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

In flower: Tools for characterizing flowering traits

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.

Details

si3=mean(cor(xit))

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.

Note

nothing

Author(s)

WANG,XIE

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

Example output

[1] "pop1"
[1] "pop1 Xip- numbers of open flowers per day"
     pop1 - 1 pop1 - 2 pop1 - 3
D5.1        0        0        0
D5.2        1        1        0
D5.3        1        0        0
D5.4        1        1        1
D5.5        0        1        1
D5.6        0        0        1
[1] "pop1 ri-  all pairwise Pearson correlations coefficients (ri) of xit"
           pop1 - 1  pop1 - 2   pop1 - 3
pop1 - 1  1.0000000 0.3333333 -0.3333333
pop1 - 2  0.3333333 1.0000000  0.3333333
pop1 - 3 -0.3333333 0.3333333  1.0000000
[1] "pop2"
[1] "pop2 Xip- numbers of open flowers per day"
     pop2 - 1 pop2 - 2 pop2 - 3
D5.1        1        0        0
D5.2        0        0        0
D5.3        0        1        0
D5.4        1        1        1
D5.6        0        0        1
[1] "pop2 ri-  all pairwise Pearson correlations coefficients (ri) of xit"
          pop2 - 1  pop2 - 2  pop2 - 3
pop2 - 1 1.0000000 0.1666667 0.1666667
pop2 - 2 0.1666667 1.0000000 0.1666667
pop2 - 3 0.1666667 0.1666667 1.0000000
[1] "SI3:the mean of ri"
$Result
         pop1      pop2
SI3 0.1111111 0.1666667

flower documentation built on May 1, 2019, 9:27 p.m.