MatthiasQuintern/teng-ml
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matthias@arch 2023-08-02 13:12:39 +02:00
parent 9aa1ffd7e0
commit ddeec83e31
1 changed files with 42 additions and 10 deletions
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52
teng_ml/data_preprocess.py
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@ -1,6 +1,8 @@
import pandas as pd
import numpy as np
import scipy.signal as signal
import matplotlib as mpl
mpl.use("TkAgg") # fixes focus issues for me
import matplotlib.pyplot as plt
from time import sleep
from random import choice as r_choice
@ -26,7 +28,7 @@ file = "/home/matth/Uni/TENG/teng_2/data/2023-06-28_foam_black_1_188mm_06V001.cs
class InteractiveDataSelector:
re_file = r'\d{4}-\d{2}-\d{2}_([a-zA-Z_]+)_([a-zA-Z0-9]+)_(\d+(?:\.\d+)?mm)_(\d+V)(\d+)\.csv'
re_file = r'\d{4}-\d{2}-\d{2}_([a-zA-Z0-9_]+)_([a-zA-Z0-9]+)_(\d+(?:\.\d+)?mm)_(\d+V)(\d+)\.csv'
re_index_group_nr = 5 # group number of the index part of the filename
"""
Go through all .csv files in a directory, split the data and exclude sections with the mouse, then write the sections as single files into a new directory
@ -57,12 +59,16 @@ class InteractiveDataSelector:
if not self._in_files:
raise ValueError(f"No matching files in 'in_dir' = '{in_dir}'")
self._history: list[tuple[str, list]] = [] # (in_file, [out_files...])
self._keep_index = keep_index
self.split_at_exclude = split_at_exclude
plt.ion()
self._fig, self._ax = plt.subplots()
mpl.rcParams['keymap.save'].remove('s') # s is used for split
mpl.rcParams['keymap.quit'].remove('q')
self._fig.canvas.mpl_connect("button_press_event", lambda ev: self._fig_on_button_press(ev))
self._fig.canvas.mpl_connect("key_press_event", lambda ev: self._fig_on_key_press(ev))
@ -72,8 +78,20 @@ class InteractiveDataSelector:
plt.pause(0.01)
def _set_titles(self):
help_str = "[(e)xclude, (S)plit, (w)rite]"
self._fig.suptitle(f"{help_str}\ncurret mode: {self._mode}")
help_str = "[(e)xclude, (s)plit, (w)rite+next, (U)ndo last file, (Q)uit]"
self._fig.suptitle(f"{help_str}\nuse left click to select, right click to undo\ncurret mode: {self._mode}")
def _undo_file(self):
if len(self._history) == 0:
print("Nothing to undo")
return
# delete written files
for outfile in self._history[-1][1]:
print(f"Deleting '{outfile}'")
os.remove(outfile)
self._in_files.insert(0, self._history[-1][0])
self._history.pop()
self._next_file()
def _next_file(self):
# runtime stuff
@ -82,7 +100,7 @@ class InteractiveDataSelector:
self._current_file = self._in_files.pop(0)
self._current_dataframe = pd.read_csv(os.path.join(self._in_dir, self._current_file))
self._current_array = self._current_dataframe.to_numpy()
# self._current_array = np.loadtxt(os.path.join(self._in_dir, self._current_file), skiprows=1, delimiter=",")
self._current_array = np.loadtxt(os.path.join(self._in_dir, self._current_file), skiprows=1, delimiter=",")
# plot stuff
@ -99,8 +117,6 @@ class InteractiveDataSelector:
self._mode = "exclude" # split or exclude
self._set_titles()
self._set_titles()
def _fig_on_button_press(self, event):
"""
left click: set split / exclude section (depends on mode)
@ -124,18 +140,30 @@ class InteractiveDataSelector:
def _fig_on_key_press(self, event):
"""
S: set split mode
s: set split mode
e: set exclude mode
w: write and got to next file
Q: quit all
"""
if event.key == 'S':
if event.key == 's':
self._mode = "split"
elif event.key == 'e':
self._mode = "exclude"
elif event.key == 'w':
self._save_as_new_files()
try:
self._next_file()
except IndexError:
print(f"All files processed.")
exit(0)
elif event.key == 'U':
self._undo_file()
elif event.key == 'Q':
print(f"Quitting before all files have been processed!")
exit(1)
self._set_titles()
def _update_lines(self):
# print(self._splits, self._excludes)
ymin, ymax = self._ax.get_ylim()
@ -206,6 +234,7 @@ class InteractiveDataSelector:
if len(new_frames[i]) == 0:
new_frames.pop(i)
self._history.append((self._current_file, []))
for frame in new_frames:
filename = self._get_next_filename()
pathname = os.path.join(self._out_dir, filename)
@ -215,6 +244,7 @@ class InteractiveDataSelector:
t_column_name = frame.columns[0]
frame[t_column_name] -= frame.iloc[0][t_column_name]
frame.to_csv(pathname, index=False)
self._history[-1][1].append(pathname)
print(f"Saved range of length {len(frame.index):04} to {pathname}")
@ -223,9 +253,11 @@ if __name__ == "__main__":
parser = argparse.ArgumentParser("data_preprocess")
parser.add_argument("in_dir")
parser.add_argument("out_dir")
parser.add_argument("--keep_index", action="store_true")
parser.add_argument("-i", "--keep_index", action="store_true")
parser.add_argument("-e", "--split_at_exclude", action="store_true")
ns = parser.parse_args()
selector = InteractiveDataSelector(ns.in_dir, ns.out_dir, ns.keep_index)
selector = InteractiveDataSelector(ns.in_dir, ns.out_dir, keep_index=ns.keep_index, split_at_exclude=ns.split_at_exclude)
selector.run()
exit(2) # selector should exit in _fig_on_key_press