为什么函数返回值t = 13.214,而print(..., digits = 3)返回t = 10
vals <- data.frame(a = c(4, 2, 4, 7, 3, 4, 8, 8, 3, 0, 1, 5, 4, 6, 4, 8, 7, 9, 6, 6, 3, 6, 7, 4),
b = c(5, 7, 6, 13, 12, 6, 14, 16, 4, 2, 7, 7, 4, 8, 9, 9, 11, 13, 12, 8, 3, 8, 7, 7))
stats::t.test(x = vals)
# One Sample t-tes