flower (version 1.0)

SI3: Among-individual synchrony index of Koenig et al. (2003)

Description

The mean of all pairwise Pearson correlations coefficients (ri) of the numbers of open flowers per day (xti) of all individuals within a population.

Usage

SI3(dd, pop, ind)

Arguments

dd

Flowering data.

pop

ID of population.

ind

ID of individual.

Value

• si3
  Among-individual synchrony index of Koenig (2003).
• ri
  All pairwise Pearson correlations coefficients (ri) of xit.
• xit
  The numbers of open flowers per day.

Details

si3=mean(cor(xit))

References

{[1]}{Koenig WD, Kelly D, Sork VL, Duncan RP, Elkinton JS, Peltonen MS, Westfall RD. Dissecting components of population-level variation in seed production and the evolution of masting behavior. Oikos. 2003;102:581~591.}

See Also

nothing

Examples

a1=c(0,1,1,1,0,0,0)
a2=c(0,1,0,1,1,0,0)
a3=c(0,0,0,1,1,1,0)
a4=c(1,0,0,1,1,0,1)
a5=c(0,0,1,1,1,0,1)
a6=c(0,0,0,1,1,1,1)
pop=c("pop1","pop1","pop1","pop2","pop2","pop2")
ind=c(1,2,3,1,2,3)
dd=rbind(a1,a2,a3,a4,a5,a6)
colnames(dd)=c("D5/1","D5/2","D5/3","D5/4","D5/5","D5/6","D5/7")
C=SI3(dd,as.matrix(pop),as.matrix(ind))
C