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I hope that someday Octave will include more statistics functions. If
you would like to help improve Octave in this area, please contact
@email{bug-octave@bevo.che.wisc.edu}.
- Function File: mean (x)
-
If x is a vector, compute the mean of the elements of x
If x is a matrix, compute the mean for each column and return them
in a row vector.
- Function File: median (x)
-
If x is a vector, compute the median value of the elements of
x.
If x is a matrix, compute the median value for each
column and return them in a row vector.
- Function File: std (x)
-
If x is a vector, compute the standard deviation of the elements
of x.
If x is a matrix, compute the standard deviation for
each column and return them in a row vector.
- Function File: cov (x, y)
-
If each row of x and y is an observation and each column is
a variable, the (i,j)-th entry of
cov (x, y)
is the covariance between the i-th
variable in x and the j-th variable in y. If called
with one argument, compute cov (x, x)
.
- Function File: corrcoef (x, y)
-
If each row of x and y is an observation and each column is
a variable, the (i,j)-th entry of
corrcoef (x, y)
is the correlation between the
i-th variable in x and the j-th variable in y.
If called with one argument, compute corrcoef (x, x)
.
- Function File: kurtosis (x)
-
If x is a vector of length N, return the kurtosis
of x. If x is a matrix, return the row vector containing
the kurtosis of each column.
- Function File: mahalanobis (x, y)
-
Return the Mahalanobis' D-square distance between the multivariate
samples x and y, which must have the same number of
components (columns), but may have a different number of observations
(rows).
- Function File: skewness (x)
-
If x is a vector of length N, return the skewness
of x. If x is a matrix, return the row vector containing
the skewness of each column.
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