lexis.age               Deprecated. Emphasize a certain age in Lexis
                        grid
lexis.cohort            Deprecated. Emphasize a certain cohort in a
                        Lexis grid
lexis.grid              Deprecated. Plot a Lexis grid
lexis.grid2             Deprecated. Plot a Lexis grid
lexis.hmd               Deprecated. Fill Lexis triangles by HMD data
lexis.lifeline          Deprecated. Plot lifelines into a Lexis grid
lexis.survey            Deprecated. Emphasize a survey range in a Lexis
                        grid Takes an existing Lexis grid and adds a
                        coloured parallelogram to highlight a survey
                        range.
lexis.year              Deprecated. Emphasize a certain year in Lexis
                        grid.
lexis_age               Emphasize a certain age in Lexis grid
lexis_cohort            Emphasize a certain cohort in a Lexis grid
lexis_grid              Plot a Lexis grid
lexis_lifeline          Plot lifelines into a Lexis grid
lexis_polygon           Plot a polygon inside a Lexis grid Takes an
                        existing Lexis grid and adds a polygon.
lexis_year              Emphasize a certain year in Lexis grid.
lifelines_sample        Data for 300 random lifelines
prepare.hmd             Deprecated. Prepare HMD data for 'lexis.hmd()'
tidy_triangle_data      Tidy triangular data (Lexis triangles)
