Compare the effects of two factors \(X_1\) and \(X_2\) on the spatial distribution of the attribute \(Y\).
Usage
ecological_detector(y, x1, x2, alpha = 0.95)
Arguments
- y
Dependent variable, continuous numeric vector.
- x1
Covariate \(X_1\), factor, character or discrete numeric.
- x2
Covariate \(X_2\), factor, character or discrete numeric.
- alpha
(optional) Confidence level of the interval,default is 0.95.
Value
A list.
F-statisticthe result of F statistic for ecological detector
P-valuethe result of P value for ecological detector
Ecologicalis there a significant difference between the two factors \(X_1\) and \(X_2\) on the spatial distribution of the attribute \(Y\)
Examples
ecological_detector(y = 1:7,
x1 = c('x',rep('y',3),rep('z',3)),
x2 = c(rep('a',2),rep('b',2),rep('c',3)))
#> $`F-statistic`
#> [1] 2.133333
#>
#> $`P-value`
#> [1] 0.189319
#>
#> $Ecological
#> [1] No
#> Levels: Yes No
#>
