sizefrequency {geostats} | R Documentation |
calculate the size-frequency distribution of things
Description
Count the number of items exceeding a certain size.
Usage
sizefrequency(dat, n = 10, log = TRUE)
Arguments
dat |
a numerical vector |
n |
the number of sizes to evaluate |
log |
logical. If |
Value
a data frame with two columns size
and
frequency
Examples
data(Finland,package='geostats')
sf <- sizefrequency(Finland$area)
plot(frequency~size,data=sf,log='xy')
fit <- lm(log(frequency) ~ log(size),data=sf)
lines(x=sf$size,y=exp(predict(fit)))
[Package geostats version 1.6 Index]