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how to do downsampling in python

Intempestive Al Dente answered on August 26, 2021 Popularity 8/10 Helpfulness 1/10

answer how to do downsampling in python

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how to do downsampling in python

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import xarray as xr
import numpy as np
import matplotlib.pyplot as plt

fig, (ax1, ax2, ax3) = plt.subplots(1, 3, figsize=(15,5))

# Create a 10x10 array of random numbers
a = xr.DataArray(np.random.rand(10,10)*100, dims=['x', 'y'])

# "Downscale" the array, mean of blocks of size (2x2)
b = a.coarsen(x=2, y=2).mean()

# "Downscale" the array, mean of blocks of size (5x5)
c = a.coarsen(x=5, y=5).mean()

# Plot and cosmetics
a.plot(ax=ax1)
ax1.set_title("Full Data")

b.plot(ax=ax2)
ax2.set_title("mean of (2x2) boxes")

c.plot(ax=ax3)
ax3.set_title("mean of (5x5) boxes")

Popularity 8/10 Helpfulness 1/10 Language python

Source: stackoverflow.com

Tags: python

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Contributed on Aug 26 2021

Intempestive Al Dente

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df_ham_downsampled = df_ham.sample(df_spam.shape[0])

Popularity 8/10 Helpfulness 1/10 Language python

Source: www.analyticsvidhya.com

Tags: python

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Contributed on Jan 01 2022

Colorful Copperhead

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how to do downsampling in python

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