Created
November 21, 2016 19:26
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Plotting and smoothing
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import csv | |
from datetime import datetime | |
import matplotlib.pyplot as plt | |
from scipy.signal import savgol_filter | |
# Input is a csv file in the following form | |
# the value to be plotted, date (timestamp), .... whatever | |
def plot_times(infile): | |
times = [] | |
dates = [] | |
reader = csv.reader(infile, delimiter=',', quotechar='|') | |
for r in reader: | |
times.append((int(r[0]) / 1000) / 60) | |
ustamps.append(int(r[1])) | |
dates.append(datetime.fromtimestamp( | |
int(r[1])).date()) | |
times_smooth = savgol_filter(times, 99, 1) | |
plt.plot(dates, times) | |
plt.plot(dates, times_smooth, color='red') | |
plt.show() |
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