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Fixing Y-Axis to a certain range of values...

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T O P I C R E V I E W
javaman	Posted - 05 May 2009 : 14:51:54 Hi, I have a plot that receives a ton of data - and the data is normally centered around a certain value (say 15000). This plot is a time-series plot. Now, sometimes we get invalid data (usually a 0 value) which is okay - but this throws off the displayed Y-Axis - it now goes from 0 - 15000 - and all the data is scrunched at the top with that one point at the bottom. The question is whether I can fix the Y-Axis to a certain range - and those that fall outside that range are just not shown in the plot? Thus, for instance, my Y-Axis would range from say 14800 to 15200. Any ideas on this or do you need more info? thanx. Thanx - Joe!
1 L A T E S T R E P L I E S (Newest First)
quinncurtis	Posted - 05 May 2009 : 15:52:27 You can define a coordinate system to any range you want; you do not have to use the auto-scaling. This is all discussed in Chapter 4 - Scaling and Coordinate Systems. double xMin = -5; double xMax = 15; double yMin = 0; double yMax = 105; CartesianCoordinates simpleScale; simpleScale = new CartesianCoordinates(xMin, yMin, xMax, yMax); It may be that you want to first auto-scale, and then change one or more of the minimum or maximum values. Again, Chapter 4 discusses this. double [] xData = {2,3,4,5,6,7,8,9}; double [] yData = { 22, 33, 44, 55, 46, 33, 25, 14}; SimpleDataset dataset = new SimpleDataset("“Sales", xData, yData); CartesianCoordinates simpleScale = new CartesianCoordinates(); simpleScale.autoScale(dataset); simpleScale.setScaleStartY(20);

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