color = factor)) +
geom_line(size = 1) +
facet_grid(Facet~., scales =
On Thu, Jul 7, 2011 at 5:24 PM, Dennis Murphy djmu...@gmail.com wrote:
Hi:
Here's another approach using the plyr package:
library(plyr)
df - data.frame(gp = factor(rep(1:3, each = 4)), x = rnorm(12), y =
rnorm(12))
mylst - split(df, df$gp)
mycoefs - ldply(mylst, function(d) coef(lm(y ~
# stringr
Strings are not glamorous, high-profile components of R, but they do
play a big role in many data cleaning and preparations tasks. R
provides a solid set of string operations, but because they have grown
organically over time, they can be inconsistent and a little hard to
learn.
On Thu, Jun 30, 2011 at 7:31 AM, Ashim Kapoor ashimkap...@gmail.com wrote:
Dear R helpers,
I have molten data which is : -
t3
Year variable value
1 2005 ICICI.Bank 27488370
2 2006 ICICI.Bank 43166850
3 2007 ICICI.Bank 59515300
4 2008
Here's a non plyr approach:
tab.df - as.data.frame(table(df))
tab.df[tab.df$Freq 0, ]
x y Freq
1 1 1 2
4 4 1 1
7 2 2 2
13 3 3 1
18 3 4 1
19 4 4 1
25 5 5 1
But look at str(tab.df) - x and y are now factors (or characters). I
wrote count to avoid this
Yes, the basic problem is that you forgot to melt the data before
trying to cast it.
Hadley
On Thursday, June 9, 2011, misterbray misterb...@gmail.com wrote:
Dennis, doing some more research, and it seems you actually can include the
... term directly in the formula: cf. page 8 of
Doesn't deal with what problems?
Hadley
On Thursday, June 2, 2011, rmje robinmje...@gmail.com wrote:
I have been browsing the pages about ggplot and it really doesn't deal with
such problems as far as I can see.
--
View this message in context:
Hi Albert-Jan,
It's impossible to know what went wrong without a reproducible example
(https://github.com/hadley/devtools/wiki/Reproducibility). Without
that, all I can recommend is trying out reshape2.
Hadley
On Tue, May 31, 2011 at 9:44 AM, Albert-Jan Roskam fo...@yahoo.com wrote:
Hi,
I'm
If a function uses substitute() or its equivalent to avoid evaluating
its arguments in the normal way, you are pretty much forced to use
eval() with the output of substitute() or call() or use do.call()
to evaluate the arguments it will not evaluate for itself.
Which is why I'd argue all
Hi all,
I hope you don't mind the slightly off topic email, but I'm going to
be teaching an R development master class in San Francisco on June
8-9. The basic idea of the class is to help you write better code,
focused on the mantra of do not repeat yourself. In day one you will
learn powerful
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