= Links to external statistics web sites =

== Journals ==

 [[https://www.scimagojr.com/journalrank.php?category=2613]] <<BR>> Statistical Journals including RSS

== Glossary of statistical terms ==

 [[https://conceptstew.co.uk/resources/statistics-glossary/]] <<BR>> ''Definitions of statistics jargon''

== Issues ==


 [[http://www.lrdc.pitt.edu/Schunn/SSB/index.html]] <<BR>> Statistical Significance Bars (Schunn)
  
[[https://www.researchgate.net/publication/265924276_Modeling_and_Interpreting_Interactions_in_Multiple_Regression]] <<BR>> Modeling and Interpreting Interactions in Multiple Regression (Donald F. Burrill) which be can requested from the author

 [[http://www.creative-wisdom.com/computer/sas/collinear_orthogonalization.htm]] <<BR>> Multi-collinearity Variance Inflation and Orthogonalization in Regression (Dr. Chong-ho (Alex) Yu)

 [[http://archneur.ama-assn.org/issues/v58n5/ffull/nlt0501-2.html]] <<BR>> The use and abuse of correlation coefficients.  '''This link seems broken (July 2006)''' [[http://archneur.ama-assn.org/cgi/content/extract/58/5/833]] contains a summary of this article

 [[http://vassarstats.net/corr_stats.html]] <<BR>> Confidence Intervals for the correlation coefficient

 [[http://faculty.cas.usf.edu/mbrannick/regression/regma.htm]] <<BR>> Explanation of multiple regression using matrix algebra

 [[http://www.theanalysisfactor.com/]] <<BR>> Karen Grace-Martin covers assumptions and interpretations of many statistical tests (including AN(C)OVAs and random effect models on her website called The Analysis Factor

 [[https://clusterrandomisedtrials.qmul.ac.uk/]] <<BR>> A website has been launched about cluster randomised trials (thanks to Adam Wagner for flagging this site)

 [[https://clusterrandomisedtrials.qmul.ac.uk/current-developments-crt-sw-2018/#]] <<BR>>
Materials from a related conference on cluster randomised trials (thanks to Adam Wagner for flagging this site)


== Software ==

 [[http://www.gnu.org/software/pspp/]] <<BR>> This is a free version of SPSS called PSPP which claims to perform descriptive statistics, T-tests, anova, linear and logistic regression, cluster analysis, factor analysis, non-parametric tests and more. 

 [[https://www.jamovi.org]] <<BR>> A free-to-use spreadsheet front end attaching itself to the R statistical language to enable gui use of some of its functions.

 [[http://www.presidion.com/academic-portal]] <<BR>> Free student registration to look at youtube videos of how to use and interpret all the statistical methods available in SPSS. To access the full site you need to send proof to Presidion who manage SPSS academic licences of 'lecturer' status to presidion e.g. link to a web page with that information, some documentation from the college, email from head of department etc. emma.tine@presidion.com or irene.garcia@presidion.com are contacts (as of February 2015).

 [[https://www.discoveringstatistics.com/]] <<BR>> [[https://www.discoveringstatistics.com/|Andy Field]] has produced some free downloadable lecture notes on a large variety of statistical procedures including AN(C)OVAs, Factor analysis, regression, descriptive statistics and many more in an accessible style with traces of dark humour. Based upon his SPSS, SAS and R statistics 

 [[https://rdrr.io/cran/nlme/]] <<BR>> NLME: Software for mixed-effects models (Pinheiro and Bates)

 [[http://www.octave.org/]] <<BR>> Octave - GNU Matlab-lookalike

 [[http://euclid.psych.yorku.ca/SCS/Online/power/]] <<BR>> Power analysis for ANOVAs

 [[http://www.stat-help.com/spreadsheets.html]] <<BR>> A variety of EXCEL spreadsheet programs. The effect size calculators in the 'Meta-analysis' section are particularly worth a look.

 [[https://archive.org/details/freesoftwarefordos_calc_pepi]] <<BR>> Computer Programs for Epidemiologic Analyses: PEPI v. 4.0 J.H. Abramson and P.M. Gahlinger

 [[https://biostat.app.vumc.org/wiki/Main/PowerSampleSize]] <<BR>> Power analysis for many statistics including Regressions and Survival Analysis (downloadable software by William D. Dupont and Walton D. Plummer, Jr.)

 [[http://www.stat.uiowa.edu/~rlenth/Power/]] <<BR>> More power calculator Java applets (Russell Lenth)

{{{
#!bibtex abstract=on usekeys=on keywords=off style=apalike
@article{Lenth2001AmericanStatistician,
  author = {Lenth, R V},
  year = {2001},
  title = {{S}ome {P}ractical {G}uidelines for effective sample size determination.},
  journal = {{T}he American Statistician}, 
  volume = {55},
  number = {3},
  pages = {187-193}}
}}}

 [[https://www.spsstools.net/en/syntax/]] <<BR>> Raynald Levesque's website has various SPSS syntax and macros mainly by him.

 [[https://www.gnu.org/software/pspp/]] <<BR>> Free open-source version of SPSS that performs descriptives, t-tests, regressions and non-parametric tests. There is a user manual available from [[https://www.gnu.org/software/pspp/manual/]] <<BR>>

 [[https://spsstools.net/en/resources/links/personal-sites/dirk-enzmanns-statistical-software/]] <<BR>> Dirk Enzmann has written a collection of stand-alone programs, SPSS, R and EXCEL macros to perform a variety of tasks including comparisons of standardised regression coefficients (stand-alone software) and interaction plots (in EXCEL). 

 [[ https://gsg.uottawa.ca/data/teaching/spss/ProgDataMgmt_20_book.pdf]] <<BR>> Raynald Levesque has co-authored this downloadable SPSS syntax guide. Note that python can only be used  in SPSS Version 20.0 and above.

 [[http://www.john-uebersax.com/stat/index.htm]] <<BR>> Latent Class Analysis (John Uebersax)

 [[https://www.smartpls.com/]] <<BR>> Freeware for performing Partial Least Squares analysis (suggested by various researchers)

 [[http://www.graphpad.com/quickcalcs/grubbs2.cfm]] <<BR>> Outlier detection tool using Grubb's Test

 [[https://zzz.bwh.harvard.edu/gpc/]] <<BR>> Genetic Power Calculator (Sean Purcell and P C Sham) 

 [[http://www.bristol.ac.uk/cmm/research/ebooks/]] <<BR>> Stat-JR v1.0.5 is the first release of Stat-JR to include a suite of statistical analysis assistants (SAAs). The scope of the SAAs ranges from modelling a simple linear regression through to a combined SAA that will cope with: different response types (normal, binomial, Poisson and negative-binomial); multiple levels/classifications at which random effects can occur in both a nested or crossed way; random intercepts and slopes and interaction terms. Many of the SAAs use MLwiN (both IGLS and MCMC estimation) as the engine underneath the electronic book thereby joining up  Stat-JR and MLwiN software packages that we distribute together. This software is free to academics.

 [[https://www.bristol.ac.uk/cmm/learning/online-course/]] <<BR>> Multilevel analysis course on-line module materials comprising the learning environment for multilevel methodology and applications (LEMMA) from the Centre for Multilevel Modelling using R and other software


{{{
#!bibtex abstract=on usekeys=on keywords=off style=apalike
@article{Purcell2004Bioinformatics,
  author = {Purcell, S and Cherny, S S and Sham, P C},
  year = {2003},
  title = {{G}enetic {P}ower {C}alculator: design of linkage and association genetic mapping studies of complex traits.},
  journal = {{B}ioinformatics}, 
  volume = {19},
  number = {1},
  pages = {149-150}}
}}}

 [[https://rapidminer.com/platform/educational/]] <<BR>> Rapidminer is free to use software for fitting decision tree and machine learning models via a gui to upto 10,000 cases

 [[https://www.knime.com/knime-software/knime-analytics-platform]] <<BR>> knime is also software with a gui interface for fitting machine learning models and a lot besides including linear regression, logistic regression and k-means clustering.

 [[http://www.randomization.com/]] <<BR>> Block Randomization web pages computing blocks of specified sizes featuring random allocation of treatments
 [[https://www.researchgate.net/publication/341803315_Old_Dog_Old_Tricks_Using_SPSS_syntax_to_avoid_the_mouse_trap]] and [[https://surveyresearch.weebly.com/old-dog-old-tricks-using-spss-syntax-to-beat-the-mouse-trap.html]] <<BR>> Tips and tricks in using SPSS syntax by John Hall 

 [[https://goodcalculators.com/statistics-calculators/]] <<BR>> Statistical calculators from the Good Calculators group (feedback is welcomed and can be sent to the group via the webpage)


== Groups ==

 [[http://assess-spss.co.uk]] <<BR>> Details of the SPSS Users' Group


== Stats Help ==

 [[https://www.kcl.ac.uk/mental-health-and-psychological-sciences/bhi-advisory-service]] <<BR>> Kings College London Statistics Advisory Service

 [[http://stats.stackexchange.com/]] <<BR>> Cross Validated R users on-line help list

 [[https://www.r-project.org/mail.html]] <<BR>> A list of R e-mailing lists where help on a range of aspects of R may be sought

 [[ https://stackoverflow.com/questions/tagged/R]] <<BR>> R users forum

 [[ https://archive.cmih.maths.cam.ac.uk/cambridge-imaging-clinic/]] <<BR>> Imaging users Clinic (Cambridge)

 [[https://www.youtube.com/user/patrickkwhite]] <<BR>> Patrick White's introductory YouTube SPSS video tutorials


== Miscellany ==

 [[http://www.workjoke.com/projoke48.htm]] <<BR>> Jokes about statistics and statisticians

 [[http://xkcd.com/795/]] <<BR>> Cartoons about statistics

 [[http://www.youtube.com/watch?v=JS9GmU5hr5w]] <<BR>> The Statz Rap!

 [[http://students.brown.edu/seeing-theory/ ]] <<BR>> 'Seeing theory' - A visual intro to stats

More of the same are [[attachment:jokes.doc|here]]

----

[[CbuStatistics|Return to Statistics main page]]

[[http://www.mrc-cbu.cam.ac.uk/|Return to CBU main page]]

These pages are maintained by [[mailto:ian.nimmo-smith@mrc-cbu.cam.ac.uk|Ian Nimmo-Smith]] and [[mailto:peter.watson@mrc-cbu.cam.ac.uk|Peter Watson]]

~-[Last updated on 7 July 2006]-~