CHANGELOG.md

PLANNED

• simplify tolerance classes to single Tol.Bilateral (like vlangs implementation)
• add Distribution.from_process_capability_index(C_p, C_pk, k) ??
• Monte-Carlo simulation
• Tolerance Optimization Simple Arithmetic, Fig 9-9, 11-7 in McGraw Hill,
• Dimension.from_distribution() (nice to have for montecarlo)
• Add Triangular Distribution
• Stack combined Yield (not for stackup analysis, but combined yield)

0.6.0

• Fix negative distribution
• Separate Dimension and StatisticalDim/Data. (AKA, merge StatisticalDim and Reviewed)
  • Basic Dimension
  • Reviewed Dimension (Reviewed just points at dimension and Distribution/Data)
  • Distribution
  • Requirement (For distribution or distribution data)
  • WC, RSS, MRSS takes all Basic Dimensions
  • SixSigma, MonteCarlo takes all Reviewed Dimensions
  • Spec renamed to Requirement
  • Plots work with new dims

0.5.1 11/15/2024

• move ruff to dev dependency

0.5.0 11/12/2024

• Move WC, RSS, MRSS calculations to separate locations
• is Statistical "@ ± {self.target_process_sigma}σ & k={self.k}" needed?
• fix StackPlot.add_dimension() not returning self
• automatic or user specified plot dist data xbins (currently size=0.1)

0.4.0 11/11/2024

• Fix negative statistical data
• Show Abs. Bounds instead of Rel. Bounds
• uv managed project

0.3.3

• DivisionByZero regression fix in SixSigma analysis

0.3.2

• fix abs_upper and abs_lower for negative nominal dimensions and add tests
• rename process_sigma to target_process_sigma
• deprecate Z_min/Z_max (abs_upper/abs_lower)

0.3.1 Released 9/30/2023

• Fix plotting regression

0.3.0 Released 9/30/2023

• remove self.items in MRSS(), they should just be items
• reorder mean and stdev in C_pk()
• rename upper_rel to rel_upper
• rename "k" to "Skew (k)", "a" to "Sens. (a)", ...
• rename stack.items to stack.dims
• organize analysis calculations with dim.dir() first (in analysis and other locations)
• rename title to name
• give stack a description
• make C_p and C_pk only work on normal distribution with +/-6sigma (or explicitly state they are "6 sigma" values)
• add abs_upper and abs_lower (same as Z_min and Z_max)
• remove distribution from Basic Dimension
• restructure the way distributions are handled
• rename rss_func to rss and make it receive array instead of arbitrary length parameters
• WC: is tol.dir needed on t_wc computation? No
• remove mean, stdev from Statistical Dimension
• make k calculated from nominal and distribution mean
• fix slight error in stack calculations in McGraw Hill Tests
• rename tolerance to tol
• Support to positive bilateral tolerances. Ex. 2 + 0.2 / + 0.1

0.2.0 Released 6/23/2023

0.1.0 Released 5/23/2023

Initial Release