SixSigma 0.9-4
--------------
* Avoid rounding of variance component to zero in ss.rr function
* Correct %Tolerance column in R&R study (ss.rr function)
* Show %Tolerance in the output of the ss.rr function

SixSigma 0.9-3
--------------
* Fix stray reference in the package manual

SixSigma 0.9-3
--------------
* Improvements in function 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
--------------
* 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
--------------
* 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
--------------
* Fixed NOTES not accepted by CRAN CHECK

SixSigma 0.8-0
--------------
* Function ss.rr now allows one single appraiser
* Function 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 (not uploaded to CRAN)
-------------------------------------
* 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
--------------
* New function 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
--------------
* Fixed encoding field in DESCRIPTION
* ggplot2 0.9.2 compatibility implemented

SixSigma 0.6.2
--------------
* Bug fixed in ss.lfa function (thanks to Sanjay Shinde for reporting)
* ggplot2 0.9.2 compatibility update
* NEWS file format fixed
* Code tests implemented (ss.lfa)

SixSigma 0.6.1
--------------
* New dataset (ss.data.batteries)
* New and updated references in help files
* Now function ss.lfa (loss function analysis) allows smaller-the-better and
  larger-the-better CTQs, besides nominal-the-best

SixSigma 0.6.0
--------------
* 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
-------------- 
* 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.
