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@Miladiouss
Miladiouss / HSC-Cat-Selection.sql
Last active Jun 15, 2019
An HSC-PDR2 SQL query to extract RA, Dec, tract, patch of clean galaxies with a magnitude cut.
View HSC-Cat-Selection.sql
-- An HSC-PDR2 SQL query to extract RA, Dec, tract, patch of clean galaxies with a magnitude cut.
-- Useful Links:
-- /https://hsc-release.mtk.nao.ac.jp/hscMap-pdr2/app/#/?_=%7B%22view%22%3A%7B%22a%22%3A5.770914805732617,%22d%22%3A-0.019535944017082533,%22fovy%22%3A0.0002503311005562077,%22roll%22%3A0%7D,%22sspParams%22%3A%7B%22type%22%3A%22SDSS_TRUE_COLOR%22,%22filter%22%3A%5B%22HSC-I%22,%22HSC-R%22,%22HSC-G%22%5D,%22simpleRgb%22%3A%7B%22beta%22%3A22026.465794806718,%22a%22%3A1,%22bias%22%3A0.05,%22b0%22%3A0%7D,%22sdssTrueColor%22%3A%7B%22beta%22%3A26003.369421497522,%22a%22%3A1,%22bias%22%3A0.14439999999999995,%22b0%22%3A0%7D%7D%7D
-- https://hsc-release.mtk.nao.ac.jp/schema/#pdr2.pdr2_wide.forced
SELECT
object_id
, tract
@Miladiouss
Miladiouss / Ordinality.py
Created May 22, 2019
Calculate and appends ordinality to a dataframe
View Ordinality.py
def appendOrdinality(df, columns, ascending, strictlyIncreasing=False):
"""
Appends absolute and relative ordinality to a dataframe.
Oridinality is the normalized position of a row in a sorted dataframe.
df:
Pandas DataFrame
columns:
List of column names for to be used for sorting (e.g. ['prob_1'])
ascending:
@Miladiouss
Miladiouss / Stamp.py
Last active Mar 11, 2019
Print a stamp in Python with date, time, device name, and user name (e.g. 'Fri Mar 08 2019 at 00:41:02 on myPC by User')
View Stamp.py
from datetime import datetime
timeFormat = '%a %b %d %Y at %H:%M:%S'
import socket
deviceName = socket.gethostname()
import getpass
userName = getpass.getuser()
t1 = datetime.now()
print(t1.strftime(timeFormat) + ' on ' + deviceName + ' by ' + userName)
@Miladiouss
Miladiouss / GPU Detection Test in Python and PyTorch.py
Created Mar 8, 2019
Ensure Python and PyTorch can detect all the GPUs in your system.
View GPU Detection Test in Python and PyTorch.py
# GPU Detection Tests
from torch.cuda import device_count
import gpustat
print("""
If pytorch raises "RuntimeError: cuda runtime error (30)" after suspension,
run the following commands in linux terminal:
sudo rmmod nvidia_uvm
sudo rmmod nvidia
@Miladiouss
Miladiouss / logistic_map.py
Created Feb 22, 2019
Simple code for bifurcation of logistic map
View logistic_map.py
# Library import for plotting
import matplotlib.pyplot as plt
%matplotlib inline
# Define Logistic Map
def f(x, r):
return r * x * (1 - x)
# Define history and parameters
history = [0.5]
@Miladiouss
Miladiouss / Python_FITS_Handler.py
Last active Dec 7, 2018
Easy astronomy FITS file handling for Python. It includes easy cutout and save function. Additionally, a percentile normalization method is provided which is ideal for scaling FITS files to better visualization (similar to MinMax of DS9).
View Python_FITS_Handler.py
# IPython
from IPython.core.interactiveshell import InteractiveShell
InteractiveShell.ast_node_interactivity = "all"
from IPython import display
from scipy.misc import imshow, toimage, imsave, imread
import pandas as pd
import numpy as np
# AstroPy
@Miladiouss
Miladiouss / histogramTransform.py
Last active Mar 12, 2019
Image Histogram Transformation.
View histogramTransform.py
import numpy as np
from matplotlib import pyplot as plt
import torch
class HistogramTransform(object):
"""
Transforms the distribution of the input tensor to match that
of the list of template histograms corresponding to each channel.
@Miladiouss
Miladiouss / SimpleParticleSimulator.py
Last active Oct 2, 2018
A simple educational particle simulator that captures laws of classical mechanics. In the current state, it will plot an exaggerated perihelion precision of Mercury.
View SimpleParticleSimulator.py
# Author: Miladiouss (Milad Pourrahmani)
# Author's Website: Miladiouss.com
# Date: Sep 26, 2018
# Title: Simple Particle Simulator
# Description:
"""
I am hoping to assemble a series of brief educational computer programs that will capture the simplicity and elegance of laws of physics, both in nature and in apprehension.
This particular educational project (Simple Particle Simulator) is the first of this series. In less than 25 lines, plotting and comments aside, we can obtain the trajectory of a particle in ANY force field. The generated plot displays the simulated and exaggerated perihelion precision of Mercury.
@Miladiouss
Miladiouss / Select_CIFAR10_Classes.py
Last active May 31, 2019
Create PyTorch datasets and dataset loaders for a subset of CIFAR10 classes.
View Select_CIFAR10_Classes.py
import torchvision
import torchvision.transforms as transforms
from torchvision.datasets import CIFAR10
from torch.utils.data import Dataset, DataLoader
import numpy as np
# Transformations
RC = transforms.RandomCrop(32, padding=4)
RHF = transforms.RandomHorizontalFlip()
RVF = transforms.RandomVerticalFlip()
@Miladiouss
Miladiouss / index_of_which_bin.py
Last active Sep 13, 2018
Given a (flattened) list of lists, which element of which list does i correspond to?
View index_of_which_bin.py
def index_of_which_bin(bin_sizes, absolute_index, verbose=False):
"""
Given the absolute index, returns which bin it falls in and which element of that bin it corresponds to.
"""
# Which class/bin does i fall into?
accum = np.add.accumulate(bin_sizes)
if verbose:
print("accum =", accum)
bin_index = len(np.argwhere(accum <= absolute_index))
if verbose:
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