Returns the observed proportion of concordant pairs (the person higher on
the predictor is also higher on the outcome) in bins of the absolute
difference in the predictor, with simultaneous (family-wise) bootstrap
confidence intervals. These are the points and whiskers drawn by
plot(fit, bins = TRUE) for curves from posc_emp(); see its Details for
the method.
Arguments
- object
A
"posc"object fromposc_emp()created with bins.- level
Confidence level of the simultaneous intervals. Defaults to the level used when the curve was created.
Value
A data frame with one row per bin: delta_low and delta_high
(bin limits), delta (mean absolute difference of the pairs in the
bin), n_pairs, p (observed proportion), and lower and upper
(simultaneous confidence limits; NA if the curve was fitted with
n_boot = 0). Bins that contain no pairs have NA estimates.
Examples
set.seed(1)
x <- rnorm(100)
y <- x + rnorm(100)
fit <- posc_emp(x, y, n_boot = 200, bins = 6)
posc_bins(fit)
#> delta_low delta_high delta n_pairs p lower upper
#> 1 0.0000000 0.2568641 0.1289515 784 0.5650510 0.4816081 0.6448096
#> 2 0.2568641 0.5227262 0.3913171 784 0.6262755 0.5332455 0.7105363
#> 3 0.5227262 0.8048609 0.6613284 783 0.6756066 0.5770506 0.7603478
#> 4 0.8048609 1.1490468 0.9684919 784 0.7576531 0.6343326 0.8488087
#> 5 1.1490468 1.6023812 1.3532661 783 0.8301405 0.7032188 0.9092579
#> 6 1.6023812 2.5177959 1.9665980 784 0.9221939 0.7946907 0.9727928