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why-not / pandas_data_reader_example.py
Created September 13, 2019 03:59
pandas data reader for stock data.
# command to install this library.
# conda install pandas-datareader
# example 1
import pandas_datareader as pdr
tsla = pdr.DataReader('tsla', data_source='google', start='2017-1-1')
# example 2
# calculates the trailing stop order price, can be used for weight loss like time series as well.
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why-not / aws-get_ip-update_sublime.py
Last active August 6, 2018 03:46
When you have a Sublime Text SFTP remote folder mapping to an Amazon AWS machine, everytime you reboot you have to update your Sublime SFTP config file so it knows where the folder/files are now. This ofcourse is massively tragic and should not be permitted in a civilized society. Hence this script. It even prints a connection string, so you can…
import json
import subprocess
"""EDIT FNAME TO UPDATE WITH YOUR LOCAL FILE PATH"""
FNAME = "/PATH/To/SUBLIME/SFTP/FILE/sftp-config.json"
def update_json_file(given_ip, filename):
jsonfile = open(filename, "r") # open the json file for reading
data = json.load(jsonfile) # read the json into the buffer
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why-not / vector_intersection.md
Created December 11, 2016 05:04 — forked from hellpanderrr/vector_intersection.md
Python find intersection of two vectors using matplotlib and numpy 
from numpy import dot,array,empty_like
from matplotlib.path import Path

def make_path(x1,y1,x2,y2):
    return Path([[x1,y1],[x1,y2],[x2,y2],[x2,y1]])

def perp( a ) :
    b = empty_like(a)
 b[0] = -a[1]
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why-not / gist:5379296
Last active December 16, 2015 04:48
Given a folder full of jpegs, this gist prints out if you have a face in it which is frontal (not profile), and its ratio between face size and image size. If it finds more than one face, it treats it as if no faces were found. (Use case: profile pictures)
import sys, os
from cv import *
from cv2 import *
import glob
def detect_face(image):
"""Converts an image to grayscale and prints the ratio of face to image if _one_ face is found"""
grayscale = CreateImage((image.width, image.height), 8, 1)
CvtColor(image, grayscale, CV_BGR2GRAY)
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why-not / README.md
Last active August 29, 2015 13:57 — forked from milroc/README.md

d3.unconf example gist. Fork it here.