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Parent Chapters-> Omatrix6 graphics tecplot tphist

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Creating Histograms

Syntax	[y, ry] = tphist(x, K)
	[y, ry] = tphist(x, K, relativeFrequencies)
See Also	tpplot , tpput

Description
Create a histogram plot of the data in the numeric vector, x. The argument K specifies the number of bins to be used. If the value of K is 0, then the tphist function will determine the bin count automatically. If present, the argument relativeFrequencies, must equal true, and specifies that relative frequencies should be plotted.

The returned value y is the calculated frequency vector, and the returned argument ry is the relative frequency vector.

Examples
If at the O-Matrix prompt you enter,
   r = snormal(128000,1)
   tphist(r, 40);
Tecplot will create the following histogram plot for the normal distribution, r.

If you continue the example above by entering
   tpframe("Relative Frequencies")
   tphist(r, 30, true);
Tecplot will create a histogram plot for the relative frequencies