Package Exports
- live-moving-average
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Readme
live-moving-average
An ever updating average of the last n values. See Moving Average.
Reuses the values array to prevent GC-thrashing. Does not slow down with an increasing window size:
window size 10, 1 push, 1 get x 38,591,962 ops/sec ±0.66% (89 runs sampled)
window size 10, 1 push, 10 get x 27,893,789 ops/sec ±0.80% (90 runs sampled)
window size 1000, 1 push, 1 get x 38,770,793 ops/sec ±0.56% (87 runs sampled)
window size 100, 1 push, 10 get x 28,240,783 ops/sec ±0.43% (96 runs sampled)
Installing
npm install live-moving-averageUsage
const createWindow = require('live-moving-average')
const avg = createWindow(3, 0) // size of 3, fill with 0
avg.push(2)
avg.push(3)
avg.push(4)
avg.get() // 3, because (2 + 3 + 4) / 3
avg.push(5)
avg.push(6)
avg.get() // 5, because (4 + 5 + 6) / 3
avg.push(7)
avg.get() // 6, because (5 + 6 + 7) / 3API
const w = createWindow(size, fill = 0)
size and fill must be a number.
w.push(val)
val must be a number.
w.get()
Returns a number.
Contributing
If you have a question or have difficulties using live-moving-average, please double-check your code and setup first. If you think you have found a bug or want to propose a feature, refer to the issues page.