Draws a detailed temporal representation (also known as chronohorogram) of the
dates in the provided data set. For more information on the chronohorogram,
please see the References section.
Pair of colors to build color gradient, in the form of a
character vector. Default is blue (less) - red (more) gradient
c("red", "blue")
ptsize
point size adjustment factor. Default is 1
References
Arino, A. H., & Otegui, J. (2008). Sampling biodiversity sampling.
In Proceedings of TDWG (pp. 77-78). Retrieved from
http://www.tdwg.org/fileadmin/2008conference/documents/Proceedings2008.pdf#page=77