conversion of Qwt 5.2.1 to Qwt 6.0.1 QwtData to what class

[quipu5]

conversion of Qwt 5.2.1 to Qwt 6.0.1 QwtData to what class

My application includes the class, QwtData, that was used with Qwt 5.2.1.
Now that I have upgraded to Qwt 6.0.1, what class should I use in place of QwtData?

Are there examples that I can view that show how QwtData was replaced by a new class?

Thank you in advance for assistance,

quipu5

[d_stranz]

QwtSeriesData