Hi all,
I often keep code in separate files for organizational purposes, and
source() that code from higher level scripts. One problem is that those
sourced files often create temporary variables that I don't want to keep
around. I could clean up after myself with lots of rm()'s, but that's
Did you read this?
https://cran.r-project.org/doc/contrib/Leisch-CreatingPackages.pdf
Maybe it could give you some insight in how to create package.
That resource is ~9 years old. There are more modern treatments available. You
can read mine at http://r-pkgs.had.co.nz.
Hadley
Thanks both.
Hello all,
I am trying to decide how to structure an R package. Specifically, do I
use OO classes, or just provide functions? If the former, how should I
structure the objects in relation to the type of data the package is
intended to manage?
I have searched for, but haven't found, resourc
Hello All,
I need to calculate cumulative lengths along a hierarchical network
topology (it's a representation of a tree). I can roll my own, but
thought that there might be a package out there that would handle
hierarchical network topology functions such as this nicely (and that
might brin
ng the namespace does not unload DLL
* checking loading without being on the library search path ... OK
For further details on my thoughts on this, see
https://github.com/HenrikBengtsson/Wishlist-for-R/issues/29.
Hope this helps
Henrik
On Tue, Sep 13, 2016 at 6:05 AM, Alexander Shenkin wrote:
Hello a
Hello all,
I have a number of analyses that call bunches of sub-scripts, and in the
end, I get the "maximal number of DLLs reached" error. This has been
asked before (e.g.
http://stackoverflow.com/questions/36974206/r-maximal-number-of-dlls-reached),
and the general answer is, "just clean up
Hello all,
I tried posting on r-sig-ME, but it's not going through. So I thought I
would try here. Apologies if this ends up being a cross-post if it
eventually goes through there
I am parameterizing exponential fits for some metabolic scaling models.
I have done this in lmer already,
Hello all,
I've run a model, and now would like to extract residuals. However, I
have set sum-to-zero contrasts for the categorical fixed effect
(contr.sum). Because I am interested in looking at the variation in the
residuals associated with that fixed effect (along with other levels), I
n
only going to get a very
rough approximation no matter the method used.
Regards,
Charles
On Mon, Mar 21, 2016 at 7:59 AM, Alexander Shenkin mailto:ashen...@ufl.edu>> wrote:
Hello all,
I have sets of 4 x/y points through which I would like to fit
closed, smoothed shapes that g
Hello all,
I have sets of 4 x/y points through which I would like to fit closed,
smoothed shapes that go through those 4 points exactly. smooth.spline
doesn't like my data, since there are only 3 unique x points, and even
then, i'm not sure smooth.spline likes making closed shapes.
Might an
Hi all,
ggplot2 (v2.0.0) does not seem to respect factor order when stacking
bars in geom_bar().
##
> dput(temp)
structure(list(phylo_sig = c(0.148740270638472, 0.148740270638472,
0.148740270638472, 0.148740270638472, 0.148740270638472), trait =
c("p_corrected_percent",
"p_co
Hello all,
I've been banging my head over what must be a simple solution. I would
like to apply a function across columns of a dataframe for rows grouped
across different columns. These groups are not exclusive. See below
for an example. Happy to use dplyr, data.table, or whatever. Any
g
Hello all,
I am working with data on tree crowns, and this data describes points
(verticies) around the polyhedron of the crown volume (think of the
crown as a single volume with vertices and faces). I can calculate
maximum z distance between any 2 points (maximum depth) and maximum x/y
dist
Hello all,
I've been trying to figure out how to return a named list from foreach.
Given that the order of the returned list is guaranteed to be in the
order in which the object is passed to foreach, list members can be
named afterwards. However, I'm wondering if there's a better way to do
i
Hello all,
I have a set of points in 3D space that represent vertices of a
non-convex polyhedron. I would like to plot this polyhedron, and have
been trying to do so with rgl.triangles, but to no avail. I imagine I
don't understand what rgl.triangles expects for arguments. I have
construct
Hello all,
I have sets of points in (x,y,z) that represent polyhedron vertices
(actually tree crowns). I have used convhulln to estimate volumes (the
shapes are not necessarily convex, but good enough for now). Now I would
like to extract various dimensions of these shapes - horizontal width
Hi Folks,
I have a set of x,y,z points in 3D space that defines the outline of a
tree crown (5 - 15 perimeter points + 1 top & bottom point). I would
like to calculate the volume of the corresponding 3D polygon based on
those points. I have been able to use geometry::convhulln, but I think
t
Hi folks,
I'm interested in finding files by matching both filenames and
directories via regex. If I have:
dir1_pat1/file1.csv
dir2_pat1/file2.csv
dir2_pat1/file3.txt
dir3_pat2/file4.csv
I would like to find, for example, all csv files in directories that
have "pat1" in their
> /Software/Embedded Controllers) .OO#. .OO#. rocks...1k
> -----------
> Sent from my phone. Please excuse my brevity.
>
> Alexander Shenkin wrote:
>> Hi Folks,
>>
>> Using ggplot, I've produced the followin
p of my head, I'd suggest trying ggsave() with the extension
> ".svg" . I realize that SVG files are not recognized by some image display
> apps (Microsoft Windows I'm looking at YOU), but IMHO it's the best choice
> for vectorized images.
>
>
>
Hi Folks,
Using ggplot, I've produced the following graphic:
http://i.imgur.com/39a139C.png
The graphics in the plot seem to be bitmapped and not vectorized. That
is, the vertical and horizontal lines jump rows of pixels instead of
having just nice, angled lines. Any thoughts about how to get t
Hi Folks,
I'm trying to load devtools in R 3.0.1 in order to run the dev version
of lme4. I've updated devtools, and just installed Rtools30.exe.
However, I get the following warning (in R-Studio, RGui, and R.exe, both
x64 and i386):
-
WARNING: Rtools is required to build R pack
d suggest looking at the help files
> associated with the "rtf" package to make any modifications, such as adding
> other regression results/tables.
>
> Thanks and hope this helps,
>
> Carlos
>
>
> On Tue, Apr 2, 2013 at 12:13 PM, Alexander Shenkin wrote:
&
of spss (by means of
> spsspivottable.Display())
> Frans
>
>
> 2013/4/2 Alexander Shenkin
>
>> Hello all,
>>
>> What is your preferred method to export tables (from ftable()) to Word?
>> Do you just export to
Hello all,
What is your preferred method to export tables (from ftable()) to Word?
Do you just export to a text file and then copy/paste? Or perhaps via
HTML output?
Thanks,
Allie
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/list
Thanks, John. Your solution gives me:
> ddply(my_df, .(a), summarize, mm = mean(dat), number = length(dat))
a mm number
1 0 14 3
2 1 11 3
I'm looking for (and Ista found a way):
>> a b c mean n
>> 1 1 * * 11 3
>> 2 * 1 * 14 3
>> 3 * * 1 12 3
thanks,
allie
On 3/20/2013 3:2
"mean"=mean(x$dat), "n"=nrow(x)))
>
> ?
>
> Best,
> Ista
>
> On Wed, Mar 20, 2013 at 3:57 PM, Alexander Shenkin wrote:
>> Hi folks,
>>
>> I'm trying to figure out how to get summarized data based on multiple
>> columns
Hi folks,
I'm trying to figure out how to get summarized data based on multiple
columns. However, instead of giving summaries for every combination of
categorical columns, I want it for each value of each categorical column
regardless of the other columns. I could do this with three different
co
Hello,
I'm trying to extract the independent variables from a formula. The
closest I've been able to come, aside from rolling my own, is the following:
> a = y ~ b * x
> attr(terms(formula(a)),"variables")
The reason I'm doing this is that I'm building a grid of points that I
use to construct a
On 11/2/2012 5:14 PM, Gabor Grothendieck wrote:
> On Fri, Nov 2, 2012 at 6:02 PM, Alexander Shenkin wrote:
>> Hi Folks,
>>
>> I'm trying to extract just the backreferences from a regex.
>>
>>> temp = "abcd1234abcd1234"
>>> regma
Hi Folks,
I'm trying to extract just the backreferences from a regex.
> temp = "abcd1234abcd1234"
> regmatches(temp, gregexpr("(?:abcd)(1234)", temp))
[[1]]
[1] "abcd1234" "abcd1234"
What I would like is:
[1] "1234" "1234"
Note: I know I can just match 1234 here, but the actual example is
compl
y")
> pkgnames32 = pkgs32[,"Package"]
> pkgnames64 = pkgs64[,"Package"]
> as.character(pkgnames32[which(is.na(match(pkgnames32, pkgnames64)))])
[1] "RSVGTipsDevice" "RSvgDevice" "eco""rcqp"
"sparsenet"
Hi folks,
Despite the pain of migrating to 64-bit R (I have to install 64-bit Office also
due to RODBC), I'm considering making the leap due to memory issues. Is there
any place that lists packages that are 64-bit incompatible? Or, will I just
have to march through all my packages and check th
System Info:
R 2.14.2
Windows 7 Pro x64 SP1
8GB RAM
On 10/18/2012 3:42 PM, Alexander Shenkin wrote:
> Hi Folks,
>
> I've been bumping my head against the 4GB limit for 32-bit R. I can't
> go to 64-bit R due to package compatibility issues (ROBDC - possible but
> pa
Hi Folks,
I've been bumping my head against the 4GB limit for 32-bit R. I can't
go to 64-bit R due to package compatibility issues (ROBDC - possible but
painful, xlsReadWrite - not possible, and others). I have a number of
big dataframes whose columns all sorts of data types - factor,
character,
Hello All,
I need a script to perform different actions depending on the file from
which it was source()'d. Thus, my script needs a way to figure out from
whence it was sourced.
There seems to be some relevant information in sys.calls() (see below).
However, I need to get at the name of the fil
Hi Folks,
I'm trying to find a way to remove all terms in a formula that contain a
particular interaction.
For example, in the formula below, I'd like to remove all terms that
contain the b:c interaction.
> attributes(terms( ~ a*b*c*d))$term.labels
[1] "a" "b" "c" "d" "a
_date
[1] NA
Warning message:
In as.POSIXlt.POSIXct(x, tz) : NAs introduced by coercion
> is.na(bad_date) # shouldn't this be TRUE?
[1] FALSE
As nasty as it may be, shouldn't something showing up as "NA" result in
TRUE when being tested by is.na()?
Just to put some context a
Hello folks,
I found a strangeness while experimenting with POSIXct vectors and
lists. It seems that coerced NA's aren't "real" NAs, at least as
considered by is.na()?
> date_vec = c(as.POSIXct(now()), as.POSIXct(now()+1),NA,"b")
> date_vec
[1] "2012-08-22 15:00:46 COT" "2012-08-22 15:00:47 COT"
Hi Folks,
I'm surprised, but I didn't find this question addressed anywhere. I'd
like to generate a LaTeX caption with R code. I've tried the code
below, but I get the following TeX error:
! Argument of \@caption has an extra }.
\par
l.21 }
Any thoughts? Perhaps I'll have to
Hi Folks,
I'm using Sweave to generate png & pdf graphics that I then "Import &
Link" in a Word document. This let's me create sharable and editable
dynamic documents. They are dynamic in that I can regenerate figures
when the data changes, and have those figures automatically updated in
my Word
PM, Roy Mendelssohn wrote:
> http://www.rforge.net
>
> -Roy
>
> On Aug 7, 2012, at 3:25 PM, Alexander Shenkin wrote:
>
>> Hi Folks,
>>
>> I've looked around, haven't found anything, and I'm not sure where else
>> to check. I haven't vis
Hi Folks,
I've looked around, haven't found anything, and I'm not sure where else
to check. I haven't visited R-forge (http://r-forge.r-project.org) in a
long time. Now that I'm trying, it seems to be down. Anyone know if
this is a temporary condition, and if so, when it's expected to rise agai
ecessarily a desirable thing (the spacing between rows and columns
> can become too large).
>
>
> HTH,
>
> baptiste
>
>
> [*] experimental code at https://gist.github.com/2013903
>
> On 26 May 2012 09:16, Alexander Shenkin wrote:
>> Thanks Yihui,
>>
>> Th
s in this case, though.
>
> Regards,
> Yihui
> --
> Yihui Xie
> Phone: 515-294-2465 Web: http://yihui.name
> Department of Statistics, Iowa State University
> 2215 Snedecor Hall, Ames, IA
>
>
> On Fri, May 25, 2012 at 2:44 PM, Alexander Shenkin wrote:
>> grid.
;
> On Mon, May 21, 2012 at 4:29 PM, Alexander Shenkin wrote:
>> Hello folks,
>>
>> I've been on a journey trying to figure out how to manage documents that
>> are amenable to sharing and editing, but that contain dynamic content
>> generated by R. I'v
Hello Folks,
Is there any way to pass a list into a function such that the function
will use the list as its arguments? I haven't been able to figure that out.
The background: I'm trying to build a function that will apply another
function multiple times, each time with a different set of specif
,
Allie
On 5/22/2012 4:36 AM, Liviu Andronic wrote:
> On Mon, May 21, 2012 at 10:29 PM, Alexander Shenkin wrote:
>> So, I think it will be better if I can somehow generate the tables as
>> images. Is there any way to generate tables as images in separate files
>> in Sweave?
Thanks Michael - I think grid.table does the trick.
On 5/21/2012 3:33 PM, R. Michael Weylandt wrote:
> Take a look at addtable2plot in plotrix or grid.table / tableGrob in
> gridExtras.
>
> Michael
>
> On Mon, May 21, 2012 at 4:29 PM, Alexander Shenkin wrote:
>> Hello fol
Hello folks,
I've been on a journey trying to figure out how to manage documents that
are amenable to sharing and editing, but that contain dynamic content
generated by R. I've come to the following solution: I use Sweave to
generate labeled png & pdf figures, and I "Insert & Link" those figures
Hi Folks,
I'm running 32-bit R 2.14 in RStudio on my Win 7 x64 system with 8GB
RAM. I'm getting memory problems as R wants to swallow more than the
4GB limit.
I think I'm stuck at 4GB as I have to use 32-bit R for a number of
packages (ODBC, etc). However, I doubt I really need to be using that
On 5/2/2012 11:40 AM, Duncan Murdoch wrote:
> On 02/05/2012 12:26 PM, Duncan Murdoch wrote:
>> On 02/05/2012 11:00 AM, Alexander Shenkin wrote:
>> > Hi Folks,
>> >
>> > I'm trying to get rgl.Sweave to produce plots with transparency.
>> > H
Hi Folks,
I'm trying to get rgl.Sweave to produce plots with transparency.
However, it just seems to produce opaque plots when pdf is the output
type. Perhaps this is a known issue? I'll just use .png in the
meantime, but wanted to see about this, as I didn't see it in the
documentation (though
found <- pmin(cumsum(.row) + 1, 3) # cannot be greater than 3
> + # determined where it died
> + die <- cumsum(diff(c(0, .row)) != 0)
> + # replace value at die == 2 with 4
> + found[die == 2] <- 4
> + c(NA, "found", "alive",
Hello Folks,
I have 5 columns for thousands of tree records that record whether that
tree was alive or dead. I want to recode the columns such that the cell
reads "found" when a live tree is first observed, "alive" for when a
tree is found alive and is not just found, and "mort" when it was
previ
art of the document.
>>
>> SWord is by Thomas Baier tho...@statconn.com, author of the statconnDCOM
>> interface
>> that is underneath RExcel. See rcom.univie.ac.at for information and
>> download and to
>> sign up on the rcom email list.
>>
>> Ri
formation and download and to
> sign up on the rcom email list.
>
> Rich
>
> On Sat, Apr 7, 2012 at 4:54 PM, Alexander Shenkin <mailto:ashen...@ufl.edu>> wrote:
>
> Hello All,
>
> I'm getting my workflow switched over to Sweave, which is very
e through a version control system like
> SVN or GIT. Markdown is easy to write and cleaner compared to Word.
>
> Regards,
> Yihui
> --
> Yihui Xie
> Phone: 515-294-2465 Web: http://yihui.name
> Department of Statistics, Iowa State University
> 2215 Snedecor Hall, A
Hello All,
I'm getting my workflow switched over to Sweave, which is very cool.
However, I collaborate with folks (as many of you must as well) who use
Word to Track Changes amongst a group while crafting a paper. In the
simplest case, there will just be two people (one Sweave user and one
Word u
>
> Regards,
> Yihui
> --
> Yihui Xie
> Phone: 515-294-2465 Web: http://yihui.name
> Department of Statistics, Iowa State University
> 2215 Snedecor Hall, Ames, IA
>
>
>
> On Thu, Apr 5, 2012 at 12:26 PM, Alexander Shenkin wrote:
>> Yep, I'm using RSt
Ames, IA
>
>
>
> On Thu, Apr 5, 2012 at 11:22 AM, Duncan Murdoch
> wrote:
>> On 04/04/2012 3:25 PM, Alexander Shenkin wrote:
>>>
>>> Hello Folks,
>>>
>>> When I run the document below through sweave, rgui.exe/rsession.exe
>>> lea
PM, Alexander Shenkin wrote:
>> Hello Folks,
>>
>> When I run the document below through sweave, rgui.exe/rsession.exe
>> leaves a file handle open to the sweave-001.pdf graphic (as verified by
>> process explorer). Pdflatex.exe then crashes (with a Permission Denied
>
ssing code chunks with options ...
> 1 : keep.source term verbatim pdf
>
> Error: chunk 1
> Error in plot.xy(xy, type, ...) : object 'foo' not found
> R> ls()
> [1] "col.yellowbg" "df"
> R> dev.list()
> pdf
> 2
> R> dev.off()
> nu
uot; "yes"
>
On 4/4/2012 2:45 PM, Henrik Bengtsson wrote:
> See ?closeAllConnections
>
> Suggestion to the maintainer of Sweave: "atomify" the figure
> generation, e.g. use { pdf(); on.exit(dev.off()); {...}; } or similar,
> instead of { pdf(); {...}; dev.off(); }
Hello Folks,
When I run the document below through sweave, rgui.exe/rsession.exe
leaves a file handle open to the sweave-001.pdf graphic (as verified by
process explorer). Pdflatex.exe then crashes (with a Permission Denied
error) because the graphic file is locked.
This only seems to happen whe
Hi Folks,
I'm trying to cut my data inside the summaryBy function. Perhaps
formulas don't work that way? I'd like to avoid adding another column
if possible, but if I have to, I have to. Any ideas?
Thanks,
Allie
require(doBy)
df = dataframe(a <- rnorm(100), b <-rnorm(100))
summary
Hello,
I need to take a dot product of each row of a dataframe and a vector.
The number of columns will be dynamic. The way I've been doing it so
far is contorted. Is there a better way?
dotproduct <- function(dataf, v2) {
apply(t(t(as.matrix(a)) * v2),1,sum) #contorted!
}
Hello Folks,
I'm trying to vectorize a loop that processes rows of a dataframe. It
involves lots of conditionals, such as "If column 10 == 3, and if column
3 is True, and both column 5 and 6 are False, then set column 4 to True".
So, for example, any ideas about vectorizing the following?
df =
On 6/22/2011 4:09 PM, Brian Diggs wrote:
> On 6/22/2011 1:37 PM, Alexander Shenkin wrote:
>> On 6/22/2011 3:34 PM, Brian Diggs wrote:
>>> On 6/22/2011 12:09 PM, Luke Miller wrote:
>>>> For what it's worth, I cannot reproduce this problem under a nearly
>>&g
wday = 0L, yday = 123L, isdst = -1L), .Names = c("sec",
"min", "hour", "mday", "mon", "year", "wday", "yday", "isdst"
), class = c("POSIXlt", "POSIXt"))
> dput(as.POSIXct(strptim
he switchover took place near the beginning of
> April in 1992, so you should have isdst=1 by May 3.
> Perhaps you have an odd timezone file on your machine.
>
> Bill Dunlap
> Spotfire, TIBCO Software
> wdunlap tibco.com
>
>> -Original Message-
>> From:
On 6/22/2011 1:34 PM, Sarah Goslee wrote:
> On Wed, Jun 22, 2011 at 2:28 PM, David Winsemius
> wrote:
>>
>> On Jun 22, 2011, at 2:03 PM, Sarah Goslee wrote:
>>
>>> Hi,
>>>
>>> On Wed, Jun 22, 2011 at 11:40 AM, Alexander Shenkin
>>> wr
On 6/22/2011 1:03 PM, Sarah Goslee wrote:
> Hi,
>
> On Wed, Jun 22, 2011 at 11:40 AM, Alexander Shenkin wrote:
>>> is.na(strptime("5/2/1992", format="%m/%d/%Y"))
>> [1] FALSE
>>> is.na(strptime("5/3/1992", format="%m/%d/%Y&quo
> is.na(strptime("5/2/1992", format="%m/%d/%Y"))
[1] FALSE
> is.na(strptime("5/3/1992", format="%m/%d/%Y"))
[1] TRUE
Any idea what's going on with this? Running strptime against all dates
from around 1946, only 5/3/1992 was converted as "NA". Even stranger,
it still seems to have a value associa
Hello Folks,
As some of my old code broke when an updated package changed its
interface, I started thinking about reproduction of analyses. It's not
good enough to save our code - we have to save the package versions
those analyses used as well as the R-core. I saw a couple references to
"reprod
Hello list,
I need to keep track of objects that are related to particular
observations. In this case, I need to keep track of polygons that are
associated with observations. What I would ideally have is one column
of a dataframe hold a "polygonal" object (from the spatstat package).
My questio
Hello Folks,
I do hope this is the correct place to post (and not in R-SIG-DB). I have
spent the better part of a day searching for an answer to this question, and
have yet to resolve it.
I am trying to query an .accdb Access database (with 32-bit Office 2007
currently residing on the machine) w
Hello All,
I'm trying to run a maximum likelihood analysis using dmultinomial (i'm
avoiding dmultinom as I'd like to run it with vectors for the ML stuff).
However, I'm having a hard time getting even the simplest example
running. Any help would be greatly appreciated.
> library(mc2d)
> dmultin
Hello All,
I'm trying to run a maximum likelihood analysis using dmultinomial (i'm
avoiding dmultinom as I'd like to run it with vectors for the ML stuff).
However, I'm having a hard time getting even the simplest example
running. Any help would be greatly appreciated.
> library(mc2d)
> dmultin
Hello All,
Searched around, haven't found a decent solution.
I'd like to translate a vector of numbers to a matrix (or to a list of
vectors) such that the vector values would serve as indicies of the 1's
in an otherwise-zero-filled matrix (or list of vectors). For example:
> a = c(1,3,3,4)
# pe
On 5/20/2010 9:18 AM, David Winsemius wrote:
>
> On May 20, 2010, at 10:02 AM, Alexander Shenkin wrote:
>
>> Hello all,
>>
>> I've been pouring through the various spatial packages, but haven't come
>> across the right thing yet.
>
> There is a
very welcome. Thanks in advance.
Thanks,
Allie
--
Alexander Shenkin
PhD Candidate
School of Natural Resources and Environment
University of Florida
http://snre.ufl.edu/people/students.asp
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/l
>
>> -Original Message-
>> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-
>> project.org] On Behalf Of Alexander Shenkin
>> Sent: Thursday, 20 May 2010 8:19 a.m.
>> To: r-help@r-project.org
>> Subject: [R] export dataframe's column cla
_col_classes()" function above.
Any thoughts are greatly appreciated!
Thanks,
Allie
--
Alexander Shenkin
PhD Candidate
School of Natural Resources and Environment
University of Florida
http://snre.ufl.edu/people/students.asp
__
R-help@r-pro
You could also put the call to system.time inside the function itself:
f = function(x) {
system.time({
... #function's code
ret_val = ...
}); flush.console();
return ret_val;
}
i s'pose you'd miss out on the time taken to jump to the function code,
return the value, et
not, does
anyone know what the bottleneck there is? That is, what keeps me from
compiling it myself and handing it to a friend with another windows system?
Thanks,
Allie
--
Alexander Shenkin
PhD Candidate
School of Natural Resources and Environment
University of Florida
http://snre.ufl.
Hi Alessia,
Note that, while your physical limit might be 6 GB, Windows memory
management allows more memory than that to be allocated (aka Virtual
Memory, or at least that's what they called it in XP). Windows swaps
out memory from RAM to the hard disk and back when necessary (please
excuse the
Though, from my limited understanding, the 'apply' family of functions
are actually just loops. Please correct me if I'm wrong. So, while
more readable (which is important), they're not necessarily more
efficient than explicit 'for' loops.
allie
On 9/2/2009 3:13 AM, Phil Spector wrote:
> Here's
Hi Judith,
This probably isn't the only way to do it, but:
gsub("\\(.*?\\)", "", myvector, perl=TRUE)
seems to do the trick.
The problem is that regular expressions are greedy, so you were matching
everything between the first and last parens, as you noticed. Putting
the question mark ther
sed
the previous emails.
> Your final_dataf is same as df.
Yes, that is the point. As I mentioned in the first email of this
thread, I was trying to get around as.data.frame's automatic conversion
routines, in order to retain the original column types. And it turned
out that gsub() w
left out "as.data.frame" in my previous
solution. So it now becomes:
> final_dataf = as.data.frame(lapply(final_dataf, function(x){ is.na(x)
+ <- grep('^\\s*$',x); return(x) }), stringsAsFactors = FALSE)
Hope that clarifies things, and thanks for your help.
Thanks,
All
On 8/21/2009 3:04 PM, David Winsemius wrote:
>
> On Aug 21, 2009, at 3:41 PM, Alexander Shenkin wrote:
>
>> Thanks everyone for their replies, both on- and off-list. I should
>> clarify, since I left out some important information. My original
>> dataframe has some
,
take the more specified class
names(col_types)=NULL
col_types = unlist(col_types)
final_dataf = as.data.frame(lapply(final_dataf, function(x)
gsub('^\\s*$',NA,x)), stringsAsFactors = FALSE)
final_dataf = reset_col_types(final_dataf, col_types)
Thanks,
Allie
On 8/21/2009 10:54 AM
Hello all,
I have a list which I'd like to convert to a data frame, while
maintaining control of the columns' data types (akin to the colClasses
argument in read.table). My numeric columns, for example, are getting
converted to factors by as.data.frame. Is there a way to do this, or
will I have
Hello All,
I am trying to write a function which would operate on columns of a
dataframe specified in parameters passed to that function.
f = function(dataf, col1 = "column1", col2 = "column2") {
dataf$col1 = dataf$col2 # just as an example
}
The above, of course, does not work a
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