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java.lang.Objectorg.achartengine.util.MathHelper
public class MathHelper
Utility class for math operations.
Field Summary | |
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static double |
NULL_VALUE
A value that is used a null value. |
Method Summary | |
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static float[] |
getFloats(java.util.List<java.lang.Float> values)
Transforms a list of Float values into an array of float. |
static java.util.List<java.lang.Double> |
getLabels(double start,
double end,
int approxNumLabels)
Computes a reasonable set of labels for a data interval and number of labels. |
static double[] |
minmax(java.util.List<java.lang.Double> values)
Calculate the minimum and maximum values out of a list of doubles. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final double NULL_VALUE
Method Detail |
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public static double[] minmax(java.util.List<java.lang.Double> values)
values
- the input values
public static java.util.List<java.lang.Double> getLabels(double start, double end, int approxNumLabels)
start
- start valueend
- final valueapproxNumLabels
- desired number of labels
public static float[] getFloats(java.util.List<java.lang.Float> values)
values
- the list of Float
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