I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!
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library(dplyr) | |
library(tidyr) | |
library(magrittr) | |
library(ggplot2) | |
"http://academic.udayton.edu/kissock/http/Weather/gsod95-current/NYNEWYOR.txt" %>% | |
read.table() %>% data.frame %>% tbl_df -> data | |
names(data) <- c("month", "day", "year", "temp") | |
data %>% | |
group_by(year, month) %>% |
Roll your own iPython Notebook server with Amazon Web Services (EC2) using their Free Tier.
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library(shiny) | |
library(ggplot2) | |
function(input, output) { | |
dataset <- reactive({ | |
diamonds[sample(nrow(diamonds), input$sampleSize),] | |
}) | |
output$plot <- renderPlot({ |
Using Python's built-in defaultdict we can easily define a tree data structure:
def tree(): return defaultdict(tree)
That's it!
Stratasan is a Nashville-based company that provides intelligence on healthcare markets to hospital strategists, physician offices, community care experts, and others. We aggregate healthcare data, curate it, and provide reports and tools that aid healthcare decision-making. As an example, we give guidance to our clients looking to place a new acute care clinic.
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class MyCallable(object): | |
def __init__(self, urlparts, callable): | |
self.urlparts = urlparts | |
self.callable = callable | |
def __call__(self, **kwargs): | |
print kwargs | |
print self.urlparts | |
def __getattr__(self, name): | |
# Return a callable object of this same type so that you can just keep | |
# chaining together calls and just adding that missing attribute to the |
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#!/usr/bin/env python | |
""" | |
Use pip to get a list of local packages to check against one or more package | |
indexes for updated versions. | |
""" | |
import pip | |
import sys, xmlrpclib | |
from cStringIO import StringIO | |
from distutils.version import StrictVersion, LooseVersion |
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