median
The median of a list, exact.
xs(array) --
Statistics
mode
The most frequent value(s) of a list, as an array.
xs(array) --
variance
Population variance (divide by n), exact.
xs(array) --
sampleVariance
Sample variance (divide by n - 1), exact.
xs(array) --
stdDev
Population standard deviation, exact (a surd when needed).
xs(array) --
sampleStdDev
Sample standard deviation (n - 1), exact.
xs(array) --
covariance
Population covariance of two equal-length lists, exact.
xs(array) --ys(array) --
correlation
Pearson correlation coefficient of two lists, exact.
xs(array) --ys(array) --
percentile
The p-th percentile of a list (p from 0 to 100).
xs(array) --p(number) -- 0 to 100
zScore
How many standard deviations x lies from the mean of the list.
xs(array) --x(number) --
dataRange
max - min of a list. (range() makes an array of whole numbers.)
xs(array) --
fiveNumberSummary
Minimum, first quartile, median, third quartile and maximum.
xs(array) --
iqr
Interquartile range: third quartile minus first quartile.
xs(array) --
binCounts
Frequency counts of a list in equal-width bins from lower to upper. (histogram() draws one.)
xs(array) --lower(number) --upper(number) --bins(integer) --