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Informations about the package moving-average
Moving Average
Calculate Moving Averages.
This package can help when you need moving averages in your PHP project.
For example, regular measurements of temperature or weight are not continuous; to have an idea of direction over time, a moving average is what you need.
To make numbers visual, I generated some example graphs for this doc.
You can also have a look at the tests for some usage examples.
Installation
Using composer: composer require dcvn/moving-average
Big or small data: Arrays and Generators
Statistics can have large data sets, and then Generators can help.
MovingAverage supports both Arrays and Generators for both input and output.
There are tests for all 4 variants. Use them to get started!
Average periods, delays, and weighted average.
The graphs below use this set of values:
1. No average
Calculate the "average" over a period of 1, you will get the exact same set of values:
Result values are equal to input values, because of period=1.
2. Average over the last n values
Calculate average over the current value and 3 previous values.
3. Weighted average over the last n values
Calculate average over the current value and 3 previous values, with different importance. In the example, current value is least important (w=1), previous value most (w=5).
4. Average over previous n, current, and next n values.
Calculate average over 5 values: previous 2, current, and next 2.
5. Weighted average over previous n, current, and next n values.
Calculate average over 5 values: previous 2, current, and next 2, with different importance. In the example, the current value is most important (w=5), past less (4, 2), future least (3, 1).
Graphs in this doc have been generated using JPGraph
