R Under development (unstable) (2026-01-19 r89308 ucrt) -- "Unsuffered Consequences"
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> # testthat setup for SignalY package
> 
> library(testthat)
> library(SignalY)
> 
> test_check("SignalY")

+===========================================================================+
|               SignalY: Detailed Signal Analysis Summary                   |
+===========================================================================+

+-----------------------------------------------------------------------------+
| 1. DATA OVERVIEW                                                           |
+-----------------------------------------------------------------------------+

  Sample size (n): 100 
  Number of predictors (p): 10 
  Standardized: TRUE 
  First-differenced: FALSE 
  NA handling: interpolate 

+-----------------------------------------------------------------------------+
| 2. SPECTRAL DECOMPOSITION                                                  |
+-----------------------------------------------------------------------------+

  WAVELET MULTI-RESOLUTION ANALYSIS
  -------------------------------------
  Filter: la8 
  Levels combined: 3, 4 
  Combined signal variance: 0.3805 

  SIGNAL CHARACTERISTICS
  -------------------------------------
  Smoothness (var of Delta^2Y): 1.4971 
  Interpretation: Highly volatile (noise-dominated) 

+-----------------------------------------------------------------------------+
| 4. PRINCIPAL COMPONENT ANALYSIS                                            |
+-----------------------------------------------------------------------------+

  VARIANCE EXPLAINED
  -------------------------------------
  PC1: 30.1% (cumulative: 30.1%)
  PC2: 26.6% (cumulative: 56.6%)

  ENTROPY ANALYSIS
  -------------------------------------
  PC1 entropy: 0.77 
  Normalized entropy: 0.334 
  Interpretation: Moderately distributed loadings 

  TOP PC1 LOADINGS
  -------------------------------------
   1. V3                   loading =  0.4825
   2. V1                   loading =  0.4795
   3. V2                   loading =  0.4735
   4. V6                   loading =  0.3234
   5. V4                   loading =  0.3103

  BOOTSTRAP SIGNIFICANCE
  -------------------------------------
  Bootstrap replications: N/A 
  Significance level: N/A 
  Significant loadings: N/A

+-----------------------------------------------------------------------------+
| 7. OVERALL SYNTHESIS                                                        |
+-----------------------------------------------------------------------------+

  Highly volatile (noise-dominated). Moderately distributed loadings. 

[ FAIL 0 | WARN 0 | SKIP 3 | PASS 54 ]

══ Skipped tests (3) ═══════════════════════════════════════════════════════════
• HP-GC filter requires MCMC which is slow (1): 'test-signaly.R:119:3'
• {cmdstanr} is not installed (2): 'test-signaly.R:132:3',
  'test-signaly.R:157:3'

[ FAIL 0 | WARN 0 | SKIP 3 | PASS 54 ]
> 
> proc.time()
   user  system elapsed 
   3.18    0.51    3.73