| using Random | |
| using LinearAlgebra | |
| using Statistics | |
| using Distributions | |
| using DataFrames | |
| using OrderedCollections | |
| using SMM | |
| Random.seed!(1234) |
| id | male | income | size | choicecat | dealer1 | dealer2 | dealer3 | |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 46.7 | 2 | 3 | 18 | 8 | 5 | |
| 2 | 1 | 26.1 | 3 | 1 | 17 | 6 | 2 | |
| 3 | 1 | 32.7 | 4 | 1 | 12 | 6 | 2 | |
| 4 | 0 | 49.2 | 2 | 2 | 18 | 7 | 4 | |
| 5 | 1 | 24.3 | 4 | 1 | 10 | 7 | 3 | |
| 6 | 0 | 39 | 4 | 1 | 13 | 4 | 1 | |
| 7 | 1 | 33 | 2 | 1 | 24 | 7 | 4 | |
| 8 | 1 | 20.3 | 4 | 1 | 9 | 3 | 3 | |
| 9 | 1 | 38 | 3 | 2 | 14 | 10 | 2 |
| using DataFrames | |
| using HTTP | |
| using uCSV | |
| using JuMP | |
| using GLPK | |
| using Cbc | |
| # read in the data | |
| fname = "https://gist.githubusercontent.com/tyleransom/3738fa6cd1b3b5602e0621b08d068380/raw/5c4b139639d7b3c16716289b0232b8528d1bf494/mwe.csv" | |
| data = DataFrame(uCSV.read(IOBuffer(HTTP.get(fname).body), quotes='"', header=1)) |
| #!/bin/bash | |
| #Download source | |
| wget http://mirrors.concertpass.com/gcc/releases/gcc-4.7.2/gcc-4.7.2.tar.bz2 | |
| tar xvfj gcc-4.7.2.tar.bz2 | |
| cd gcc-4.7.2 | |
| ./contrib/download_prerequisites | |
| #Download and apply fix to be able to build GCC 4.7 with GCC 5.x |
| function normalMLE(b::Vector,Y::Array,X::Array,w::Array=ones(size(Y)),d::Array=ones(size(Y)),J::Int64=1) | |
| @assert size(Y,1)==size(X,2) "X and Y must be the same length" | |
| T = promote_type(eltype(b), eltype(X)) | |
| like = zero(T) | |
| @inbounds for i=1:size(Y,1) | |
| xb = zero(T) | |
| for j in 1:size(X,1) | |
| xb += X[j, i] * b[j] | |
| end |
| using BenchmarkTools | |
| using Optim, NLSolversBase | |
| function datagen(n=5500,k=13) | |
| b = rand(k) | |
| l = rand(2) | |
| x = randn(n,k) | |
| abil = randn(n,1) | |
| vabil = randn(n,1) | |
| sector = 1.0.*(rand(n,1).>0.8) |
| using Optim, NLSolversBase | |
| function datagen(n=5500,k=13) | |
| b = rand(k) | |
| l = rand(2) | |
| x = randn(n,k) | |
| abil = randn(n,1) | |
| vabil = randn(n,1) | |
| sector = 1.0.*(rand(n,1).>0.8) | |
| weight = rand(n,1) |
This consists of a "Rosetta Stone" of code syntax between R, Python, and Julia. The aim is to help those who are proficient in one language easily translate their code/understanding to another.
| Action | R code | Python code | Julia code |
|---|---|---|---|
| execute script from REPL | source('script.R') |
execfile('script.py') |
include("script.jl") |
| install a package | install.packages("pkg") |
[from OS terminal]: pip install pkg |
Pkg.add("pkg") |
| load a package | library(pkg) or require(pkg) |
import pkg |
using pkg |
| echo "Downloading gcc source files..." | |
| curl https://ftp.gnu.org/gnu/gcc/gcc-5.4.0/gcc-5.4.0.tar.bz2 -O | |
| echo "extracting files..." | |
| tar xvfj gcc-5.4.0.tar.bz2 | |
| echo "Installing dependencies..." | |
| yum install gmp-devel mpfr-devel libmpc-devel | |
| echo "Configure and install..." |
| Action | Notepad++ shortcut | Vim shortcut |
|---|---|---|
| Duplicate line | Ctrl+D |
yyp |
| Cut line | Ctrl+L |
dd |
| Move line up/down | Ctrl+Shift+<up/down> |
dd<k/j>p |
| Compare files | File compare plugin wizard | :vsplit <filename> or vimdiff file1 file2 (from command line) |
| Select all (from here to top/bottom of file) | Ctrl+Shift+<home/end> |
v<gg/G> |
| Select all (from here up/down one page) | Ctrl+Shift+ |
v Ctrl+ |