[time-nuts] Lady Heather Question

[Ed Palmer]

I suspected that the graph issues might be involved with some display 
resolution issues.  So then if a spike appears and disappears at some 
point in time, does that mean that in the original data there was a 
combination of spike and no-spike data and the sub-sampling first picks 
one and then the other?  But does that mean that the standard deviation 
values are calculated from the sub-sampled values rather than the 
original data?

Thanks,
Ed

Mark Sims wrote:
> When you are viewing a time interval that is longer than one second per screen pixel,  the program must sub-sample the data.  Every second the screen is redrawn with a new set of samples.  Also the plots are rescaled according to the data being plotted (if auto-scaling is turned on).  With very noisy data,  like the raw oscillator plot,  you see the effects of what amounts to a new data set every second.   Turning on display filtering (F D command) helps smooth out the changes (but can hide very short disturbances). 		 	   		  
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