Displaying 20 results from an estimated 231 matches for "learners".
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learner
2004 Sep 03
2
windowing strategies
Hello to everybody,
Does anyone has implemented a function for evaluating models using windowing
strategies, such as growing window or sliding window ones?
The aim is to evaluate regression models on a time series data. I do not use
cross-validation once data sorted in a radom way does not make sense when
evaluating time series.
Thanks
Joao Moreira
2020 Jan 04
2
A modern object-oriented machine learning framework in R
...en estar, es decir:
library(ranger)
library(mlr3)
Agradeceré cualquier comentario que me
hagáis. Gracias Carlos.
Diego Martín-Oliva.
Geógrafo.
PS. Hoja del libro sobre mlr3, donde estuve buscando los *Learners*
integrados en el paquete.
El vie., 3 ene. 2020 a las 23:42, Carlos Ortega (<cof en qualityexcellence.es>)
escribió:
> Hola Diego,
>
> El problema que estás teniendo es por el hiperparámetro "cp" que has usado.
>
> Ese hiperparámetro es propio del algoritmo de árbo...
2008 Mar 24
2
Commands failing silently?
Hello all:
I have a couple CentOS 4 servers (all up-to-date) that are having strange
command failures. I first noticed this with a perl script that uses lots of
system calls.
Basically, sometimes a command just won't run:
thoth(52) /tmp> ls
thoth(53) /tmp> ls
thoth(54) /tmp> ls
thoth(55) /tmp> ls
learner lost+found/
thoth(56) /tmp> ls
learner lost+found/
thoth(57)
2009 May 06
0
Bridge() and Goto() and dialplan contexts, oh my!
...till on the line. These channels are all
SIP.
====
I want a group of expert callers who can dial in to the system, stay
put, and let other learner callers come to them. In between the
learner callers, I want them to hear hold music. :
exten => 111,1,Goto(Expert_Gateway)
exten => 222,1,Goto(Learners)
[Expert_Gateway]
exten => s,1,Answer
exten => s,2,AGI(authenticate_and_register)
exten => s,3,MusicOnHold()
exten => s,4,Goto(Expert_Gateway,s,3)
exten => s,5,HangUp
exten => h,1,AGI(cleanup_registration)
exten => h,2,HangUp
[Learners]
exten => s,1,Answer
exten => s,...
2005 Oct 27
0
Fw: Example where PPR crashes
Dear all,
I have been doing tests using SVM, random forests and PPR. The data is from a data stream (that is, the data for training and for test is always increasing / changing). With SVM and random forests everything is ok, but with ppr there are situations where it crashes. For the examples I have used I noticed that if one of the variables has just one value (it can happen), it crashes for
2020 Jan 03
2
A modern object-oriented machine learning framework in R
...De forma que, no entiende, no halla,
"classif.ranger". Lo cual no ocurre con "classif.rpart". Si bien es el que
usa en el ejemplo de CRAN. No veo dónde está el problema. La librería
"ranger" carga perfectamente, he consultado
*https://mlr3book.mlr-org.com/list-learners.html
<https://mlr3book.mlr-org.com/list-learners.html>*, y es una de las
posibilidades.
La ayuda de lrn(), con la que cuento cuando
hago help("lrn"), en mi opinión no es precisa, y no se trata de que esté en
inglés, se trata de que no va al grano y, de m...
2012 Nov 19
2
Biologist R learner
I am a Biologist and a beginner, please help me to solve this: please
anyone..its my homework and I dont have a clue abt R yet..
Write a function which does the following tasks:
(a) Calculates minimum and maximum value of a given argument x.
(b) If x is positive, some new vector gets the value of TRUE, and FALSE
otherwise.
(c) Creates a vector where the i:th and (i-1):th values of x are always
2012 Nov 07
2
New Learner
Hi Experts,
As i am a new in this forum, let me introduce myself:- i am
Debaranjan, from India, Assam.
I have heard many things about R and its statistical Magic
feature. i am really have nothing knowledge about R language nor have
ever used before. i am only a nursery in R. please help me in learning
R.
I have gone through many study material for R but have gain
nothing
2011 Mar 23
1
R helps win competitions
DeaR ComRades,
This is a quote from a News article in Science's 11-February issue, about competitions to model data:
"For Chris Raimondi, a search-engine expert based in Baltimore, Maryland, and winner of the HIV-treatment competition, the Kaggle contest motivated him to hone his skills in a newly learned computer language called R, which he used to encode the winning data model.
2010 Nov 08
5
How to plot a normal distribution curve and a shaded tail with alpha?
I want to create a graph to express the idea of the area under a pdf curve,
like
http://r.789695.n4.nabble.com/file/n3032194/w7295e04.jpg
Thank you for any help.
-----
A R learner.
--
View this message in context: http://r.789695.n4.nabble.com/How-to-plot-a-normal-distribution-curve-and-a-shaded-tail-with-alpha-tp3032194p3032194.html
Sent from the R help mailing list archive at Nabble.com.
2007 Jul 11
2
RWeka control parameters classifiers interface
Hello,
I have some trouble in achieving the desired parametrisation
for the weka classifier functions, using the package RWeka.
The problem is, that the functions
result=classifier(formula, data, subset, na.action, control = Weka_control(mycontrol))
do not seem to be manipulated by the mycontrol- arguments
Perhaps this should be resepected via the handlers- argument ,
but the
2006 Mar 10
10
Textmate Rails Plugin Cheat Sheet
I''m a slow learner when it come to shortcuts and i got real tired
looking up Textmate''s Rails snippets & commands in the context menu.
So i fired up trusty OmniGraffle and quickly created a little Cheat
Sheet for all default snippets/macros/commands in Textmate''s current
Rails Bundle. Certainly helped me to remember these quickly. So, if
you''re
2010 Aug 10
6
How to invert a list ?
Dear list,
I have a list, as follows :
a <- 5
names(a) <- "a"
b <- 9
names(b) <- "b"
c <- 15
names(c) <- "c"
x <- list("i" = a, "j" = b, "j" = c)
I want to invert the list, like this :
$a
i
5
$b
j k
9 15
I do not find a clean solution.
Could anyone give me elegant ideas ?
Thanks in advance,
Carlos
2012 Mar 02
0
[LLVMdev] How to use 'opt' command?
Hi Sarah,
I believe opt takes the bytecode file (.bc) not the human readable form, but
i am just a learner...
Sam.
sarath chandra-5 wrote:
>
> Hi all,
>
> How to print the analysis results using 'opt' command?
>
> I tried using the below command for my *module.ll* file
>
> *opt -analyze -memdep module.ll*
> *
> *
> But it's printing
>
>
2017 Dec 01
2
R vs PYTHON vs SAS vs SPSS?
I am a mature learner; 3 masters
some doctoral work ? statistics for social sciences; psychological statistics ?
worked in spss and sas 2005 ? 2006
now have forgotten ; relearning
my question is this can I do everything in R and Python and SAS studio
that I did in SPSS and the paid variation of SAS we used in doctoral statistics class?
Can I do in Stat in R or Python or SAS studio
everything I
2010 Feb 02
0
Major update: mboost 2.0-0 released
...to the user-interface where
necessary. Please consult the manual and the list of CHANGES below.
The package 'mboost' (Model-based Boosting) implements boosting for
optimizing general risk functions utilizing component-wise (penalized)
least squares estimates or regression trees as base-learners for fitting
generalized linear, additive and interaction models to potentially
high-dimensional data.
A big variety of models can be investigated using 'mboost' including
survival models, expectile regression models, ordinal regression models
as well as standard models such as simple l...
2010 Feb 02
0
Major update: mboost 2.0-0 released
...to the user-interface where
necessary. Please consult the manual and the list of CHANGES below.
The package 'mboost' (Model-based Boosting) implements boosting for
optimizing general risk functions utilizing component-wise (penalized)
least squares estimates or regression trees as base-learners for fitting
generalized linear, additive and interaction models to potentially
high-dimensional data.
A big variety of models can be investigated using 'mboost' including
survival models, expectile regression models, ordinal regression models
as well as standard models such as simple l...
2016 Dec 20
2
Request: Increasing MAX_NUM_DLLS in Rdynload.c
Thanks Henrik this is very helpful! I will try this out on our tests and
see if gcDLLs() has a positive effect.
mlr currently has tests broken down by learner type such as classification,
regression, forecasting, clustering, etc.. There are 83 classifiers alone
so even when loading and unloading across learner types we can still hit
the MAX_NUM_DLLS error, meaning we'll have to break them
2010 Jul 28
2
Out-of-sample predictions with boosting model
Hi UseRs -
I am new to R, and could use some help making out-of-sample predictions
using a boosting model (the mboost command). The issue is complicated by the
fact that I have panel data (time by country), and am estimating the model
separately for each country. FYI, this is monthly data and I have 1986m1 -
2009m12 for 9 countries.
To give you a flavor of what I am doing, here is a simple
2011 Aug 19
2
Auto key legend does not match plot
Dear R-help members. I am an 'R-learner' (about 6 hours so far) using the
lattice library to create a ranked dotplot and am colour coding the dots by
a variable called "Commodity". However when i use autokey to make a legend
the size (cex) and symbol (pch) do not match what is on the dotplot.
Code is below and image attached
library("lattice")
Cal_dat <-