Statistical Analysis with Swift by Jimmy Andersson

Author:Jimmy Andersson
Language: eng
Format: epub
ISBN: 9781484277652
Publisher: Apress

do {

let regressor = try MultipleLinearRegression(

from: points,

data: \.x, \.y,

target: \.z

)

let observed = points[42]

let prediction = regressor.predict(x: observed)

print(

"""

f(x) = \(regressor)

Prediction for (\(observed.x), \(observed.y))

\(prediction)

Observed value for (\(observed.x), \(observed.y))

\(observed.z)

"""

)

}

catch {

print("An error was thrown: \(error)")

}

// Prints:

// f(x) = 1.010083366089924 * x_1 –

// 0.9873800441120847 * x_2 - 0.23672317614604843

// Prediction for (3.0, 3.0)

// -0.16861321021253062

// Observed value for (3.0, 3.0)

// -0.379395117657068

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