Dr. Thomas J. DeWitt
Associate Professor
Department of Wildlife & Fisheries Sciences
Department of Plant Pathology & Microbiology
Texas A&M University
Office tel. (979) 458-1684
E-mail tdewitt@tamu.edu
Map to DeWitt lab/office:
214 WFES (Wildlife, Fisheries and Ecosystem Science Building)
Tools:
Web site for PopTools Excel Add-In
Kernel Density Estimation Excel Add-In: Add-in Help file User's manual
Matrix add-in for Excel, via Leonardo Volpi -- Matrix.mla
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Handout of formulae for the course - Handout with formulae.doc (Word)
Tutorial on basic and matrix operations in Excel - Tutorial - Basic and matrix operations in Excel.xls (Excel)
Read the primer on matrix operations at http://www.unc.edu/~swlt/metricsmatrix.pdf (PDF)
Spreadsheet on random number generation and data distributions - Data distributions.xlsx (Excel 2013 - older versions cannot 'countifs')
Spreadsheet on basics of variance, covariance, and correlation Variance, covariance, correlation.xls (Excel)
Scratch sheet from class on covariance - Scratch sheet from class on covariance (Excel)
Data and assignment on t-test - Data for t-test (one-sample, two sample, paired) (Excel)
Instructor's t-test calculations - Instructor's worked t-test (one-sample, two sample, paired) (Excel)
Reading on WS Gosset - Boland (1986) (PDF)
Scratch sheet from class on t-test - Scratch sheet from class on t-test.xlsx (Excel 2013 - older versions cannot 'countifs')
Review questions - Week 2 Review questions (Word)
Data for ANOVA homework/practice - Data for ANOVA (snake behavior, drosophila sex & lifespan) (Excel)
Instructor's ANOVA assignment - Instructor's worked ANOVA (snake behavior, drosophila sex & lifespan) (Excel)
Reading on RA Fisher - Rao (1992) (PDF)
Notes on items to know - Handout - Stats expectations.doc (Word)
Mantras as of this week - Mantras handout (Word)
Regression - Regression.xls (Excel)
Permutation - Regression - with permutation.xls (Excel)
t-test by regression & multiple regression - t-test by regression & multiple regression (Excel)
Multiple regression with confidence (intervals) - Multiple regression - with confidence intervals (Excel)
Reading on assumptions in stat - Stat assumptions paper (PDF)
Spreadsheet on data rotation - Data rotation (Excel)
Example design matrix (Phylogenetic contrast) - Phylogenetic design matrix (Excel)
Tight MANOVA spreadsheet with permutation - Mosquitofish MANOVA with permutation (Excel)
 
Data for hominin MANOVA - Hominin data for MANOVA assignment (Excel)
Multivariate GLM worksheet - Multivariate GLM with E, H, L and design matrices.xlsx (Excel 2013)
Hominins worked as GLM & MANOVA. Replaces 'Week 6. MANOVA - Hominins.xls' - Instructor's hominin analysis worked as both MANOVA and GLM (Excel)
Updated formulae - Formulae with multivariate equations (Word)
10 steps handout Handout - 10 Step program for biometers(Word)
Schedule your practicum with the instructor
Eigendecomposition tool for PCA and CA analyses - Eigenvalue&vector spreadsheet (Excel)
Eigenvalue calculation (FYI) - Eigenvalue calculation spreadsheet (FYI only) (Excel)
Otter analysis example - Canonical analysis of otter morphometrics (Excel 2013)
Hominins updated with analysis using Matrix.xla, not PopTools - Hominins - with CA analysis - DeWitt worked version.xls Hominins - with CA analysis - DeWitt worked version
PCA updated for Matrix.xla with additions of orthogonal decomp routine for nonsymmetric matrices, a PCA assignment, etc. - PCA with Caley-Hamilton decomposition - Papadopoulos & DeWitt (Excel)
Wrath of Grapes statistical and analytical assignment - Wrath of Grapes exercise (Excel)
Link to update "Week 6. Multivariate GLM - E, H, L and design matrices - DeWitt worked version.xlsx" (but not this update is in Excel 2003 format, so extension is now '.xls' not '.xlxs' - Update with Matrix.xla functionality (Excel)
Week 9
Path analysis example - Path analysis - tadpoles - with permutation (Excel)
Link options to tadpole path analysis publication: doi: 10.1111/j.1558-5646.2008.00343.x or PDF
DFA and it's inverse - Multiple regression vs. DFA (Excel)
Liberated DFA - DFA including quadratic exploration with otters.jmp (JMP)
Liberated DFA borrowed lecture - DFA - quadratic v. linear great lecture file (PDF)
Week 10
Worked 'Wrath of Grapes' - Wrath of Grapes - Instructor worked (Excel - change extension to .xls for Excel 2003)
Worked PCA assignment - PCA with worked example (Excel - change extension to .xls for Excel 2003)
lecture file (PDF)
Community analysis - Community data by PCA, CoA, RDA/CCA (Excel - change extension to .xls for Excel 2003)
Week 11
Instructor worked CCA - Update of CCA with homework worked (Excel - change extension to .xls for Excel 2003)
2-block PLS - 2BPLS with cichlid data (Excel - change extension to .xls for Excel 2003)
3-block PLS - 3BPLS algorithm (Excel)
SVD demo - SVD as illustrated in class today (Excel)
Nov 6 Lecture - Nov 6 Excel Biometry lecture part 1 (MP4)
Nov 6 Lecture - Nov 6 Excel Biometry lecture part 2 (MP4)
Nov 8 Lecture - Nov 8 Excel Biometry lecture part 1 (MP4)
Nov 8 Lecture - Nov 8 Excel Biometry lecture part 2 (MP4)
Week 12
Tuesday, 13 November
3B-PLS, Markov Chain Monte Carlo -3B-PLS MCMC algorithm (Excel - change extension to .xls for Excel 2003)
Thursday, 15 November
Review and lab day - Review questions to examine individually before and collectively on Thursday (Word)
Week 13
Tuesday, 20 November
Kaylee -- "Sampling and population estimates"
Bridget -- "Cluster analyses, esp. K-means"
Thursday, 22 November
Thanksgiving break -- class does not meet
Week 14
Tuesday, 27 November
Roy -- "Model selection and Aikaike's and Bayesian information criteria"
Amanda -- "Phylogenetically independent contrasts"
Thurday, 29 November
Simon -- "Geospatial statistics"
Capstone: Five approaches to statistics - Five approaches to analytics.xlsx (Excel)
Worked versions of past homework assignments:
Week 7. PCA with Caley-Hamilton decomposition - with worked microarray data.xlsx (Excel)
Week 12. 3B-PLS MCMC algorithm - with SA2 extraction.xlsx (Excel)
Week 15
Tuesday, 4 December
Jasmine -- "Robust regression methods"
Review of biplot ray interpretation (in PCA, multivariate regression, and CCA) - Week 15. CCA practice (Excel)
Note: Now is the time to schedule your final practicum
Thursday, 6 December
Reading day -- class does not meet