Filter or Window function from the analysis Library

Friends,  
I will be collecting about 20,000 data points.  I would like to reduce the number of points to plot to about 300 to 500 points.  (i call this filtering)   I know there is an Advanced Analysis Library function that would do this;  which one would be the best?  
Dave    

Hi,
one possibility without even using the Advanced  Analysis Library is to use the 'point frequency' parameter in PlotXY:
PlotXY ( plot_handle, graph_control, x_array, y_array, 20000, VAL_DOUBLE, VAL_DOUBLE, VAL_THIN_LINE, VAL_EMPTY_SQUARE, VAL_SOLID, 40, VAL_RED); this would plot every 40th point out of your 20000 data points.

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