with tf.name_scope('inputs')可以将xs,ys所有包括进来,形成一个大的图层
图层名字就是with tf.name_scope()方法里的参数
with tf.name_scope('inputs'):
# define placeholder for inputs to network
xs = tf.placeholder(tf.float32, [None, 1],name='x_in')
ys = tf.placeholder(tf.float32, [None, 1],name='y_in')
编辑layer:
当选择用tensorflow中的激励函数(激活函数)的时候,tensorflow会默认添加名称
def add_layer(inputs, in_size, out_size, activation_function=None):
# add one more layer and return the output of this layer
with tf.name_scope('layer'):
with tf.name_scope('weights'):
Weights = tf.Variable(
tf.random_normal([in_size, out_size]),
name='W')
with tf.name_scope('biases'):
biases = tf.Variable(
tf.zeros([1, out_size]) + 0.1,
name='b')
with tf.name_scope('Wx_plus_b'):
Wx_plus_b = tf.add(
tf.matmul(inputs, Weights),
biases)
if activation_function is None:
outputs = Wx_plus_b
else:
outputs = activation_function(Wx_plus_b, )
return outputs
loss部分:
# the error between prediciton and real data
with tf.name_scope('loss'):
loss = tf.reduce_mean(
tf.reduce_sum(
tf.square(ys - prediction),
axis=[1]
))
train_step:
with tf.name_scope('train'):
train_step = tf.train.GradientDescentOptimizer(0.1).minimize(loss)
tf.summary.FileWriter()将'绘画'出的图保存到一个目录中
第二个参数需要使用sess.graph,需要把这句话放在获取session的后面
graph是将前面定义的框架信息收集起来,然后放在logs/目录下面。
sess = tf.Session() # get session
# tf.train.SummaryWriter soon be deprecated, use following
writer = tf.summary.FileWriter("logs/", sess.graph)