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Compute the sample quantiles of the pixel values of a given pixel image.
# S3 method for im
quantile(x, …)
A pixel image.
An object of class "im"
.
Optional arguments passed to quantile.default
.
They determine the probabilities for which quantiles should be
computed. See quantile.default
.
A vector of quantiles.
This simple function applies the generic quantile
operation
to the pixel values of the image x
.
This function is a convenient way to inspect an image and to obtain summary statistics. See the examples.
# NOT RUN {
# artificial image data
Z <- setcov(square(1))
# find the quartiles
quantile(Z)
# find the deciles
quantile(Z, probs=(0:10)/10)
# }
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