NEWS

---

SixSigma 0.11.0 (2023-04-08)

• Add colours to .ss.prepCanvas (#16 @k-tatgenhorst)

• Fix deprecated ..density.. issue in ggplot2

• Add unit testing (#15 @paulamarv8)

• Add codecov

• Add urls to DESCRIPTION

• Stick News.md to tidyverse style guide

• Improve pkgdown doc

SixSigma 0.10.3 (2021-08-20)

• Fix more moved urls in documentation

SixSigma 0.10.2

• Fix moved urls in documentation (.rd files)

• Fix example of ss.heli() (avoid generate pdf on checks)

SixSigma 0.10.1

• Fix moved urls in documentation

SixSigma 0.10.0

• Fix ss.rr() issue on x-bar subgraph (#9).

• ss.rr() gains an argument signifstars that avoids overwriting the global option. FALSE by default. (@Yoshinobu-Ishizaki, #10).

• NEWS -> NEWS.md

• Documentation with pkgdown at http://emilopezcano.github.io/SixSigma/

SixSigma 0.9-58

• Remove dependency on the qcc package, only used in examples.

• Update documentation

• Fix testing issues

SixSigma 0.9-57

• Fix bug on ss.rr() when no variation, with thanks to Gilles Chassat.

SixSigma 0.9-56

• Fix bug on ss.cc() when plotting MR control chart, with thanks to Jl Z.

SixSigma 0.9-55

• ss.rr() gains a print_plot argument.

SixSigma 0.9-54

• Allow nested designs in R&R Gage studies (ss.rr)

SixSigma 0.9-53

• Add option f.colours to ss.study.ca

SixSigma 0.9-52 (2018-04-15)

• Fix bug on computation of Z_lt in ss.ca().

• Improve graphical output of ss.study.ca(): remove "NA" strings.

SixSigma 0.9-5

• Include ISBNs in the DESCRIPTION file.

SixSigma 0.9-4 (2017-03-13)

• Avoid rounding of variance component to zero in ss.rr().

• Correct %Tolerance column in ss.rr().

• Show %Tolerance in the output of ss.rr().

• Fix reference in the package manual.

SixSigma 0.9-3 (2016-03-25)

• Improvements in ss.rr(): allow arguments errorTerm and alphaLim; changes in computations for compliance with AIAG MSA.

• By default, error term in ANOVA table of ss.rr() is interaction, so results with the default values may differ from the ones obtained in previous versions.

• Default value of sigma in ss.rr() is 6 instead of 5.15.

• Control limits of the range control chart in ss.rr() are now correctly computed.

• Add profiles examples to package help file.

SixSigma 0.9-2 (2016-02-05)

• Fix all issues and warnings with ggplot2.

SixSigma 0.9-1

• ss.study.ca(): fix issue and warning with ggplot2.

• ss.rr(): allow character strings as input.

SixSigma 0.9-0 (2015-11-10)

• Functions for monitoring non-linear profiles.

• Data sets for the example in the book "Quality Control with R".

• Some bug fixes.

SixSigma 0.8-2

• Fixed hard-coded axis limits and positions in ss.study.ca().

• CRAN policy fixes.

SixSigma 0.8-1 (2014-03-07)

• Fixed NOTES not accepted by CRAN CHECK.

SixSigma 0.8-0

• ss.rr() now allows one single appraiser.

• ss.rr() now accepts the sigma level and tolerance. Thanks Kevin C Limburg for suggesting and contributing with the code.

• Adapted DESCRIPTION and NAMESPACE file to CRAN policies.

• Removed welcome messages when loading package.

SixSigma 0.7-2

• Fixed bug on ss.cc when passing climits argument

SixSigma 0.7-1

• Fixed roxygen code to allow example(SixSigma) to work

SixSigma 0.7-0 (2012-11-30)

• New ss.cc() for control charts (currently supporting moving-range control chart).

• roxygen2 documentation.

• Updated URL in DESCRIPTION.

• Added compatibility with R-2.14.2.

• Fixed Encoding field in DESCRIPTION.

SixSigma 0.6.3 (2012-09-05)

• Fixed encoding field in DESCRIPTION.

• ggplot2 0.9.2 compatibility implemented.

SixSigma 0.6.2 (2012-08-18)

• Bug fixed in ss.lfa() (thanks to Sanjay Shinde for reporting).

• ggplot2 0.9.2 compatibility update.

• NEWS file format fixed.

• Code tests implemented for ss.lfa() .

SixSigma 0.6.1 (2012-07-07)

• New dataset ss.data.batteries.

• New and updated references in help files.

• ss.lfa() now allows smaller-the-better and larger-the-better CTQs, besides nominal-the-best.

SixSigma 0.6.0 (2012-03-01)

• New datasets (ss.data.doe1, ss.data.doe2, ss.data.pb1, ss.data.pb2, ss.data.pb3, ss.data.pb4) for running examples in book "Six Sigma with R".

• Minor modifications for ggplot2 0.9.0 compatibility

SixSigma 0.5.0 (2012-01-04)

• Improvements to ss.ci function: density line, normal qq-plot, warnings when normality test fails.

• Improvements to capability analysis functions (ss.stuty.ca, ss.cp, ss.cpk), warnings and bug corrections.

• New function ss.cc.getc4 to compute constant c4 for the unbiased estimator of the standard deviation.

• New functions ss.cc.getd2 and ss.cc.getd3 to compute mean and variance of the relative range distribution (R/sigma)

• New dataframes ss.data.pc, ss.data.pc.big and ss.data.pc.r

• New dataframe ss.data.strings

• Now ss.rr function uses the new functions ss.cc.getd2 and ss.cc.getd3 to calculate control limits.