Function Reference: M
@mae Mean of absolute error (difference) between series.
@makedate Convert numeric representation of a date to date number.
@mape Mean absolute percentage error (difference) between series.
@mav Trailing moving averages (ignore NAs).
@mavc Centered moving averages (ignore NAs).
@maxerrcount Maximum number of errors in a program before halting execution.
@maxes Maximum values (multiple).
@maxsby Maximum values in a series for each specified group.
@mcor Trailing moving correlations (ignore NAs).
@mcov Trailing moving population covariance (no d.f. adjustment; ignore NAs).
@mcovp Trailing moving population covariance (no d.f. adjustment; ignore NAs).
@mcovs Trailing moving sample covariance (d.f. adjusted; ignore NAs).
@meansby Mean of observations in a series for each specified group.
@mediansby Medians for a series for each specified group.
@mid Substring in middle or from middle to end of string.
@minner Trailing moving inner product of two series (ignore NAs).
@mins Minimum values (multiple).
@minsby Minimum values in a series for each specified group.
@minute Minute of the hour of the observation.
@mkurt Trailing moving kurtosis (ignore NAs).
@mmax Trailing moving maximums (ignore NAs).
@mmedian Trailing moving median (ignore NAs).
@mmin Trailing moving minimums (ignore NAs).
@mnas Trailing moving missing observations.
@mnrnd Matrix of normal random numbers.
@mobs Trailing moving non-missing observations.
@mod Floating point remainder.
@month Month of the year of the observation.
@movav Trailing moving averages (propagate NAs).
@movavc Centered moving averages (propagate NAs).
@movcor Trailing moving population correlations (propagate NAs).
@movcov Trailing moving population covariance (no d.f. adjustment; propagate NAs).
@movcovp Trailing moving population covariance (no d.f. adjustment; propagate NAs).
@movcovs Trailing moving sample covariance (d.f. adjusted; propagate NAs).
@movinner Trailing moving inner product of two series (propagate NAs).
@movkurt Trailing moving kurtosis (propagate NAs).
@movmax Trailing moving maximums (propagate NAs).
@movmedian Trailing moving median (propagate NAs).
@movmin Trailing moving minimums (propagate NAs).
@movskew Trailing moving skewness (propagate NAs).
@movstdev Trailing moving sample standard deviations (d.f. adjusted; propagate NAs).
@movstdevp Trailing moving population standard deviations (non-d.f. adjusted; propagate NAs).
@movstdevs Trailing moving sample standard deviations (d.f. adjusted; propagate NAs).
@movsum Trailing moving sums (propagate NAs).
@movsumsq Trailing moving sums of squares (propagate NAs).
@movvar Trailing moving population variances (non d.f. adjusted; propagate NAs).
@movvarp Trailing moving population variances (non-d.f. adjusted; propagate NAs).
@movvars Trailing moving sample variances (d.f. adjusted; propagate NAs).
@mrnd Matrix of uniform random numbers.
@mse Mean of square error (difference) between series.
@mskew Trailing moving skewness (ignore NAs).
@mstdev Trailing moving sample standard deviation (d.f. adjusted; ignore NAs).
@mstdevp Trailing moving population standard deviations (non-d.f. adjusted; ignore NAs).
@mstdevs Trailing moving sample standard deviations (d.f. adjusted; ignore NAs).
@msum Trailing moving sums (ignore NAs).
@msumsq Trailing moving sums of squares (ignore NAs).
@mvar Trailing moving population variances (non-d.f. adjusted; ignore NAs).
@mvarp Trailing moving population variances (non-d.f. adjusted; ignore NAs).
@mvars Trailing moving population variances (d.f. adjusted; ignore NAs).