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## apply xgboost on otto data
## url : https://www.kaggle.com/c/otto-group-product-classification-challenge/data
## reference : https://www.analyticsvidhya.com/blog/2016/01/xgboost-algorithm-easy-steps/
install.packages("Matrix")
// 입출력 (11/11) : 곱셈
package playGround;
import java.util.*;
public class testJava{
public static void main(String[] args){
Scanner temp = new Scanner(System.in);
int[] result_arr = new int[3];
// Java의 정석 예제
// 2-4
package playGround;
public class testJava {
public static void main(String[] args) {
byte b = 1;
@JoeUnsung
JoeUnsung / dplyr_practice
Last active January 13, 2018 13:12
5 main verbs in dplyr
##
## dplyr practice of 5 core verbs ( select, mutate, filter, arrange, summarise )
##
## 1 select - 그냥 SQL select 처럼 쓰면 되나보다 범위 설정도 되는듯 1:4 이런식
buying_no_shopping %>%
select(ID, BIZ_UNIT)
custo %>%
@JoeUnsung
JoeUnsung / kakaoBlind
Created January 12, 2018 06:05
coding algorithm questions from kakao blind recruiting
############################
## 카카오 블라인드 알고리즘 문제 ##
###########################
## 1
## 2
## 3
@JoeUnsung
JoeUnsung / playGround.py
Created December 26, 2017 08:46
2017_12 ITWILL practice
# -*- coding: utf-8 -*-
"""
Created on Fri Dec 8 14:33:57 2017
@author: Administrator
"""
_myname='samsjang'
my_name='홍길동'
@JoeUnsung
JoeUnsung / EDA
Last active December 21, 2017 09:33
lpct
## 워킹디렉토리
getwd()
setwd("C:/Users/Administrator/Documents/GitHub/LPOINT/data")
setwd("D:/data")
install.packages("ggplot2","dplyr","tidyr","plotly")
install.packages("sqldf")
@JoeUnsung
JoeUnsung / BJ_JUDGE.py
Last active December 30, 2018 14:21
BAEK_JOON_ONLINE_JUDGE
# -*- coding: utf-8 -*-
"""
BJ Judge solution
"""
## 입출력 받아보기
## 11718
while True :
try :
@JoeUnsung
JoeUnsung / MC_R
Created November 14, 2017 05:09
MACHINE_LEARNING_IN_R
## MACHINE LEARNING IN R
## INDEX
## 1. KNN
## 2. 나이브 베이즈
## 3. 의사결정 트리
## 4. 서포트 벡터 머신
## 5. 회귀분석