|  | frequenciesOverTime       Plot frequency of query expressions over time | 
|  | frequenciesOverDomains    Box plot frequency of query expressions per topic domain | 
|  | conditionsOverTime        Plot frequency of query expressions over time under different conditions | 
|  | alternativesOverTime      Plot proportion of alternative spellings/variants over time | 
|  | regional                  Map plot regional frequencies of query expression | 
|  | mosaicplot                Visualize frequencies of alternative query terms in relation to other variables | 
|  | highcharter-example       Visualize frqequencies of optionally alternative terms over time with interactive HTML and JavaScript elements using the package highcharter as wrapper for Highcharts | 
|  | shiny-frequency-curves    Web application that plots frequency curves with highcharts and shiny | 
|  | writtenVsSpoken           Compare frequencies in written vs. spoken corpora |