Displaying 20 results from an estimated 800 matches similar to: "A slight trap in read.table/read.csv."
2008 Aug 06
3
Help in running Stata dataset in R
Dear All,
I installed R 2.7.0 and tried to call a dataset i had ealier own called
on R2.6.2 but i keep on getting an error:
use("maltreat.dta")
Error in fromchar(x) :
character string is not in a standard unambiguous format
Tried doing the same with R2.7.1 but i get the same error.
However if i call the same on R 2.6.2, there is no error:
use("maltreat.dta")
> des()
2005 Dec 18
13
calculate age based on DoB
Hi,
I wrote a little helper that calulates someone''s age based on his/her
date of birth.
def age(dob)
diff = Date.today - dob
age = (diff / 365.25).floor
age.to_s
end
It works fine, but it''s not completely accurate as it just takes the
average days in a year. It should be able to calculate this more
accurately, right? I can''t work it out
2012 Jan 12
2
virt-install Error
Hi All,
I'm trying to install a VM on host OS (Redhat 6.1, KVM hypervisor).
I've installed all the required RPMs for KVM and libvirt tools.
Here is the list of libvirt RPMs and KVM modules
*kvm.ko
kvm-intel.ko
libvirt-0.8.7-18.el6.x86_64.rpm
libvirt-java-devel-0.4.7-1.el6.noarch.rpm virt-top-1.0.4-3.8.el6.x86_64.rpm
libvirt-client-0.8.7-18.el6.x86_64.rpm
2018 Oct 16
2
Comprobar los nombres de columnas entre varios dataframes
Buenas tardes,
Quiero aplicar la función rbind y necesito tener los mismos nombres de
columnas. Como tengo unas 195 variables en cada dataframe, necesito
hacerlo de una forma rápida. Tengo 9 bases de datos y tengo que fusionar
todas. ¿Como puedo comprobar que los nombres de las variables son los
mismos? Y de lo contrario, ¿como detecto las diferencias?
He probado con
2006 Jan 22
23
calculate users age
i know it''s probably really simple, how do i work out someone''s age if i
have their d.o.b. stored as a date in my db.
cheers
--
Posted via http://www.ruby-forum.com/.
2011 Nov 07
2
Problem working with dates
Hello All,
I've been reading books about R for awhile now and am in the process of replicating the SAS analyses from an old report. I want to be sure that I can do all the things I need to in R before using it in my daily work.
So far, I've managed to read in all my data and have done some data manipulation. I'm having trouble with fixing an error in a date variable though, and was
2012 Nov 26
1
Plotting an adjusted kaplan-meier curve
Dear R-users
I am trying to make an adjusted Kaplan-Meier curve (using the Survival package) but I am having difficulty with
plotting it so that the plot only shows the curves for the adjusted results.
My data come from a randomised controlled trial, and I would like the adjusted Kaplan-Meier
curve to only show two curves for the adjusted survival: one for those on treatment (Treatment==1)
2010 Feb 23
1
Problem with strptime generating missing values where none appear to exist
Dear R Helpers,
I am having difficulty with strptime. I wish to find the differences between
two vectors of times. I have apparently no difficulty to convert the vectors
to the appropriate format using strptime. But, then difftime does not
calculate all the differences.
Here is the code and output:-
dob=strptime(as.character(datx$BDT),'%d-%b-%y'); dob$year=dob$year-100
2012 Jul 11
3
unable to subtract dates in R
Hi,
I wanted to calculate the age of people in my dataset by subtracting the
individual's date of birth from their intake into a program.
After several hours, searches of help archives, and the downloading of
lubiridate, I have had no luck with this.
Below is the code I used.
> intakeDS$DOB <- as.character(intakeDS$DOB)
> intakeDS$DOB <- as.Date(intakeDS$DOB,
2010 Oct 08
3
How to use Atxfer in AMI
Hi,
I'm trying to make a attended transfer through AMI. I though i could use
Atxfer, and it seems ok, but nothing happens.
And I can't find any how-to or description on how to do this. What more
do I have to do to make this work?
In Asterisk Call Manager:
Action: Atxfer
Channel: SIP/36-xxxxxx
Exten: 33
Priority: 1
Context: Phone
Response: Success
Message: Atxfer successfully queued
2007 Oct 27
2
Current value of object.method in helper
Hi,
I am currently working to generate selection from my validation table
where code and description pairs are stored. This works fine except
when the current value is not exist in validation table. There are
some old data which contains values that are no longer used and not in
my validation table. I do not want to add old values in my validation
table; however, I would like to display these
2012 Nov 29
1
instrumental variables regression using ivreg (AER) or tsls (sem)
Dear friends,
I am trying to understand and implement instrumental variables
regression using R.
I found a small (simple) example here which purportedly illustrates the
mechanics (using 2-stage least-squares):
http://www.r-bloggers.com/a-simple-instrumental-variables-problem/
Basically, here are the R commands (reproducible example) from that
site:
# ------ begin R
library(AER)
2012 Nov 26
1
Plotting an adjusted survival curve
First a statistical issue: The survfit routine will produce predicted survival curves for
any requested combination of the covariates in the original model. This is not the same
thing as an "adjusted" survival curve. Confusion on this is prevalent, however. True
adjustment requires a population average over the confounding factors and is closely
related to the standardized
2019 Oct 25
2
Duda de como contar casos por Programa.
Hola,
Tengo un tabla de datos con pacientes asistidos, para los cuáles tengo
variables como dni, género, programa de atención etc. Hay pacientes que
atendieron en más de un programa por lo cuál se repiten en la tabla. Lo que
quiero es poder contar con una matriz que me permita identificar la
cantidad de pacientes que coinciden entre programas.
Va un ejemplo:
[image: image.png]
Intenté de
2010 Dec 10
2
Remove 100 years from a date object
Hello,
I have some data that has dates in the form 27.02.37. I convert them to
a date object as follows:
as.Date(data$date,format="%d.%m.%y")
But this gives me years such as 2037 when I would like them to be 1937.
I thought of trying to take off some time i.e.
as.Date(camCD$DoB,format="%d.%m.%y") - 100*365
But that doesn't seem to work out correctly. Any ideas how to
2013 Sep 25
5
Asterisk TON number
Hi
Greeting to all you out there.
I am new at asterisk, I have been working with PLMN platforms telecommunication for 5 years with NSN and Huawei.
We have recently built an asterisk PBX with Trixbox and connected it to our MSS using Digium E1 cards(ISDN). Everything went smoothly as there are tons of information out there, except for the TON number.
If you have worked in Telecommunication you
2010 Jun 28
2
Lattice and Beamer
Two things I think are some of the best developments in statistics and production are the lattice package and the beamer class for presentation in Latex. One thing I have not become very good at is properly sizing my visuals to look good in a presentation.
For instance, I have the following code that creates a nice plot (sorry, cannot provide reproducible data).
2012 Nov 06
1
pivot table
Hello,
I have a data which looks like below: Some of the patients have multiple diagnosis.
ID(200 patients) Diag (100 unique Diag-200 in general) Proc (50 uniqe Proc) DOB (200) Gender (200)
a daig1
b diag2
c diag1
I want to reformat this data to :
ID diag1 diag 2 diag 3.. diagx proc1 proc2
2016 Jun 10
2
[RFC] LLVM Coroutines
On Fri, Jun 10, 2016 at 6:36 AM, Gor Nishanov <gornishanov at gmail.com> wrote:
> >> If you're going down that route, that still leaves the question of the
> >> semantics of the fork intrinsic... thinking about it a bit more, I think
> >> you're going to run into problems with trying to keep around a return
> block
> >> through optimizations:
2007 Sep 27
2
Virtual switches
Hi,
[1]
Are there guides for setting up a virtual switch for use in between
guest domains in Xen ?
[2]
In Xen, is it possible for a guest domain to perform a initial dhcp IP
lookup from another guest domain ?
How are the configurations like ?
Are there references or step procedures ?
Kindly advice.
Thanks.
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