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PMean Home About Categories Tags Welcome to my new website. I am trying to consolidate pages written from 1999 onward. It is a work in progress, so please be patient. This page is _index.Rmarkdown on the blogdown website. 2024/12/31 Pages written in 2024 2024/03/29 JBI Manual for Evidence Synthesis 2024/03/25 R Inferno 2024/03/23 Biography for 2024 talk 2024/03/23 Encoding example in R 2024/03/22 Finding customers webinar 2024/03/20 Security policies at my job 2024/02/02 Final”.doc 2024/01/25 A review of spline function procedures 2024/01/18 The Art of LaTeX 2024/01/03 Distribution-free Bayesian Analysis 2024/01/03 The parsimony principle… 2024/01/03 With four parameters… 2023/12/31 Pages written in 2023 2023/12/11 Suggestions for topics on a methodology paper 2023/12/07 Finding good research examples 2023/12/06 The best reasons to run a pilot study 2023/12/05 What is a partial correlation? 2023/11/08 Arrow R Package 2023/11/08 Joining Posit’s Polyglot Data Science Mission 2023/11/08 Standardized survival functions 2023/11/06 Documenting a sample size justification 2023/11/03 ggplot2: Elegant Graphics for Data Analysis (3e) 2023/11/01 The Not So Short Introduction to LaTeX 2023/10/31 McNemar’s test 2023/10/17 Illustration of the rule of 16 2023/10/03 Using R to automate file uploads 2023/09/28 Key data privacy references 2023/09/28 UM system resources for generative AI 2023/09/12 Too many colors spoil the graph 2023/09/06 Information for a new research grant 2023/09/02 Using a linear Taylor series approximation to estimate rounding error 2023/08/31 Introduction to Data Technologies 2023/08/30 Displaying SPSS syntax commands 2023/08/19 A few details about myself 2023/08/03 How scientists work to correct the record when there is an error in a paper 2023/07/28 Modern Data Science with R 2023/07/22 Reshaping longitudinal data in SAS 2023/07/14 Primer on Python for R Users 2023/07/12 Feature Engineering and Selection: A Practical Approach for Predictive Models 2023/07/12 Geocomputation with R 2023/07/12 Swarm plot examples 2023/07/10 Pediatric Pandemic Network 2023/07/06 Another pitch for my graphic novel project 2023/07/05 SAS Webinars 2023/07/05 Transforming healthcare research with technology’s latest capabilities 2023/06/12 Florence Nightingale’s legacy lives on 2023/05/30 Version control basics, creating a personal repository 2023/05/30 Version control basics, updating a local project using git 2023/05/29 Using Git with your SAS projects 2023/05/28 Version control basics, installing a local version of git 2023/05/28 Version control basics, updating a local project using git 2023/05/24 How can I estimate relative risk using GLM for common outcomes in cohort studies 2023/05/24 Resources mentioned during SDSS 2023/05/19 NLM Grants for Scholarly Works in Biomedicine and Health 2023/05/11 Overview of Randomization Tests 2023/05/01 Re-Reading Deming’s 14 Points in the Era of Data Science 2023/05/01 Statistical Literacy: A Study of Confounding 2023/04/20 Starting to think about AI Fairness 2023/04/04 Non-standard evaluation inside functions and loops 2023/03/31 An Introduction to the Harrell"verse" 2023/03/31 Magrittr aliases 2023/03/24 A mixture of normal distributions 2023/03/21 The hedging hyperprior for the normal distribution: unknown mean, unknown precision 2023/03/14 The hedging hyperprior for the normal distribution: known mean, unknown precision 2023/03/04 The modified power prior 2023/02/28 A thank you from BMJ Open 2023/02/28 The hedging hyperprior for the exponential distribution 2023/02/28 The hedging hyperprior for the normal distribution: unknown mean, known precision 2023/02/27 The Imminent Danger of A.I. Is One We’re Not Talking About 2023/02/27 Using work resources on outside consulting 2023/02/21 Early pages on micro-arrays 2023/02/18 Beware the man of one study 2023/02/18 Confirmation bias as a misfire of normal Bayesian reasoning 2023/02/17 A critique of data sharing practices 2023/01/19 Special issue on teaching reproducibility 2023/01/09 Essential Statistics with R and Python 2023/01/05 Download statistics of R packages 2023/01/05 Writing a scope of work 2022/12/31 Pages written in 2022 2022/12/15 My boxplot shows a box but no whiskers 2022/12/14 Troubleshooting tips when you have errors in your SAS code 2022/12/12 Naming your consulting company 2022/12/12 Statement order in SAS programs 2022/12/12 What it means when your variable names are numbers 2022/12/10 Modern books on mathematical statistics 2022/11/30 D3, Data-Driven Documents 2022/11/30 Schoenfeld residuals 2022/11/19 And finally I would like to thank my cat 2022/11/12 Machine learning resources from a seminar by Shuhao Cao 2022/11/12 The POSIX time standard 2022/11/06 Using regular expressions in SAS 2022/11/03 Blogdown equations 2022/10/30 Confusion caused by multiple date formats 2022/10/30 Internal storage format for dates 2022/10/27 Missing value functions 2022/10/23 Missing value hell 2022/09/26 Why weighting for iid data is inefficient 2022/09/08 Recommendation for the oral presentation at a thesis defense 2022/08/26 How can cloud computing help improve equity in the classroom and data science research 2022/08/26 OpenIntro datasets 2022/08/23 Recommendations for qualitative research in five categories 2022/07/13 List of datasets for machine-learning research 2022/07/06 Different parameterizations for one factor ANOVA 2022/07/04 A simple visual alternative to all pairwise comparisons 2022/07/04 Dunnett’s test 2022/06/29 Git cartoon from xkcd 2022/06/29 Scientific American article on the bootstrap 2022/06/29 Scientific American article on the bootstrap 2022/06/21 Interesting links from the UseR 2022 conference 2022/06/20 Selecting a Data Repository 2022/06/13 A Taste of Observable 2022/06/13 With Quarto Coming, is R Markdown Going Away? No. 2022/06/11 Zoom security options 2022/06/10 Behind GitHub’s new authentication token formats 2022/06/08 Behind GitHub’s new authentication token formats 2022/06/07 Deploy Now 2022/06/07 Understanding Random Forest 2022/06/01 Library Research Tutorials 2022/06/01 Testing d3 2022/05/28 Definition, Adverse event 2022/05/28 Definition, Adverse reaction 2022/05/28 Definition, Alpha 2022/05/28 Definition, Beta 2022/05/28 Definition, Binomial distribution 2022/05/28 Definition, Binomial mean 2022/05/28 Definition, Binomial probability 2022/05/28 Definition, Binomial probability 2022/05/28 Definition, Boxplot 2022/05/28 Definition, Case-control study 2022/05/28 Definition, Categorical data 2022/05/28 Definition, Cohort study 2022/05/28 Definition, Common cause variation 2022/05/28 Definition, Conditional probability 2022/05/28 Definition, Continuous data 2022/05/28 Definition, Control chart 2022/05/28 Definition, Convenience sample 2022/05/28 Definition, Correlation coefficient 2022/05/28 Definition, Cross sectional study 2022/05/28 Definition, Crossover study 2022/05/28 Definition, Decision rule 2022/05/28 Definition, Dependent variable 2022/05/28 Definition, Descriptive statistics 2022/05/28 Definition, Descriptive study 2022/05/28 Definition, Diagnostic test 2022/05/28 Definition, Entropy 2022/05/28 Definition, Experimental design 2022/05/28 Definition, Fagan nomogram 2022/05/28 Definition, Geometric mean 2022/05/28 Definition, Independence 2022/05/28 Definition, Independent variable 2022/05/28 Definition, Inferential statistics 2022/05/28 Definition, Interquartile range 2022/05/28 Definition, Interval data 2022/05/28 Definition, Kappa 2022/05/28 Definition, Likelihood ratio 2022/05/28 Definition, Longitudinal study 2022/05/28 Definition, Mann-Whitney-Wilcoxon test 2022/05/28 Definition, Mean 2022/05/28 Definition, Median 2022/05/28 Definition, Mode 2022/05/28 Definition, Mosaic plot 2022/05/28 Definition, Negative predictive value 2022/05/28 Definition, Nominal data 2022/05/28 Definition, Normal distribution 2022/05/28 Definition, Observational study 2022/05/28 Definition, Odds 2022/05/28 Definition, Odds ratio 2022/05/28...