ageek

What

Roll your own iPython Notebook server with Amazon Web Services (EC2) using their Free Tier.

What are we using? What do you need?

• An active AWS account. First time sign-ups are eligible for the free tier for a year
• One Micro Tier EC2 Instance
• With AWS we will use the stock Ubuntu Server AMI and customize it.
• Anaconda for Python.
• Coffee/Beer/Time

ageek

import numpy as np
from scipy import linalg
from sklearn.utils import array2d, as_float_array
from sklearn.base import TransformerMixin, BaseEstimator


class ZCA(BaseEstimator, TransformerMixin):

def __init__(self, regularization=10**-5, copy=False):
        self.regularization = regularization

ageek

def sigmoid(X):
    '''Compute the sigmoid function '''
    #d = zeros(shape=(X.shape))

    den = 1.0 + e ** (-1.0 * X)

    d = 1.0 / den

    return d

ageek

library(dplyr)

#train <- read.csv("train.csv")
test <- read.csv("test_v2.csv")

last_items <- test %.%
  group_by(customer_ID) %.%
  filter(shopping_pt==max(shopping_pt)) %.%
  mutate(plan=paste(A,B,C,D,E,F,G,sep='')) %.%
  select(customer_ID,plan)

ageek

## Correlation matrix with p-values. See http://goo.gl/nahmV for documentation of this function
cor.prob <- function (X, dfr = nrow(X) - 2) {
  R <- cor(X, use="pairwise.complete.obs")
  above <- row(R) < col(R)
  r2 <- R[above]^2
  Fstat <- r2 * dfr/(1 - r2)
  R[above] <- 1 - pf(Fstat, 1, dfr)
  R[row(R) == col(R)] <- NA
  R
}

ageek

# quick example of creating a plot like that at the link below
# http://www.visualisingdata.com/index.php/2015/01/make-grey-best-friend/

x<-1:10
y<-x^2
z<-x
radius<-x/5
dat<-data.frame(x=x, y=y, z=z, radius=radius)
ggplot(dat, aes(x,y))+ 
  geom_ribbon(aes(ymin=y-radius, ymax=y+radius), alpha=0.5, fill="grey", color="grey", size=1)+

ageek

py_dict = readLines('python_dictionary.txt')
# e.g.
#{"cat_name": "Ella", "dwell_status": "tree_dweller", "coat_color": "gray, white, orange", "is_from_hell": "Y"}
#{"cat_name": "Billie", "dwell_status": "bush_dweller", "coat_color": "gray, white", "is_from_hell": "N"}

dict_to_df = function(dict) {
  
  require(plyr)
  df = data.frame()
  df_temp = list()

ageek

[user]
	name = Pavan Kumar Sunkara
	email = [email protected]
[core]
	editor = vim
	whitespace = fix,-indent-with-non-tab,trailing-space,cr-at-eol
	excludesfile = ~/.gitignore
[sendemail]
	smtpencryption = tls
	smtpserver = smtp.gmail.com

ageek

This gist provides sample code for using Nokia 5110 displays using the ATtiny85 template library. For a full description of code behind this please see this post on The Garage Lab website.

To use this sample code first clone the ATtiny85 template repository and then replace 'main.c' with the source provided here.

ageek

/*

Original code come from Adafruit GPS logger shield kit - v1.1
http://www.adafruit.com/products/98
http://www.ladyada.net/make/gpsshield/download.html
All of this example Arduino code is Public Domain. Enjoy!
http://en.wikipedia.org/wiki/GNU_General_Public_License

Modified by DWHacks for use with U-blox PCI-5S.
Info about U-blox PCI-5S here: http://emerythacks.blogspot.ca/2013/01/u-blox-pci-5s-cheap-gps-module-for-your.html