TensorFlow Machine Learning Cookbook - Second Edition

How to do it...

We proceed with the recipe as follows:

1. We start by loading the necessary libraries, creating a graph, and loading the data:

import matplotlib.pyplot as plt 
import numpy as np 
import tensorflow as tf 
from sklearn import datasets 
from tensorflow.python.framework import ops 
ops.reset_default_graph() 
sess = tf.Session() 
iris = datasets.load_iris() 
x_vals = np.array([x[3] for x in iris.data]) 
y_vals = np.array([y[0] for y in iris.data])

2. We then declare our learning rate, batch size, placeholders, and model variables:

learning_rate = 0.05 batch_size = 25 x_data = tf.placeholder(shape=[None, 1], dtype=tf.float32) y_target = tf.placeholder(shape=[None, 1], dtype=tf.float32) A = tf.Variable(tf.random_normal(shape=[1,1])) b = tf.Variable(tf.random_normal(shape=[1,1])) ...