https://github.com/sleitnick/rbxpolyreg

Polynomial Regression for Lua/Roblox
https://github.com/sleitnick/rbxpolyreg

Last synced: 4 days ago
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Polynomial Regression for Lua/Roblox

• Host: GitHub
• URL: https://github.com/sleitnick/rbxpolyreg
• Owner: Sleitnick
• License: gpl-3.0
• Created: 2020-01-16T00:11:00.000Z (almost 5 years ago)
• Default Branch: master
• Last Pushed: 2020-01-16T01:23:34.000Z (almost 5 years ago)
• Last Synced: 2024-11-02T13:21:15.328Z (about 2 months ago)
• Language: Lua
• Homepage: https://www.roblox.com/library/4602247366/RbxPolyReg
• Size: 27.3 KB
• Stars: 4
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

        
# RbxPolyReg

Polynomial regression solver.

Full credit to the original author, Paul Lutus, and his [PolySolve](https://arachnoid.com/polysolve/) site. This is simply a port of his JavaScript code into Lua, which is covered under the GNU General Public License.

The Roblox ModuleScript is available [here](https://www.roblox.com/library/4602247366/RbxPolyReg).

---------------

## Usage

```lua

local RbxPolyReg = require(rbxPolyRegModuleScript)

-- Get matrix functions:

local matFuncs = RbxPolyReg.MatFunctions.new()

-- Each data entry can be 1 of 3 different types:

	-- 1) {Number, Number}

	-- 2) {X = Number; Y = Number} OR {x = Number; Y = Number}

	-- 3) Vector2

local data = {

	{-1, -1},

	{0, 3},

	{1, 2.5},

	{2, 5},

	{3, 4},

	{5, 2},

	{7, 5},

	{9, 4}

}

-- Degrees can be between 0 and 18:

local degrees = 2

-- Solve polynomial regression:

local result = matFuncs:ProcessData(data, degrees)

-- result[1]: Table of terms

-- result[2]: Correlation coefficient

-- result[3]: Standard error

-- List terms:

local terms = result[1]

for i,v in ipairs(terms) do

	print(("%.16e * x^%i"):format(v, i - 1))

end

-- Create source code for the polynomial regression:

local clampMin, clampMax = 0, 1000

local funcSrcCode = RbxPolyReg.ToFunctionSourceCode(terms, clampMin, clampMax)

print(funcSrcCode)

```