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11/15/2024 forsearch version 6.3.0

• Major changes: None

• Moderate changes:

  • Added candprep support function
  • Optimized step 1 of every forsearch_foo function
  • Identified observation set within step 1 as yielding lowest median squared error WITHIN each factor subset
  • Changed to 2-phase procedure in step 2 to ensure all parameters can be estimated at every stage in step 2
  • Added arguments to forsearch_lme to liberalize controls
  • Changed from predict to predict.lme, predict.glm and predict.coxph in xStep1 and xStep2
  • Added vignette on Study Credibility

• Minor changes and bug fixes:

  • Modified showme to limit output for forsearch_lme
  • Added graphs for forsearch_lme
  • Corrected use of deviances in forsearch_glm
  • Removed forsearch_nls for corrections and improvements

7/13/2024 forsearch version 6.2.0

• Major changes: None

• Moderate changes:

  • Revised aStep1 to improve step 1 for _lm
  • Added bStep1 and cStep1 to improve step 1 for _lme and _cph

• Minor changes and bug fixes:

  • Added option to disturb event times slightly to avoid duplicates in forsearch_cph observations
  • Changed message in plotdiag.ANOX2 if proportionality not tested in proportional hazard data
  • Minor text changes to vignettes
  • Corrections to examples to correspond to function changes

6/22/2024 forsearch version 6.1.0

• Major changes: None

• Moderate changes:

  • Enabled models with constructed variables (those that appear in the formula but not in the database)

• Minor changes and bug fixes: None

3/30/2024 forsearch version 6.0.0

• Major changes:

  • Added functions forsearch_nls, eStep1, and eStep2 for nonlinear statistics

• Moderate changes: None

• Minor changes and bug fixes:

  • Added code to function showme for forsearch_nls objects and to function plotdiag.allgraphs for forsearch_nls graphics
  • Modified vignette regarding where we get observations to cover nonlinear models

2/16/2024 forsearch version 5.1.0

• Major changes: None

• Moderate changes:

  • Completely revised flow of forsearch_glm to better accommodate models containing independent variables as factors
  • Added vignette regarding exploration of the search history

• Minor changes and bug fixes:

  • Fixed proportionality test bug (na’s) in plotdiag.ANOX2 for Cox regression
  • Changed use of n.obs.per.level in picksome to be additive
  • Remove unused argument of bStep2
  • Added blind.label to arguments of plotdiag.allgraphs to allow user to request labeling of graph to reflect blinded database

1/13/2024 forsearch version 5.0.0

• Major changes:
  • Completely revised flow of forsearch functions _lm, _lme and _cph to better accommodate models containing independent variables as factors
• Moderate changes:
  • Added vignette describing strategy of the forsearch procedure
  • Added ability to skip test of proportionality in forsearch_cph
• Minor changes and bug fixes:
  • Modified diagnostic printouts for forsearch_cph
  • Removed option in variablelist and in picksome for identifying function
  • Integrated diagnostic printouts of aStep1, aStep2 and bStep2 with those of calling functions
  • Added requirement that forsearch_cph have at least 1 factor variable
  • Fixed bug preventing use of multiple observations in Step 1.
  • Cleaned up examples

11/6/2023 forsearch version 4.2.0

• Major changes: None

• Moderate changes:

  • Added plotdiag.ANOX2 and applied it to proportionality test output of forsearch_cph, and test of null hypothesis in forsearch_lm and forsearch_lme
  • Increased scope of models that can by handled by forsearch_lme by revising forsearch_lme and bStep2. Removed need for bStep1
  • Added vector of Step 1 observation numbers to all forsearch_xxx functions

• Minor changes and bug fixes:

  • Added proportionality test (cox.zph) to forsearch_cph
  • Added test of null hypothesis (anova) to forsearch_lm and forsearch_lme
  • Added proportionality test to showme for forsearch_cph
  • Added null hypothesis test to showme for forsearch_lm and forsearch_lme
  • Correct failure to define response.colnum in forsearch_lme that prevented skip of Step1
  • Changed argument “addline” in plotdiag.Cook to single value default

9/12/2023 forsearch version 4.1.0

• Major changes: None

• Moderate changes: None

• Minor changes and bug fixes:

  • Replaced argument diagnose=T/F with begin.diagnose numeric indicator
    
  • Removed argument diagnose and diagnostic code in several small functions
    
  • Added examples in all forsearch_xxx functions
    
  • Cleaned up documentation wording

8/8/2023 forsearch version 4.0.0

• Major changes:
  • Added function forsearch_cph for Cox proportional hazards
  • Added function cStep2 for step 2 of Cox proportional hazard function
  • Added functions plotdiag.Wald, plotdiag.lrt, and plotdiag.loglik
• Moderate changes:
  • Combined showme, showmegl, and showmelme into showme function
    
  • Added forsearch_cph to showme function
• Minor changes and bug fixes:
  • Correct display of ANOVA structure in forsearch_glm for family=Gamma
  • Correct indexing in aStep1
  • Correct function ID in plotdiag.leverage
  • Set default for addline in plotdiag.s2
  • Added message in variablelist regarding single observations in some factor levels
  • Correct coding error in picksome function

2/17/2023 forsearch version 3.2.0

• Major changes: None

• Moderate changes:

  • Added guidance to prevent linearly dependent X’X matrices in forsearch_glm
  • Added capability of forsearch_glm to handle ANOVA and ANCOVA models

• Minor changes and bug fixes:

  • Correct coding error in picksome function

1/4/2023 forsearch version 3.0.1

• Major changes: None

• Moderate changes: None

• Minor changes and bug fixes:

  • Fixed response column identifier in forsearch_lme, aStep1, aStep2, bStep1 and bStep2
  • Fixed need for handling NaN in certain data for forsearch_glm
    
  • Clarified help for forsearch_glm for two response column numbers

12/14/2022 forsearch version 3.0.0

• Major changes:
  • Rewrote forsearch_lme to clarify code for generation of Steps 1 and 2
  • Extracted Step 1 and Step 2 increases in sample size to separate functions aStep1 and aStep2 from forsearch_lm and forsearch_lme
  • Added functions aStep1 and aStep2 for linear model functions
  • Added functions bStep1 and bStep2 for linear mixed effects models
• Moderate changes:
  • Added plotdiag.all function to create drafts of all applicable graphs
  • Added functions variablelist() and picksome() to subdivide observations into their factor levels
  • Added capability of forsearch_lm, forsearch_glm and forsearch_lme to process factor variables and interactions with regression variables
  • Added capability of forsearch_lm to calculate leverage of observations over subsets
  • Added examples for forsearch_lm, forsearch_glm, and forsearch_lme
• Minor changes and bug fixes:
  • Changed README to add plotdiag.all, variablelist, and picksome functions
  • Changed some plotting functions to allow no fit of a line to the data
  • Added option for all forsearch_xxx functions to blind initial display of data analysis structure, anticipating future developments

4/21/2022 forsearch version 2.3.0

• Major changes: None

• Moderate changes:

  • Correct subgroup selection procedure in forsearch_lme
  • Calculate root mean square of random coefficients instead of the coefficients themselves in forsearch_lme
    
  • Correct plotdiag.params.random to correspond with changed calculation of RMS
  • Add plotdiag.fit3 to plot AIC, BIC, and log likelihood for forsearch_lme objects

• Minor changes and bug fixes:

  • Print summary of assumed analysis in forsearch_lm and in forsearch_lme to permit formulation check
  • Modify README and documentation of functions

3/24/2022 forsearch version 2.2.0

• Moderate changes:
  • Clean up README and help files
  • Modify forsearch_glm to handle observations of 0 or N (binomial)

3/17/2022 forsearch version 2.1.0

• Moderate changes:
  • Correct the omission of README file

3/16/2022 forsearch version 2.0.0

• Major changes:
  • Added forsearch_glm() function
  • Added plotdiag.deviance.residuals() function
  • Added plotdiag.phihatx() function
  • Added plotdiag.AICX() function
  • Added plotdiag.deviances() function
• Moderate changes:
  • Added the collection of t statistics in forsearch_lm() and forsearch_lme() for subsequent plotting
  • Added plotdiag.tstats() function to plot t statistics
  • Added showmegl() function
  • Changed some existing plotdiag functions to accommodate forsearch_glm()
• Minor changes and bug fixes:
  • Added t statistics to list of summary prints in showme() and showmelme()
  • Modified search.history() to account for case when all current observations replaced by new ones
  • Enabled user to enter caption on all graphs
  • Corrected 2nd example in README file
  • Updated README file
  • Removed extra squaring of response in plotdiag.residuals() function

1/27/2022 forsearch version 1.0.0

First version of this package

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.