NEWS

---

forsearch 6.4.0 (2025-01-07)

• Major changes: None

• Moderate changes:

  • Added vignette on Study Credibility
  • Added arguments to forsearch_nls to liberalize controls
  • Added function logist3 to calculate 3-parameter logistic

• Minor changes and bug fixes:

  • Removed phases in forsearch_nls in favor of sections
  • Returned to use of stats::predict for all forsearch functions
  • Updated all examples

forsearch 6.3.0 (2024-11-16)

• 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

• 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

forsearch 6.2.0 (2024-07-13)

• 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

forsearch 6.1.0 (2024-06-22)

• 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

forsearch 6.0.0 (2024-03-31)

• 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

forsearch 5.1.0 (2024-02-16)

• 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

forsearch 5.0.0 (2024-01-14)

• 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

forsearch 4.2.0 (2023-11-06)

• 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

forsearch 4.1.0 (2023-09-12)

• 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

forsearch 4.0.0 (2023-08-09)

• 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

forsearch 3.2.0 (2023-02-19)

• 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

forsearch 3.0.1 (2023-01-05)

• 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

forsearch 3.0.0 (2022-12-14)

• 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

forsearch 2.3.0 (2022-04-24)

• 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

forsearch 2.2.0 (2022-03-27)

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

forsearch 2.1.0 (2022-03-18)

• Moderate changes:
  • Correct the omission of README file

forsearch 2.0.0 (2022-03-16)

• 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

forsearch 1.0.0 (2022-01-28)

First version of this package