Created
July 19, 2017 19:56
-
-
Save drizzersilverberg/0e2957935a3063d39e7703211fc00d88 to your computer and use it in GitHub Desktop.
Catatan untuk Aziz dan Galih
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Data Test: | |
x1 x2 y | |
0.6 40 100 | |
0.44 30 73 | |
0.2 20 49 | |
note: x1 dan x2 adalah input (independent variable) dan y adalah output (dependent variable) | |
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> | |
Theta: | |
theta0 theta1 theta2 | |
1 2 3 | |
note: theta yang dihasilkan dari pembangunan model, ini saya ngacak aja nilai nya ... | |
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> | |
Prediksi: | |
y = theta0 + theta1*x1 + theta2*x2 | |
122.2 = 1 + 2(0.6) + 3(40) | |
91.88 = 1 + 2(0.44) + 3(30) | |
61.4 = 1 + 2(0.2) + 3(20) | |
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> | |
Hasil Prediksi: | |
x1 x2 y_prediksi | |
0.6 40 122.2 | |
0.44 30 91.88 | |
0.2 20 61.4 | |
Note: Jadi prediksi itu cuma ambil nilai x1 dan x2 saja, nilai y diabaikan untuk dibandingkan dengan y_prediksi nanti di RMSE ... | |
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> | |
RMSE : | |
y y_prediksi | |
100 122.2 | |
73 91.88 | |
49 61.4 | |
error = square_root( sum(abs(y - y_prediksi)) / n) | |
Note: | |
square_root = akar kuadrat | |
sum = penjumlahan | |
abs = nilai absolute (misal -22 jadi 22) | |
n = jumlah data | |
coba hitung sendiri, terus check lagi rumus ini siapa tahu ada salah, maklum sudah lama tidak ngitung angka ... | |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment