Data statistics
xds = datastats(x)
[xds,yds] = datastats(x,y)
xds = datastats(x) returns statistics for
the column vector x to the structure xds.
Fields in xds are listed in the table below.
Field | Description |
|---|---|
| The number of data values |
| The maximum data value |
| The minimum data value |
| The mean value of the data |
| The median value of the data |
| The range of the data |
| The standard deviation of the data |
[xds,yds] = datastats(x,y) returns
statistics for the column vectors x and y to
the structures xds and yds, respectively.
xds and yds contain the fields listed in
the table above. x and y must be of the same
size.
Compute statistics for the census data in census.mat:
load census
[xds,yds] = datastats(cdate,pop)
xds =
num: 21
max: 1990
min: 1790
mean: 1890
median: 1890
range: 200
std: 62.048
yds =
num: 21
max: 248.7
min: 3.9
mean: 85.729
median: 62.9
range: 244.8
std: 78.601If x or y contains complex values, only the
real parts are used in computing the statistics. Data containing Inf or NaN are processed using the usual
MATLAB® rules.