About:

mrscake (read: "Mrs. Cake") is a machine learning library that automatically picks the best[1] model for you. It can also generate code. Generated code might look like this:

#### GENERATED CODE ####
def predict(aquatic, domestic, eggs, backbone, feathers, 
            predator, airborne, hair, toothed, tail, 
            breathes, catsize, venomous, legs, fins, milk):
    if eggs == "no":
        return "mammal"
    else:
        if backbone == "yes":
            return "bird"
        else:
            if aquatic == "no":
                return "insect"
            else:
                return "crustacean"

Compiling:

Compile it using

    ./configure
    make
    make install

.

It has a Ruby and a Python interface.

Usage:

Python

import mrscake
data = mrscake.DataSet()
data.add(["a", 1.0, "blue"], output="yes")
data.add(["a", 3.0, "red"], output="yes")
data.add(["b", 2.0, "red"], output="no")
data.add(["b", 3.0, "blue"], output="no")
data.add(["a", 5.0, "blue"], output="yes")
data.add(["b", 4.0, "blue"], output="yes")
model = data.train()

result = model.predict(["a", 2.0, "red"])

code = model.generate_code("python") # or: ruby, javascript, c

print code

Ruby

require 'mrscake'
data = MrsCake::DataSet.new
data.add([:a, 1.0, :blue], :yes)
data.add([:a, 3.0, :red], :yes)
data.add([:b, 2.0, :red], :no)
data.add([:b, 3.0, :blue], :no)
data.add([:a, 5.0, :blue], :yes)
data.add([:b, 4.0, :blue], :yes)
model = data.train()
model.print

result = model.predict([:a, 2.0, :red])

code = model.generate_code("ruby") # or: ruby, javascript, c

puts code

---

[1] Mrscake picks a model by an information-theoretic approach called MDL: It selects the model with the shortest description length. I.e., from a code generation standpoint, it gives you the shortest piece of code that would recognize all the examples in your training set. (Also known of the Kolmogorov complexity of the labels, given the feature data)