Changes in version 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

                 Changes in version 0.10.3 (2021-08-20)                 

  - Fix more moved urls in documentation

                       Changes in version 0.10.2                        

  - Fix moved urls in documentation (.rd files)

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

                       Changes in version 0.10.1                        

  - Fix moved urls in documentation

                       Changes in version 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/

                       Changes in version 0.9-58                        

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

  - Update documentation

  - Fix testing issues

                       Changes in version 0.9-57                        

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

                       Changes in version 0.9-56                        

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

                       Changes in version 0.9-55                        

  - ss.rr() gains a print_plot argument.

                       Changes in version 0.9-54                        

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

                       Changes in version 0.9-53                        

  - Add option f.colours to ss.study.ca

                 Changes in version 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.

                        Changes in version 0.9-5                        

  - Include ISBNs in the DESCRIPTION file.

                 Changes in version 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.

                 Changes in version 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.

                 Changes in version 0.9-2 (2016-02-05)                  

  - Fix all issues and warnings with ggplot2.

                        Changes in version 0.9-1                        

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

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

                 Changes in version 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.

                        Changes in version 0.8-2                        

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

  - CRAN policy fixes.

                 Changes in version 0.8-1 (2014-03-07)                  

  - Fixed NOTES not accepted by CRAN CHECK.

                        Changes in version 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.

                        Changes in version 0.7-2                        

  - Fixed bug on ss.cc when passing climits argument

                        Changes in version 0.7-1                        

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

                 Changes in version 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.

                 Changes in version 0.6.3 (2012-09-05)                  

  - Fixed encoding field in DESCRIPTION.

  - ggplot2 0.9.2 compatibility implemented.

                 Changes in version 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() .

                 Changes in version 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.

                 Changes in version 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

                 Changes in version 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.