Uses of Class
org.rrd4j.data.Variable
Package
Description
RRD4J is a high performance data logging and graphing system for time series data, implementing
RRDTool's functionality in Java.
core RRD4J implementation.
RRD4J data management.
RRD4J graph capabilities.
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Uses of Variable in org.rrd4j
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Uses of Variable in org.rrd4j.core
Modifier and TypeMethodDescriptionvoid
DataHolder.datasource
(String name, String defName, Variable var) Creates a datasource that performs a variable calculation on an another named datasource to yield a single combined timestamp/value. -
Uses of Variable in org.rrd4j.data
Modifier and TypeClassDescriptionstatic class
Calculate the average of the data points.static class
Find the first valid data point and it's timestampstatic class
Find the first last valid point and it's timestampstatic class
Calculate the correlation coefficient of the least squares line.static class
Calculate the y-intercept of the least squares line.static class
Calculate the slop of the least squares line.static class
The biggest of the data points and it's time stamp (the first one) is stored.static class
The smallest of the data points and it's time stamp (the first one) is stored.static class
Find the point at the n-th percentile.static class
static class
Calculate the standard deviation for the data point.static class
Calculate the sum of the data points.Modifier and TypeMethodDescriptionvoid
DataProcessor.addDatasource
(String name, String defName, Variable var) Deprecated.void
DataProcessor.datasource
(String name, String defName, Variable var) Creates a datasource that performs a variable calculation on an another named datasource to yield a single combined timestamp/value.DataProcessor.getVariable
(String sourceName, Variable var) Returns single aggregated value for a single datasource. -
Uses of Variable in org.rrd4j.graph
Modifier and TypeMethodDescriptionvoid
RrdGraphDef.datasource
(String name, String defName, Variable var) Creates a datasource that performs a variable calculation on an another named datasource to yield a single combined timestamp/value.
DataProcessor.datasource(String, String, Variable)
instead.