rcurl | Tumblr

rcurl | Tumblr


webpage scraping
example !!!!! postForm ,
basicTextReader

R, SPSS, Excel

migrating form spss, excel to R

http://www.r-bloggers.com/migrating-from-spssexcel-to-r/

R, reshaping

reshape
reshape2

melt
cast

plyr

---- cf check if this possible in R, cf SPSS
 reshape - hadley wickham
http://had.co.nz/reshape/introduction.pdf
 http://www.jstatsoft.org/v21/i12/paper

reshape2
http://cran.r-project.org/web/packages/reshape2/reshape2.pdf

pivot tables in R
http://www.r-bloggers.com/good-riddance-to-excel-pivot-tables/


http://files.meetup.com/1781511/useR%20Vignette%20-%20Grouping%20%26%20Summarizing%20Data%20in%20R%20-%2020110302.pdf


ddply case study
http://www.slideshare.net/hadley/13-casestudy

http://www.slideshare.net/hadley/18-cleaning

http://www.r-statistics.com/tag/plyr/

http://www.r-bloggers.com/tag/hadley-wickham/

examples
http://www.slideshare.net/jeffreybreen/reshaping-data-in-r


http://www.r-bloggers.com/reshape-package-in-r-long-data-format-to-wide-back-to-long-again/
http://www.r-bloggers.com/migrating-from-spssexcel-to-r-part-3-preparing-your-data/

http://www.statmethods.net/management/reshape.html


http://www.google.sk/search?q=r+reshape2+tutorial&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:sk:official&client=firefox-a


http://cran.r-project.org/web/packages/googleVis/vignettes/googleVis.pdf

lexis longitudinal R

http://www.jstatsoft.org/v38/i05/paper

lexis longitudinal
R class
epidemiology
check

spss for dummies, scripps college

http://www.scrippscollege.edu/campus/it/pdf/spss.pdf

gelman - Bayesian statistics - logistic regression - weak informative priors

video lecture

reproducible research, literate programming

nice resource
http://biostat.mc.vanderbilt.edu/wiki/Main/StatReport

cf Frank Harrell

jeromy anglim question at CV on reproducible research - many useful links
http://stats.stackexchange.com/questions/1980/complete-substantive-examples-of-reproducible-research-using-r

package
makefiles

rreports

projectTemplate
https://github.com/johnmyleswhite/ProjectTemplate
etc

open data
data sharing

http://www.dataists.com/2010/10/whats-the-use-of-sharing-code-nobody-can-read/

Model Validation: Interpreting Residual Plots

includes "idealized plots

bias

homoskedasticidy

visualization - categorical data - SAS - R

Michael Friendly 
http://www.datavis.ca/courses/VCD/

cf vcd package
vcdExtra

CrossValidation1_JDS_May2011.pdf tutorial from interesting website (Objekt application/pdf)

CrossValidation1_JDS_May2011.pdf (Objekt application/pdf)

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regularized logistic regression - andrew gelman

priors11.pdf (Objekt application/pdf)

cf problems of logistic model overfitting /cf iterative optimiztion /, data sparsity, complete separation, multicolinearity in LOGISITIC REGRESSION
- one solution - exclude variables that cause complete separation, multicolinearity etc. - however these variables may be the strongest, and of importance.
- new solution - adding some data into model /priors/, which may improve/stabilize model performance

technical

Harrell cross validation - old doc 1998 logistic.val.pdf (Objekt application/pdf)

logistic.val.pdf (Objekt application/pdf)

Statistical Modeling, Causal Inference, and Social Science

Statistical Modeling, Causal Inference, and Social Science

BLOG by andrew gelman et al.

RSS R Introduction Course

RSS R Introduction Course XXXXXXXXXXXXXXXXXXXXXXXXXXX

What are cross-validation and bootstrapping?

comp.ai.neural-nets FAQ, Part 3 of 7: GeneralizationSection - What are cross-validation and bootstrapping?

Rserve - TCP/IP interface to R - RoSuDa - Lehrstuhl für Rechnerorientierte Statistik und Datenanalyse - Universität Augsburg

Rserve - TCP/IP interface to R - RoSuDa - Lehrstuhl für Rechnerorientierte Statistik und Datenanalyse - Universität Augsburg

Mondrian - Interactive Statistical Data Visualization in JAVA

Mondrian - Interactive Statistical Data Visualization in JAVA

Sweave, R, tutorials

http://www.math.montana.edu/~jimrc/classes/Rseminar/SweaveIntro.html


http://en.wikibooks.org/wiki/R_Programming/Publication_quality_ouput

http://www.jstatsoft.org/v31/c01  - reporttools
http://www.jstatsoft.org/v31/c01/paper



http://dataninja.wordpress.com/2006/02/11/getting-tables-from-r-output/

http://alea.fr.eu.org/pages/intro-R

 STAT-ET - eclipse - sweave - CHECK config
http://www.stanford.edu/~messing/ComputationalSocialScienceWorkflow.html

blog:   Statistics, Graphics, R
http://yihui.name/en/

cf pgfSweave
Lyx (latex in GUI)
knitr

R-Chart: 3 lines of R code to Process a Web Service

R-Chart: 3 lines of R code to Process a Web Service

Bayesian Analysis for the Social Sciences

Bayesian Analysis for the Social Sciences

introduction.pdf (Objekt application/pdf)

introduction.pdf (Objekt application/pdf)

Google Insights and RCurl » Dan Knoepfle's Blog

Google Insights and RCurl » Dan Knoepfle's Blog

How to buy a used car with R (part 2) » Dan Knoepfle's Blog

How to buy a used car with R (part 2) » Dan Knoepfle's Blog

How to buy a used car with R (part 2) » Dan Knoepfle's Blog

How to buy a used car with R (part 2) » Dan Knoepfle's Blog

Latex

Latex

videocast, simple, introduction, by BioinformaticsZen

One R Tip A Day

One R Tip A Day

Computational Resources for Linguistic Research

Computational Resources for Linguistic Research

Tutorials

Tutorials

R, statistics, tutorials, visualisation, plot, xxx

Computational Resources for Linguistic Research

Computational Resources for Linguistic Research

Importing data from an XML file into R - Stack Overflow

Importing data from an XML file into R - Stack Overflow

Templ_slides_Boku_beamer.pdf (Objekt application/pdf)

Templ_slides_Boku_beamer.pdf (Objekt application/pdf)

R Tutorial Series: R Tutorial Series: Graphic Analysis of Regression Assumptions

R Tutorial Series: R Tutorial Series: Graphic Analysis of Regression Assumptions

Normality tests – use with caution

Normality tests – use with caution

Testing for Normality using SPSS when you have only one independent variable.

Testing for Normality using SPSS when you have only one independent variable.

Testing for Normality using SPSS when you have only one independent variable.

Testing for Normality using SPSS when you have only one independent variable.

Applied Linear Regression_pt.pdf (Objekt application/pdf)

Applied Linear Regression_pt.pdf (Objekt application/pdf)

ESC | Congresses | EuroPRevent 2010 | Slides resources

ESC | Congresses | EuroPRevent 2010 | Slides resources

Statistics: Lecture Notes

Statistics: Lecture Notes

Multiple Regression with Categorical Predictor Variables - Text

Multiple Regression with Categorical Predictor Variables - Text

dummy variables, dummy coding, SPSS

Inferential Statistics

Inferential Statistics

statistics textbook and online statistical computation
text based

Bayes probability - YouTube

Bayes probability - YouTube

nice and comprehensible presentations of Bayes theorem without much math.
cf disease probabilities (prevalence) and test characteristics (sensitivity, specificity, false negativity, false positivity)
applied on example

Improving the Readability of Electronic Health Records

Improving the Readability of Electronic Health Records

CCTSI_Informatics_Seminar_Series_DEC_16_2010.asf (Objekt video/x-ms-asf)

CCTSI_Informatics_Seminar_Series_DEC_16_2010.asf (Objekt video/x-ms-asf)

i2b2 - general intro, example of querying by cardiology fellow

Tips on Data Preparation :: Study Design and Biostatistics Center

Tips on Data Preparation :: Study Design and Biostatistics Center

inclusive videocasts

cf why Excel not appropriate for data management
HIPAA considerations etc

Robin Beaumont - Introduction to Clinical Decision Support

Robin Beaumont - Introduction to Clinical Decision Support