I’ve been converting some of the functions from the Excel add-in to Javascript functions within a library. It’s finally ready for release and can be found here.
It contains functions to:
- Smooth data
- Deseasonalise data
- Perform least squares regression
- Exponential smoothing
- Create auto-correlation and partial auto-correlation plots
- Market research functions
- Utility functions to modify arrays
There’s still some work to do on it but it can be used as is – go to the above link for more details.
I originally started it to created some smoothed lines for some D3 charts.
Hopefully it will prove useful.
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