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@ptschandl
Last active January 18, 2024 19:00
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Extract all tensorboard events files to pandas dataframe
#!/usr/bin/env python3
'''
This script exctracts training variables from all logs from
tensorflow event files ("event*"), writes them to Pandas
and finally stores in long-format to a CSV-file including
all (readable) runs of the logging directory.
The magic "5" infers there are only the following v.tags:
[lr, loss, acc, val_loss, val_acc]
'''
import tensorflow as tf
import glob
import os
import pandas as pd
# Get all event* runs from logging_dir subdirectories
logging_dir = './logs'
event_paths = glob.glob(os.path.join(logging_dir, "*","event*"))
# Extraction function
def sum_log(path):
runlog = pd.DataFrame(columns=['metric', 'value'])
try:
for e in tf.train.summary_iterator(path):
for v in e.summary.value:
r = {'metric': v.tag, 'value':v.simple_value}
runlog = runlog.append(r, ignore_index=True)
# Dirty catch of DataLossError
except:
print('Event file possibly corrupt: {}'.format(path))
return None
runlog['epoch'] = [item for sublist in [[i]*5 for i in range(0, len(runlog)//5)] for item in sublist]
return runlog
# Call & append
all_log = pd.DataFrame()
for path in event_paths:
log = sum_log(path)
if log is not None:
if all_log.shape[0] == 0:
all_log = log
else:
all_log = all_log.append(log)
# Inspect
print(all_log.shape)
all_log.head()
# Store
all_log.to_csv('all_training_logs_in_one_file.csv', index=None)
@Siggi1988
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´Hallo theRealSuperMario,

how can i use your code tflogs2pandas.py to get the tensorboard data from a trained model.
I have the event data with the name "events.out.tfevents.1566371516.VTD2-PC".
But i do not know how i can set a path to this saved event data with your code.

@theRealSuperMario
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´Hallo theRealSuperMario,

how can i use your code tflogs2pandas.py to get the tensorboard data from a trained model.
I have the event data with the name "events.out.tfevents.1566371516.VTD2-PC".
But i do not know how i can set a path to this saved event data with your code.

The script was intended to be used on logfolders, not files.
However, I updated the script and it now supports your use case. You can now either run the script on a folder path and it converts all the
logs within that folder to a pandas dataframe (useful when you interrupt and resume training and create multiple log files)
OR you provide the explicit path to the log file and it converts it.

Therefore, you should now be able to run
tflogs2pandas.py xx/yy/events.out.tfevents.1566371516.VTD2-PC --write-csv --no-write-pkl -o converted

or

cd xx/yy tflogs2pandas.py . --write-csv --no-write-pkl -o converted
Feel free to create issues on the repo, so that I can keep track of what is missing.

@Siggi1988
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Siggi1988 commented Aug 30, 2019 via email

@Ademord
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Ademord commented Dec 15, 2021

@theRealSuperMario i tried your script but unfortunately it doesnt work on pytorch events, and for my TFlog files it only prints the headers ... :(

@j3soon
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j3soon commented May 10, 2022

@Ademord You can use tbparse instead, which handles both PyTorch and TensorFlow events.

@theRealSuperMario
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unfortunately I am not involved in TF and PT related projects anymore, so do not expect any updates on this. Sorry guys.

Feel free to modify the code in every way it becomes useful.

@aroraakshit
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thank you @theRealSuperMario !

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