Dispersion widths
- iqr — interquartile range
 
- mad — mean absolute deviation
 
- stdev — standard deviation (row or column-wise) of vector/matrix entries
 
- stdevf — standard deviation
 
- strange — range
 
- variance — variance (and mean) of a vector or matrix (or hypermatrix) of real or complex numbers
 
- variancef — variance (and mean) of a vector or matrix of frequency-weighted real or complex numbers