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Statistical Methods and Computing Problems | Solutions | Data Manipulation Problems

These problems are intended to help staff and faculty improve their statistical computing (in R and other software) and analysis skills. Solutions should be e-mailed to f.harrell@vanderbilt.edu, and later some solutions will be posted. Ideas for problems are welcomed.

Statisticians in the Department of Biostatistics get together, typically weekly, to work together on these problems. Once per month Dr Harrell joins the group to go over solutions.

Next Meeting:

Assignments
Problem Assigned Due
1 10 May 2004 28 May 2004
2 4 June 2004 12 Jul 2004
3 27 Oct 2004 17 Nov 2004

Suggestions for future Puzzler topics:
  • Puzzler 4 - Data Manipulation in R (including dealing with date variables)
  • Puzzler 5 - Data Simulation in R (data distribution and testing)

Suggestions for future meeting topics:
  • Graphics
  • How to validate a lab test?
  • Bayesian Statistics

Future meetings:
  • Thursday January 20: Selecting the Proper Statistical Test/Method; Dan Byrne
  • Thursday January 27: CANCELLED DUE TO PRIOR ENGAGEMENT!
  • Thursday February 3: Managing your Workload and Career; Dan Byrne
  • Thursday February 10: Free -- Open to questions/data --> Yuwei's lab data problem
  • Thursday February 17: POSTPONED DUE TO THOMAS LUMLEY'S VISIT AND R PRESENTATIONS (will reschedule Puzzler 3 Solution, Thought Process, and Incorrect Methods; Frank Harrell)
  • Thursday February 24: Venables & Ripley Chapter (Modern Applied Statistics with S-Plus, 4th ed.)
  • Thursday March 3: Free -- Open to questions/data
  • Thursday March 10: Model Building/Shrinkage/Variable Selection; Frank Harrell
  • Thursday March 17: Venables & Ripley Chapter
  • Thursday March 24: Venables & Ripley Chapter
  • Thursday March 31: Venables & Ripley Chapter
  • Thursday April 7: Free -- Open to questions/data
  • Thursday April 14: Multiple Imputation; Frank Harrell
  • Thursday April 21: Venables & Ripley Chapter
  • Thursday April 28: Venables & Ripley Chapter
  • Thursday May 12: Free -- Open to questions/data
  • Thursday May 19: Boostrapping/Model Validation; Frank Harrell
  • Thursday May 26: Venables & Ripley Chapter
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Topic revision: r15 - 15 Feb 2005, TheresaScott
 

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