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17 lines
466 B
Python
17 lines
466 B
Python
import numpy as np
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def normalize(v, min_v, max_v):
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return (v - min_v) / (max_v - min_v)
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def as_batches(x, y, batch_size, shuffle=True):
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x_size = len(x)
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assert x_size == len(y)
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indices = np.random.permutation(x_size) if shuffle else None
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for offset in range(0, x_size - batch_size + 1, batch_size):
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excerpt = indices[offset:offset + batch_size] if shuffle else slice(offset, offset + batch_size)
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yield x[excerpt], y[excerpt]
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