Changes in version 1.15 (2026-05-18)                  

  - Happy 20th anniversary for this package in 2026.

  - Add lattice panel functions to make lattice corrgrams.

  - Add corrgram2() to make grid-based corrgrams.

  - Documentation pages now created via Github Actions.

  - Remove corrgram(..., font.labels) argument.

  - Switch to MIT license

                  Changes in version 1.14 (2021-04-29)                  

  - The seriation package is moved from Imports to Suggests. This makes
    corrgram lighter loading for most people. (Requested by P.Kiener and
    others)

  - The outer.labels argument has improved default values.

                  Changes in version 1.13 (2018-07-09)                  

  - Test coverage at 95% using covr package.

  - New panel.fill() function, omits diagonal lines.

  - panel.conf and panel.cor now auto-scale based on absolute value of
    correlations.

  - panel.conf now only allows cor.method="pearson" (which is the
    default.) Fix issue #13.

                  Changes in version 1.12 (2017-05-07)                  

  - New vignette about an invalid correlation matrix.

  - corrgram() gives a better warning if a symmetric matrix has values
    outside [-1,1].

  - Added package logo on github.

                  Changes in version 1.11 (2017-04-03)                  

  - New argument outer.labels for adding labels along outside edges of
    corrgram. (Request of Vanessa Bruat and others.)

                  Changes in version 1.10 (2016-11-09)                  

  - Function corrgram() now returns the correlation matrix.

  - Fixed custom label ordering when order=TRUE for M.Bruneaux.

  - Began using testthat package.

                  Changes in version 1.9 (2016-07-16)                   

  - New panel function panel.cor for colored correlation values.

  - Fixed minor bugs with no complete cases.

  - Added more cases to tests directory.

                  Changes in version 1.8 (2015-07-03)                   

  - Namespace changes due to R devel changes.

                  Changes in version 1.7 (2015-02-13)                   

  - Added more seriate options.

                  Changes in version 1.6 (2014-08-29)                   

  - Moved packages from Depends to Imports.

  - Argument label.pos now defaults to c(.5, .5) for x,y positioning.
    (Request of Evan Williams).

  - New argument cor.method. (Request of Evan Williams).

                  Changes in version 1.5 (2013-08-29)                   

  - Updated references links. (Request of Michael Friendly).

  - Fixed small bug with test for correlation matrix. (Reported by F.
    Rosa)

                  Changes in version 1.4 (2012-11-07)                   

  - New argument col.regions to specify panel colors.

  - Re-worked examples section for more variety.

                  Changes in version 1.3 (2012-08-15)                   

  - New panel function panel.bar. (Request of dadrivr)

  - Added example for unclipped labels (in the test suite).

                  Changes in version 1.2 (2012-03-28)                   

  - Small bug. Now accepts NA values in correlation matrices, and NAs
    caused by missing combinations of data and cor(use="pair").

  - Non-numeric columns in the data will be ignored. (Request of JZ)

  - New panel function panel.density.

  - Test suite now includes corrgram of inverse correlation, partial
    correlation matrices.

                  Changes in version 1.1 (2011-10-20)                   

  - Added namespace.

                  Changes in version 1.0 (2011-07-02)                   

  - New panel function panel.conf.

  - New data set vote.

  - New arguments dir, type, label.srt, title, abs.

  - Now works for either a data.frame or a correlation matrix using the
    type argument.

  - New ordering method OLO using seriation package.

  - Ordering can now be done on absolute value of correlations.

                  Changes in version 0.1 (2006-11-30)                   

  - First release to CRAN.

                         Changes in version 0.0                         

  - Package development begins.