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Created February 23, 2022 00:14 — forked from krishnadey30/LeetCodeQuestions.md
Curated List of Top 75 LeetCode
Last active January 20, 2022 12:16
brunch_r_xgboost
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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")
Last active September 22, 2020 12:15
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 // 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];
Last active September 11, 2020 13:56
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 // Java의 정석 예제 // 2-4 package playGround; public class testJava { public static void main(String[] args) { byte b = 1;
Last active January 13, 2018 13:12
5 main verbs in dplyr
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 ## ## 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 %>%
Created January 12, 2018 06:05
coding algorithm questions from kakao blind recruiting
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 ############################ ## 카카오 블라인드 알고리즘 문제 ## ########################### ## 1 ## 2 ## 3
Created December 26, 2017 08:46
2017_12 ITWILL practice
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 # -*- coding: utf-8 -*- """ Created on Fri Dec 8 14:33:57 2017 @author: Administrator """ _myname='samsjang' my_name='홍길동'
Last active December 21, 2017 09:33
lpct
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 ## 워킹디렉토리 getwd() setwd("C:/Users/Administrator/Documents/GitHub/LPOINT/data") setwd("D:/data") install.packages("ggplot2","dplyr","tidyr","plotly") install.packages("sqldf")
Last active December 30, 2018 14:21
BAEK_JOON_ONLINE_JUDGE
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 # -*- coding: utf-8 -*- """ BJ Judge solution """ ## 입출력 받아보기 ## 11718 while True : try :
Created November 14, 2017 05:09
MACHINE_LEARNING_IN_R
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 ## MACHINE LEARNING IN R ## INDEX ## 1. KNN ## 2. 나이브 베이즈 ## 3. 의사결정 트리 ## 4. 서포트 벡터 머신 ## 5. 회귀분석