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fixed typo in comment

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Kashif Rasul 2022-06-24 10:44:52 +02:00 committed by GitHub
parent bd9c9fbfbe
commit c3c1bdf8e2
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1 changed files with 2 additions and 2 deletions
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src/diffusers/schedulers/scheduling_ddpm.py
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@ -92,9 +92,9 @@ class DDPMScheduler(SchedulerMixin, ConfigMixin):
alpha_prod_t = self.alphas_cumprod[t]
alpha_prod_t_prev = self.alphas_cumprod[t - 1] if t > 0 else self.one
# For t > 0, compute predicted variance βt (see formala (6) and (7) from https://arxiv.org/pdf/2006.11239.pdf)
# For t > 0, compute predicted variance βt (see formula (6) and (7) from https://arxiv.org/pdf/2006.11239.pdf)
# and sample from it to get previous sample
# x_{t-1} ~ N(pred_prev_sample, variance) == add variane to pred_sample
# x_{t-1} ~ N(pred_prev_sample, variance) == add variance to pred_sample
variance = (1 - alpha_prod_t_prev) / (1 - alpha_prod_t) * self.betas[t]
if variance_type is None: