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Re: Question about PlotRange
Posted:
Jan 18, 2013 12:49 AM


On 1/16/13 at 1:42 AM, james@stein.org (James Stein) wrote:
>I am mystified by the two charts produced by this expression:
>Table [ >ListPlot [ Table [ x, { x, .13, .13, .01 } ] , Axes > True, >Filling > 0, FillingStyle > { Red, Darker [ Green ] } , PlotRange >> { Automatic, yRange } >], { yRange, { Full, { 0.1, 0.06} } } ]
>If 'PlotRange' allows 'Full' for the yaxis, all data is plotted as >expected, but if 'PlotRange' restricts extreme values of y, *some* >extreme values have vanished, but *not* the *most* extreme values.
>My desire is for all 27 values to appear on the second chart. (In >more realistic situations, the visual 'Filling' is important.) How >is this to be achieved?
I probably don't understand what you want with the second chart. And I do admit the graphic I see in version 9 running on OS X 10.8.2 isn't quite what I would have expected. But I don't see why you are expecting the second plot to show all 27 values.
The last 8 values are:
In[14]:= Table[x, {x, .13, .13, .01}][[7 ;;]]
Out[14]= {0.07,0.08,0.09,0.1,0.11,0.12,0.13}
all of which are greater than the maximum value (0.06) you provide for PlotRange in the second plot. Clearly the cannot be plotted with that plot range specification.
As for the most extreme positive value (0.13) the value is not plotted. All that is shown is a filling line truncated at 0.06, the limit specified by the plot range you provided. What I find a bit surprising and don't understand is why only the first and last values are shown with a truncated filling line while other values outside the plot range show no similar truncated filling line. I would have expected either all values outside to the plot range to either be shown with a truncated filling line or not shown at all.



