python - No scalar data in tensorboard -


i have been reading tensorboard documentation scalars , have problem presenting in tensorboard.

i have pip install tensorflow in windows 10

my code looks this:

import tensorflow tf  = tf.constant(7, name='test_variable') tf.summary.scalar('variable', a)  tf.session() sess:     tf.summary.filewriter('my_folder', graph=sess.graph)     x = tf.global_variables_initializer()     sess.run(x)

i see there file in my_folder

in command prompt: tensorboard --logdir=my_folder --port 6006

out:

c:\users\mm>tensorboard --logdir=my_folder --port 6006 starting tensorboard b'54' @ http://desktop-9s2d9vf:6006 (press ctrl+c quit)

when open browser get:

no scalar data found.  probable causes: etc. etc.

you need run summary_op , pass result filewriter. example:

import tensorflow tf  = tf.constant(7, name='test_variable') tf.summary.scalar('variable', a) summary_op = tf.summary.merge_all()  tf.session() sess:     summary_writer = tf.summary.filewriter('/tmp/summary', graph=sess.graph)     x = tf.global_variables_initializer()     sess.run(x)     summary = sess.run(summary_op)     summary_writer.add_summary(summary)

from official documentation:

then, can run merged summary op, generate serialized summary protobuf object of summary data @ given step. finally, write summary data disk, pass summary protobuf tf.summary.filewriter.


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