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Libardo Lopez Libardo1

  • Bogotá, Colombia
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Libardo1 / README.md
Created May 29, 2016 16:17 — forked from nbremer/.block
Radar Chart Redesign

A new design for a radar chart in D3.js. You can read more about in on the blog I wrote "A different look for the D3 radar chart"

An older version of a radar chart that I adjusted two years ago when I was just starting to learn D3.js can be found here

import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
import os
def computeCost(X, y, theta):
inner = np.power(((X * theta.T) - y), 2)
return np.sum(inner) / (2 * len(X))
def gradientDescent(X, y, theta, alpha, iters):
import tensorflow as tf
tf.add(1, 2)
# 3
tf.sub(2, 1)
# 1
tf.mul(2, 2)
import tensorflow as tf
# create a constant 2X2 matrix
tensor_1 = tf.constant([[1., 2.], [3.,4]])
tensor_2 = tf.constant([[5.,6.],[7.,8.]])
# create a matrix multiplication operation
output_tensor = tf.matmul(tensor_1, tensor_2)
@Libardo1
Libardo1 / churn.sql
Created September 27, 2016 12:40 — forked from jdwyah/churn.sql
WITH monthly_usage AS (
SELECT
user_id,
date_part('month', age(created_at, '1970-01-01')) +
12 * date_part('year', age(created_at, '1970-01-01')) AS time_period
FROM orders
WHERE order_state = 'completed'
GROUP BY 1, 2
ORDER BY 1, 2)
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@Libardo1
Libardo1 / gabor_filter.py
Created January 25, 2017 21:27 — forked from kendricktan/gabor_filter.py
Gabor kernel filter example in python
import numpy as np
import cv2
# cv2.getGaborKernel(ksize, sigma, theta, lambda, gamma, psi, ktype)
# ksize - size of gabor filter (n, n)
# sigma - standard deviation of the gaussian function
# theta - orientation of the normal to the parallel stripes
# lambda - wavelength of the sunusoidal factor
# gamma - spatial aspect ratio
# psi - phase offset
@Libardo1
Libardo1 / bf4plots.ipynb
Created February 14, 2017 23:24 — forked from NelsonMinar/bf4plots.ipynb
Battlefield 4 plots, an IPython experiment
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Libardo1 / get_mnist_data_tf.py
Created February 18, 2017 20:04 — forked from MartinThoma/get_mnist_data_tf.py
Get MNIST data for TensorFlow example
"""Functions for downloading and reading MNIST data."""
from __future__ import print_function
import gzip
import os
import urllib
import numpy
SOURCE_URL = 'http://yann.lecun.com/exdb/mnist/'
def maybe_download(filename, work_directory):
@Libardo1
Libardo1 / imgcmp.py
Created February 21, 2017 14:51 — forked from attilaolah/imgcmp.py
Fast image comparison with Python
import math
import Image
import Levenshtein
class BWImageCompare(object):
"""Compares two images (b/w)."""
_pixel = 255