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What's new on the UCLA ATS Statistical Consulting Group web site

Wednesday, May 27, 2009

What's New in June, 2009?

SAS
  • Code Fragment: Using the predict statement with nlmixed
  • FAQ: How can I do zero-truncated count models using nlmixed?
  • FAQ: Simple linear and nonlinear models using nlmixed
SPSS
  • FAQ: How can I do repeated measures anova with covariates in SPSS?
Stata
  • Code Fragment: Simple linear and nonlinear models using Stata's ml command
  • Code Fragment: CFA using Mata optimize
  • FAQ: How can I compute power for contingency tables in Stata?
  • Code Fragment: Retrospective power analysis for anova
  • FAQ: How can I identify cases used by an estimation command using e(sample)?
Posted by atsstat at 9:35 AM No comments:

Monday, May 11, 2009

What's New in May, 2009?

General
  • FAQ: How do I interpret the sign of the quadratic term in a polynomial regression?
R
  • Code Fragment: How can I read multiple files into R?
SAS
  • Code Fragment: Summary table for multiple regression models
  • FAQ: How can I export my SAS results to an Excel spreadsheet?
  • FAQ: How can I send SAS data/results to specific cells in an Excel spreadsheet?
  • FAQ: How can I do path analysis in SAS?
  • Code Fragment: Summary table for logistic regression models
  • FAQ: How can I include cells with zero counts in proc freq with the list option?
SPSS
  • FAQ: How can I convert string variables data into date variables?
  • Code Fragment: Looping with dates
  • FAQ: How can SPSS help me document my data?

Stata
  • FAQ: How can I convert a multilevel model to a mixed model?
  • FAQ: How can I access information stored after I run a command in Stata (returned results)?
  • FAQ: How can I graph chi-square power curves in Stata?
  • Code Fragment: Fitting a seemingly unrelated regression (sureg) manually
  • FAQ: How can I reshape doubly (or triply) wide data to long?
  • FAQ: How can I fit a random intercept or mixed effects model with heteroskedastic errors?
Posted by atsstat at 9:20 AM 1 comment:
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