Displaying 20 results from an estimated 600 matches similar to: "trabajar con todos los elementos de la fila de un data.table"
2011 Aug 27
46
[PATCH 0000/0046] Staging: hv: Driver cleanup
Further cleanup of the hv drivers.
1) Cleanup reference counting.
2) Handle all block devices using the storvsc driver. I have modified
the implementation here based on Christoph's feedback on my earlier
implementation.
3) Fix bugs.
4) Accomodate some host side scsi emulation bugs.
5) In case of scsi errors off-line the device.
This patch-set further reduces the size of
2011 Aug 27
46
[PATCH 0000/0046] Staging: hv: Driver cleanup
Further cleanup of the hv drivers.
1) Cleanup reference counting.
2) Handle all block devices using the storvsc driver. I have modified
the implementation here based on Christoph's feedback on my earlier
implementation.
3) Fix bugs.
4) Accomodate some host side scsi emulation bugs.
5) In case of scsi errors off-line the device.
This patch-set further reduces the size of
2003 Aug 20
2
RandomForest
Hello,
When I plot or look at the error rate vector for a random forest
(rf$err.rate) it looks like a descending function except for a few first
points of the vector with error rates values lower(sometimes much lower)
than the general level of error rates for a forest with such number of trees
when the error rates stop descending. Does it mean that there is a tree(s)
(that is built the first in
2005 Aug 04
7
[PATCH] Convert shutdown to use xenstore
The attached patch:
1. Converts the shutdown driver and xend to use the store instead of
control messages,
2. Includes Anthony''s xenstore notification code, and
3. Changes xend so that sysrq''s are no longer sent as "special case"
shutdown messages. Store keys are cheap, so making the sysrq
delivery less obscure is good.
I think I have made all of the
2010 Feb 10
2
Total least squares linear regression
Dear all,
After a thorough research, I still find myself unable to find a function
that does linear regression of 2 vectors of data using the "total least
squares", also called "orthogonal regression" (see :
http://en.wikipedia.org/wiki/Total_least_squares) instead of the
"ordinary least squares" method. Indeed, the "lm" function has a
1999 Aug 26
1
error bars on barplots
Hello again
I'm trying to put error bars onto a barplot. I've tried something that
Bill Simpson suggested a while ago, ie:
x<-c(1,2,3,4,5)
y<-c(1.1, 2.3, 3.0, 3.9, 5.1)
ucl<-c(1.3, 2.4, 3.5, 4.1, 5.3)
lcl<-c(.9, 1.8, 2.7, 3.8, 5.0)
plot(x,y, ylim=range(c(lcl,ucl)))
arrows(x,ucl,x,lcl,length=.05,angle=90,code=3)
#or
segments(x,ucl,x,lcl)
but I can't get it to work on a
2004 Aug 01
0
phylogenetic trees calculation
Dear all,
I would like to ask you the following:
I have data about different manuscripts, together with data about the
presence/absence of copying errors, in the days when manuscript were
really manuscripts. I would ideally like to use the data to draw a
phylogenetic tree, so that I can infer which ms was copied from which.
The error presence/absence is coded in binary format. The plan is to use
2023 Nov 29
0
computer algebra in R
Dear Konrad,
I presume that the system can be written as follows, where h0, d0, ga0, kga and kd are given:
err1 = h + hd + hga - h0;
err2 = d + hd - d0;
err3 = ga + hga - ga0;
err4 = hga - kga*h*ga;
err5 = hd - kd*h*d;
All error terms should be zero.
Do you need (a) the symbolic solution or (b) is a numeric solution fine?
I do not have any experience with yacas or caracas. But see below.
###
2018 Nov 21
3
[PATCH nbdkit v2 0/3] Rewrite xz plugin as a filter.
v2:
- Fixes a number of bugs in corner cases.
- Uses a 1M block size to fetch from the underlying plugin. This
improves performance considerably.
I also tested this much more thoroughly and can't find any more bugs.
Rich.
2005 Dec 01
1
Kalman Smoothing - time-variant parameters (sspir)
Dear R-brains,
I'm rather new to state-space models and would benefit from the extra
confidence in using the excellent package sspir.
In a one-factor model, If I am trying to do a simple regression where
I assume the intercept is constant and the 'Beta' is changing, how do
I do that? How do i Initialize the filter (i.e. what is appropriate to
set m0, and C0 for the example below)?
2020 Aug 06
5
[PATCH nbdkit NOT WORKING 0/2] vddk: Relax threading model.
I believe this roughly implements Nir's proposal here:
https://www.redhat.com/archives/libguestfs/2020-August/msg00028.html
Unfortunately it doesn't work for me. It actually slows things down
quite a lot, for reasons I don't understand. Note the adjustment of
the pool-max parameter and how it affects the total time. The results
are quite reproducible.
$ ./nbdkit -r -U - vddk
2018 Nov 21
5
[PATCH nbdkit 0/2] Rewrite xz plugin as a filter.
Matt asked if xz should really be a filter rather than a plugin. The
answer is yes, of course it should be! That's been something in the
todo file for a while.
The commit converts the xz plugin code into a filter (leaving the
plugin around, but deprecating it).
plugin: nbdkit xz file.xz
filter: nbdkit --filter=xz file file.xz
plugin: # can't be done
filter: nbdkit
2013 Jun 03
4
gráfica densidades
hola todosnecesito hacer un gráfica de este tipo, alguna idea ???
gracias
Patricio F.
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2018 Feb 12
4
problema de fechas
hola Patricio, usa:
dplyr::if_else
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2019 Oct 10
1
[PATCH NOT WORKING nbdkit] vddk: Restructure plugin to allow greater parallelism.
We had a query yesterday about the VDDK plugin and making it actually
obey the weird "Multithreading Considerations" rules in the VDDK
documentation
(https://vdc-download.vmware.com/vmwb-repository/dcr-public/8f96698a-0e7b-4d67-bb6c-d18a1d101540/ef536a47-27cd-481a-90ef-76b38e75353c/vsphere-vddk-671-programming-guide.pdf)
This patch is my attempt to implement this.
The idea is that the
2017 Jun 20
2
Contacting Delphi...the oracle is unavailable
Hola.
Para el tema del encoding, recomiendo usar Notepad++, tiene la opción de
convertir entre encodings.
Yo opté por homologar todos mis scripts a UTF-8, ya que trabajo en linux y
en windows.
Si a pesar de esto se tiene problemas, yo ejecuto:
options(encoding="UTF-8"), desafortunadamente esto no funciona para R
Notebook, ya que no compila y sale un error
Saludos.
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2019 Jul 18
2
predict multinomial model con nnet
Hola todos
Cuando realizo las predicciones del modelo multinomial con el paquete nnet,
estas cambian cada vez que lo ejecuto ... saben por qué pasa esto ??
Gracias por la ayuda.
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2014 May 07
5
acelerar conexión con RODBC
Hola a todos...estoy usando MariaDb como base de datos (similares caracteristicas a MySQL), y la conexión entre R y esta con RODBC.¿Existe alguna forma de incrementar la conexión para carga de datos ya que son largos, ejm: 3000 registros en 1 minuto...Si conocen de esto o me pueden sugerir alternativas, estaré agradecido.
Patricio.
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2012 Oct 19
2
Axis Breaks with ggplot2
R-help -
I'm trying to create axis breaks similar to this :
http://www.r-bloggers.com/wp-content/uploads/2010/08/bar-chart-natural-axis-split1.png
.
Is there a way to do this in R? Here's my code thus far:
structure(list(condition = structure(c(2L, 1L, 3L), .Label = c("con",
"exp", "unedit"), class = "factor"), trial.avg = c(4.04583333333333,
2010 Sep 30
2
GUI Red-R
Que tal Miguel.Bueno, este es un buen intento para los programas que manejan el denominado "Flujo de conocimiento", que lo que tratan es de ordenar los pasos que intervienen en un proceso (proceso=análisis, reporte, etc.) y la ayuda que brindan los softwares, es que los objetos ya definidos para las distintas tareas.Hay algunos de estos programas: Enterprice guide y miner de SAS,