Configuring: Statistics
Select the statistics to be calculated, the fields on which they must be calculated, and whether they must be calculated using an index or a time base.
Steps to configure
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Base selection:Select the base to be used to calculate the statistics.
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Field selection: Select the fields for which you would like to calculate the statistics.
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Statistics selection: Select the statistics that you want calculated.
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Execution: A new dataset is created, containing the statistics for each of the selected fields.
Step 1: Base selection
Select whether the statistics must be calculated using an index or a time base.
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Index base: all statistics are calculated over the same interval.
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Time based: all statistics are calculated over potentially varying intervals.
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Default settings: index-based is selected.
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Minimum configuration: if time is chosen as base, there has to be at least one timestamp field. Select the relevant timestamp field from the drop down list.
Step 2: Field selection
Select the fields for which you would like to calculate the statistics.
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Default settings: all the fields are selected by default.
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Minimum configuration: at least one field has to be selected.
Step 3: Statistics selection page
Select the statistics to be calculated for the selected fields.
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Average: the sum of all the values in the window, divided by the count of values.
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Kurtosis: a measure of whether the data are peaked or flat relative to a normal distribution. Data sets with high kurtosis tend to have a distinct peak near the mean, decline rather rapidly, and have heavy tails. Data sets with low kurtosis tend to have a flat top near the mean rather than a sharp peak.
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Maximum: the greatest value in the window.
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Minimum: the smallest value in the window.
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Skew: a measure of the asymmetry of the distribution of data values. For example, in a histogram, skew occurs if the values on one side of the histogram tend to extend further from the median than the values on the other side.
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Standard deviation: measure of statistical dispersion; it is calculated as the positive square root of the variance.
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Variance: measure of statistical dispersion, averaging the squared distance of its possible values from the mean.
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Default: all the statistics are selected by default.
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Minimum configuration: at least one statistic has to be selected.
Step 4: Execute
A new dataset is created containing the selected statistics for the selected fields.
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