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[optgrowth_fast/ogm.py] Update np.random → Generator API #962

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[optgrowth_fast/ogm.py] Update np.random → Generator API #962

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9 changes: 4 additions & 5 deletions lectures/_static/lecture_specific/optgrowth_fast/ogm.py
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Expand Up @@ -14,23 +14,22 @@
class OptimalGrowthModel:

def __init__(self,
rng,

@kp992 kp992 Jul 31, 2026

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This is the changing the API of how the object is created. Since this code snippet might be directly used in the lecture, it can break that lecture. Maybe it would be good to keep the params of __init__ method as it and update the function code instead.

α=0.4,
β=0.96,
μ=0,
s=0.1,
grid_max=4,
grid_size=120,
shock_size=250,
seed=1234):
shock_size=250):

self.α, self.β, self.μ, self.s = α, β, μ, s

# Set up grid
self.grid = np.linspace(1e-5, grid_max, grid_size)

# Store shocks (with a seed, so results are reproducible)
np.random.seed(seed)
self.shocks = np.exp(μ + s * np.random.randn(shock_size))
# Store shocks (drawn from the passed-in rng, so results are reproducible)
self.shocks = np.exp(μ + s * rng.standard_normal(shock_size))


def f(self, k):
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