combinIT

Description

There are several non-functional-form-based interaction tests for testing interaction in unreplicated two-way layouts. However, no single test can detect all patterns of possible interaction and the tests are sensitive to a particular pattern of interaction. This package combines six non-functional-form-based interaction tests for testing additivity. These six tests were proposed by Boik (1993) <doi:10.1080/02664769300000004>, Piepho (1994), Kharrati-Kopaei and Sadooghi-Alvandi (2007) <doi:10.1080/03610920701386851>, Franck et al. (2013) <doi:10.1016/j.csda.2013.05.002>, Malik et al. (2016) <doi:10.1080/03610918.2013.870196> and Kharrati-Kopaei and Miller (2016) <doi:10.1080/00949655.2015.1057821>. The p-values of these six tests are combined by Bonferroni, Sidak, Jacobi polynomial expansion, and the Gaussian copula methods to provide researchers with a testing approach which leverages many existing methods to detect disparate forms of non-additivity. This package is based on the following published paper: Shenavari and Kharrati-Kopaei (2018) "A Method for Testing Additivity in Unreplicated Two-Way Layouts Based on Combining Multiple Interaction Tests". In addition, several sentences in help files or descriptions were copied from that paper.

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CRAN Check Status

Running ‘testthat.R’ [8s/9s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > library(testthat)
  > library(combinIT)
  > 
  > test_check("combinIT")
  Saving _problems/test-CI_test-6.R
  [ FAIL 1 | WARN 0 | SKIP 0 | PASS 16 ]
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Failure ('test-CI_test.R:6:3'): CI_test works ───────────────────────────────
  Expected `x$KKSA_pvalue < 0.05` to be TRUE.
  Differences:
  `actual`:   FALSE
  `expected`: TRUE 
  
  
  [ FAIL 1 | WARN 0 | SKIP 0 | PASS 16 ]
  Error:
  ! Test failures.
  Execution halted

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Running ‘testthat.R’ [8s/9s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > library(testthat)
  > library(combinIT)
  > 
  > test_check("combinIT")
  Saving _problems/test-CI_test-6.R
  [ FAIL 1 | WARN 0 | SKIP 0 | PASS 16 ]
  

...[truncated]...
.R:6:3'): CI_test works ───────────────────────────────
  Expected `x$KKSA_pvalue < 0.05` to be TRUE.
  Differences:
  `actual`:   FALSE
  `expected`: TRUE 
  
  
  [ FAIL 1 | WARN 0 | SKIP 0 | PASS 16 ]
  Error:
  ! Test failures.
  Execution halted

Running 'testthat.R' [5s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(combinIT)
  > 
  > test_check("combinIT")
  Saving _problems/test-CI_test-8.R
  Saving _problems/test-CI_test-9.R
  Saving _p
...[truncated]...
_test.R:10:3'): CI_test works ──────────────────────────────
  Expected `x$Jacobi < 0.05` to be TRUE.
  Differences:
  `actual`:   FALSE
  `expected`: TRUE 
  
  
  [ FAIL 3 | WARN 0 | SKIP 0 | PASS 14 ]
  Error:
  ! Test failures.
  Execution halted

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