Reduce number of ploted data points possible?

[FanMSL]

Hello

Is it possible to Reduce the number of printed plotted data points?

Lets say I use an over sized array of double but only the first data elements are valid to be plotted, the number of valid data elements is know, next i could dynamic re size the array or initialize al remaining elements by the value of the last valid data element but is there an other way to the channel data partially in case an over sized array of double is used.
I did try by initialize the array of double by double.NAN hopefull the plot engine will skip plotting when double.NAN value is used but it doesn't.

Regards