RUready4R
R -- это по-русски
Tuesday, July 7, 2015
Tuesday, January 13, 2015
qualitative or mixed data analysis
LinkedIn даёт пакет для такого анализа.
#Rstats #research My brief survey of R packages for qualitative (or mixed) data analysis. http://qr.ae/6auZw
Javier, I appreciate the suggestion and the link. In my post, I've tried to limit the discussion to R packages that are much more focused on qualitative data analysis than many others. I understand that "lme4" and many other packages contain functionality that deals with qualitative (in a form of categorical) or mixed data, but I was trying to limit the scope of the material for better focus. More importantly, mixed-effects modeling is IMHO inherently quantitative approach. Nevertheless, this is an interesting topic, which I plan to become acquainted more with in the future. Thank you again and feel free to connect!
Check also this package: http://factominer.free.fr/advanced-methods/multiple-factor-analysis.html
Ahmed, I'm aware of "factominer" and some other FA packages. However, I tend to think of them mostly as packages for quantitative data analysis, despite their support for categorical data. Please see my points in the comment for Javier above. Anyway, I appreciate your comment.
#Rstats #research My brief survey of R packages for qualitative (or mixed) data analysis. http://qr.ae/6auZw
May be lme4 will be useful
http://lme4.r-forge.r-project.org/lMMwR/lrgprt.pdf
http://lme4.r-forge.r-project.org/lMMwR/lrgprt.pdf
Ahmed, I'm aware of "factominer" and some other FA packages. However, I tend to think of them mostly as packages for quantitative data analysis, despite their support for categorical data. Please see my points in the comment for Javier above. Anyway, I appreciate your comment.
Thursday, November 20, 2014
Forecasting mortality, fertility, migration and population data
The demography package for R contains functions for various demographic analyses. It provides facilities for demographic statistics, modelling and forecasting. In particular, it implements lifetable calculations; Lee-Carter modelling and variants; functional data analysis of mortality rates, fertility rates, net migration numbers; and stochastic population forecasting.
and more
and more
Sunday, April 7, 2013
Top 10 tips to get started with R
(This article was first published on mages' blog, and kindly contributed to R-bloggers)
Bonus tip
To leave a comment for the author, please follow the link and comment on his blog:mages' blog.
R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX,SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series,ecdf,trading) and more... |
Sunday, March 24, 2013
Saturday, March 2, 2013
log-regression
см. перевод Касьянчука статьи про логистическую регрессию
Tuesday, February 26, 2013
Statistics for the Social Sciences
страничка jfox at mcmaster.ca на кране
с короткими рекомендациями
любопытно, что этому блогу уже больше 2х лет, начал 3 февраля 2011
с короткими рекомендациями
любопытно, что этому блогу уже больше 2х лет, начал 3 февраля 2011
Monday, February 25, 2013
still does not work
Это про Rcmdr
Удалось установить только RStudio, a кроме упомянутого Rcmdra ещё хочу Rattle, который тоже не встаёт :(
вопросы задавал в ЖЖ и
в LinkedIn
ответы есть, но, тем не менее, воз и ныне там, а нужда уже подпирает
устанавливал по оригинальной инструкции, есличо
Удалось установить только RStudio, a кроме упомянутого Rcmdra ещё хочу Rattle, который тоже не встаёт :(
вопросы задавал в ЖЖ и
в LinkedIn
ответы есть, но, тем не менее, воз и ныне там, а нужда уже подпирает
устанавливал по оригинальной инструкции, есличо
Monday, February 11, 2013
Wednesday, January 16, 2013
Thursday, December 13, 2012
meaning forecast
robjhyndman.com пишет про новый R пакет прогнозирования как бе, но пишет следующим образом:
The accuracy function now works with both time series forecasts and cross-sectional forecasts. то-есть, по-руски прогнозирование -- это предвидение по времени, а попе н достансге -- совсем не обязательно и вводит нас (если на демографическом образовании строицо) в мир indirect techniques
The accuracy function now works with both time series forecasts and cross-sectional forecasts. то-есть, по-руски прогнозирование -- это предвидение по времени, а попе н достансге -- совсем не обязательно и вводит нас (если на демографическом образовании строицо) в мир indirect techniques
Wednesday, December 5, 2012
Multivariate regression analysis using categorical explanatory variables
LinkedIN начал новую нитку с этой назвой
Which package is useful to handle categorical variables in a multivariate regression analyisis and where may I find the tutorials? Every information that I find is about quantitative data.
I am currently using a lm function to find the best predictor for a quantitative response variable but I am afraid, it is not the best approach. I also do not want to use dummies.
Which package is useful to handle categorical variables in a multivariate regression analyisis and where may I find the tutorials? Every information that I find is about quantitative data.
I am currently using a lm function to find the best predictor for a quantitative response variable but I am afraid, it is not the best approach. I also do not want to use dummies.
Thursday, October 11, 2012
research vs grants
Rob J Hyndman :
I don’t think telling people what research areas are important is very helpful. The best research comes about when people are curious and passionate, and take a surprisingly different perspective from those who have gone before.
from here
действительно, как раз сейчас пытаюсь ответить на вопросы какбе грантодателей, 1 из х:
Существует ли в стране политика, программа и/или стратегия, направленная на решение вопросов сексуального и репродуктивного здоровья и репродуктивных прав, которая(ые) находится в процессе разработки или исполнения?
ответить надо да/нет
I don’t think telling people what research areas are important is very helpful. The best research comes about when people are curious and passionate, and take a surprisingly different perspective from those who have gone before.
from here
действительно, как раз сейчас пытаюсь ответить на вопросы какбе грантодателей, 1 из х:
Существует ли в стране политика, программа и/или стратегия, направленная на решение вопросов сексуального и репродуктивного здоровья и репродуктивных прав, которая(ые) находится в процессе разработки или исполнения?
ответить надо да/нет
Thursday, April 26, 2012
Tutorials from Universities Around the World
Online tutorials for R programming, Statistics and Graphic
Here is a list of FREE R tutorials hosted in official website of universities around the world. The tutorials are listed in no particular order, actually based on when I have discovered it. They will be categorised soon. Please kindly suggest me other university-hosted online R tutorials by email to me@pairach.com.- University of California at Davis,
Getting Started with the R Data Analysis Package
by Professor Norm Matloff - Clarkson University,
R Tutorial
by Kelly Black - York University,
Getting started with R - University of Waterloo
R Tutorial For A WINDOWS Environment (Windows, Unix) - University of California at Los Angles, UCLA,
Resources to help you learn and use R - University of California at Riverside.
Programming in R - University of Illinois,
A Brief Introduction to R - University of Texas at Austin,
R Tutorial Videos
by Brandon K. Vaughn - University of California at Berkeley,
An Introduction to R (PDF)
by Phil Spector - University of California at Santa Babara,
R Programming Resource Centre
by National Center for Ecological Analysis and Synthesis - Chiang Mai University,
Econometrics with R (in Thai)
by Pairach Piboonrungroj. - University of Carnegie Mellon,
A Tutorial: Some Fundamentals of R.
by Bruce E. Trumbo - University of Illinois State,
R Tutorial.
by Dong-Yun Kim - University of MacMaster,
Introduction to the R Statistical Computing Environment.
by John Fox. - University of Princeton,
Introducing R.
by Germán Rodríguez - University of Amsterdam,
How to draw graphs with R, [Graphics]
by A.M. (Angelos-Miltiadis) Krypotos - University of North Texas,
Do it yourself – Introduction to R [Intro] - University of Warwick,
R programming page [Biosciences: Molecular Organisation and Assembly in Cells]
by Peter Cock. - University of Illinois at Urbana-Champaign
R tutorial for Applied Econometrics
by Prof. Roger Koenker
- Coastal Carolina University
R tutorials [General]
by William B. King - University of Colorado Denver
R Tutorial [General]
by Stephanie Santorico and Mark Shin - Stanford School of Medicine (Biomedical Informatics)
R Tutorial [VDO on Introduction + Translational Bioinformatics] - Harding University
Producing Simple Graphs with R [basic graphic e.g., line, bar, hist, line]
by Frank McCown - University of Kentucky, Department of Statistics
Use Software R to do Survival Analysis and Simulation [pdf]
by Mai Zhou
Sunday, December 18, 2011
Sunday, November 27, 2011
comparing R, Matlab, SAS, STATA, SPSS
The following table compares the standard procedures of the five packages in detail. By "standard" I mean built-in or readily available from the official or widely known and reliable public web-sites.
TYPE OF STATISTICAL ANALYSIS | R | MATLAB | SAS | STATA | SPSS |
Nonparametric Tests | Yes | Yes | Yes | Yes | Yes |
T-test | Yes | Yes | Yes | Yes | Yes |
ANOVA & MANOVA | Yes | Yes | Yes | Yes | Yes |
ANCOVA & MANCOVA | Yes | Yes | Yes | Yes | Yes |
Linear Regression | Yes | Yes | Yes | Yes | Yes |
Generalized Least Squares | Yes | Yes | Yes | Yes | Yes |
Ridge Regression | Yes | Yes | Yes | ||
Lasso | Yes | Yes | Experimental | ||
Generalized Linear Models | Yes | Yes | Yes | Yes | Yes |
Mixed Effects Models | Yes | Yes | Yes | Yes | Yes |
Logistic Regression | Yes | Yes | Yes | Yes | Yes |
Nonlinear Regression | Yes | Yes | Yes | ||
Discriminant Analysis | Yes | Yes | Yes | Yes | Yes |
Nearest Neighbor | Yes | Yes | Yes | Yes | |
Factor & Principal Components Analysis | Yes | Yes | Yes | Yes | Yes |
Copula Models | Yes | Yes | Experimental | ||
Cross-Validation | Yes | Yes | Yes | ||
Bayesian Statistics | Yes | Yes | Limited | ||
Monte Carlo, Classic Methods | Yes | Yes | Yes | Yes | Limited |
Markov Chain Monte Carlo | Yes | Yes | Yes | ||
Bootstrap & Jackknife | Yes | Yes | Yes | Yes | |
EM Algorithm | Yes | Yes | Yes | ||
Missing Data Imputation | Yes | Yes | Yes | Yes | Yes |
Outlier Diagnostics | Yes | Yes | Yes | Yes | Yes |
Robust Estimation | Yes | Yes | Yes | Yes | |
Longitudinal (Panel) Data | Yes | Yes | Yes | Yes | |
Survival Analysis | Yes | Yes | Yes | Yes | Yes |
Path Analysis | Yes | Yes | Yes | ||
Propensity Score Matching | Yes | Yes | Limited | ||
Stratified Samples (Survey Data) | Yes | Yes | Yes | Yes | Yes |
Experimental Design | Yes | Yes | |||
Quality Control | Yes | Yes | Yes | Yes | |
Reliability Theory | Yes | Yes | Yes | Yes | Yes |
Univariate Time Series | Yes | Yes | Yes | Yes | Limited |
Multivariate Time Series | Yes | Yes | Yes | Yes | |
Markov Chains | Yes | Yes | |||
Hidden Markov Models | Yes | Yes | |||
Stochastic Volatility Models | Yes | Yes | Limited | Limited | Limited |
Diffusions | Yes | Yes | |||
Counting Processes | Yes | Yes | Yes | ||
Filtering | Yes | Yes | Limited | Limited | |
Instrumental Variables | Yes | Yes | Yes | Yes | |
Simultaneous Equations | Yes | Yes | Yes | Yes | |
Splines | Yes | Yes | Yes | ||
Nonparametric Smoothing Methods | Yes | Yes | Yes | Yes | |
Extreme Value Theory | Yes | Yes | |||
Variance Stabilization | Yes | Yes | |||
Cluster Analysis | Yes | Yes | Yes | Yes | Yes |
Neural Networks | Yes | Yes | Yes | Limited | |
Classification & Regression Trees | Yes | Yes | Yes | Limited | |
Boosting Classification & Regression Trees | Yes | Yes | |||
Random Forests | Yes | Yes | |||
Support Vector Machines | Yes | Yes | |||
Signal Processing | Yes | Yes | |||
Wavelet Analysis | Yes | Yes | Yes | ||
ROC Curves | Yes | Yes | Yes | Yes | Yes |
Optimization | Yes | Yes | Yes |
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