chronohorogram: Draws a chronohorogram of records
Description
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.
Usage
chronohorogram(indf = NA, title = "Chronohorogram", startyear = 1980,
endyear = NA, colors = c("red", "blue"), ptsize = 1)
Arguments
indf
input data frame containing biodiversity data set
title
title of the plot. Default is "Chronohorogram"
startyear
starting year for the plot. Default is 1980
endyear
end year for the plot. Default is current year
colors
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
Examples
Run this code# NOT RUN {
chronohorogram(inat)
# }
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