Count2Inci: Incidence counts data transform into incidence frequency data
In JohnsonHsieh/ChaoEntropy: Statistical package 'ChaoEntropy'

Description Usage Arguments Value Author(s) See Also Examples

Transfer incidence counts data into incidence frequency data.

1	Count2Inci(count.data, t)

count.data

input species incidence counts data: a numerical matrix or a data frame of two columns. The first column is the frequency j=1, 2...; and the second column is incidence counts (Qj).

Example: there are 39 singletons, 18 doubletons and so on in Ant_data.count:

[1,]	1	39
[2,]	2	18
[3,]	3	13
[..,]	...	...
[16,]	19	2
[17,]	20	1
[18,]	29	1

t

the total number of sampling units.
e.g. See Ant_data: t = 62

a numeric vector which first entry is total number of sampling units, and followed by species incidence frequency.

Y.T. Wang ; Y.H. Lee ; K.S. Tseng ; Anne Chao
Maintainer : Anne Chao chao@stat.nthu.edu.tw

ChaoEntropy

# load the incidence counts data
data(Ant_data.count)
t <- 62


# Transform the data format
Count2Inci(Ant_data.count, t)
ChaoEntropy(data=Count2Inci(Ant_data.count, t), datatype="incidence", method="all",
            se=TRUE, nboot=200, conf=0.95)