Computes sample
quantiles for an image, with the option of a mask.
# S3 method for nifti
quantile(x, ..., mask)
# S3 method for anlz
quantile(x, ..., mask)
Arguments
| x |
Object of class nifti |
| ... |
Arguments passed to quantile |
| mask |
object to subset the image. If missing, then all
values of the image are used |
Value
Output of quantile
Examples
img = nifti(array(rnorm(10^3), dim = rep(10, 3)))
mask = img > 0
quantile(img, mask = mask)
#> 0% 25% 50% 75% 100%
#> 0.006429538 0.304863159 0.656974861 1.215722182 2.873133341