F Test to Compare Two Variances Usage: var.test(x, ...) The default setting: var.test(x, y, ratio = 1, alternative = c( two.sided , less , greater ), conf.level = 0.95, ...) example: a=c(6.7,3.8,5.2,4.2,5.3,3.2,7.6,7.4,3.1,4.2) p=c(5.9,6.0,5.2,6.8,14