Steven Bamford bamford
bamford
/ GCLF.ipynb
Last active
April 21, 2024 20:50
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| from numpy import pi, exp | |
| from scipy.special import gamma, gammaincinv, gammainc | |
| # Normalisation constant | |
| def b(n): | |
| return gammaincinv(2*n, 0.5) | |
| # Total luminosity of a 2D Sérsic profile | |
| def sersic_total_lum(Ie, re, n): | |
| bn = b(n) |
bamford
/ Format forum posts.ipynb
Created
October 13, 2022 13:51
Formatting Moodle forum posts from html export
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bamford
/ setup_tensorflow.py
Created
April 12, 2022 14:55
This function initialises TensorFlow to work in a friendly way in a shared, multi-GPU environment. It identifies the GPU with the most free RAM, selects it for use and sets TF to only claim the amount of RAM actually required to run the model, so other jobs can run on the same GPU. Uses `nvsmi`, which can be installed using pip.
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| import numpy as np | |
| import tensorflow as tf | |
| from tensorflow.config import list_logical_devices, list_physical_devices, set_visible_devices | |
| from tensorflow.config.experimental import set_memory_growth | |
| def setup_tensorflow(seed=None): | |
| try: | |
| import nvsmi |
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bamford
/ test_rebinning.ipynb
Last active
March 23, 2021 23:09
Test how to rebin contents of an image, without changing the image size
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bamford
/ test_stack_convolution.ipynb
Last active
March 23, 2021 16:42
Test application of a 2D convolution to a stack of multi-channel images
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bamford
/ gmm_tests.ipynb
Created
January 28, 2021 09:38
Testing that the likelihood of a GMM doesn't depend on the number of components
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