Curve Fitting Toolbox™

datastats - Data statistics

Syntax

xds = datastats(xdata) [xds,yds] = datastats(xdata,ydata)

Description

xds = datastats(xdata) returns statistics for the column vector xdata to the structure xds. Fields in xds are listed in the table below.

Field	Description
`num`	The number of data values
`max`	The maximum data value
`min`	The minimum data value
`mean`	The mean value of the data
`median`	The median value of the data
`range`	The range of the data
`std`	The standard deviation of the data

[xds,yds] = datastats(xdata,ydata) returns statistics for the column vectors xdata and ydata to the structures xds and yds, respectively. xds and yds contain the fields listed in the table above. xdata and ydata must be of the same size.

Remarks

If xdata or ydata 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.

Example

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: 78.601

datastats - Data statistics

Syntax

Description

Remarks

Example

See Also