**Markdown**은 텍스트 기반의 마크업언어로 2004년 존그루버에 의해 만들어졌으며 쉽게 쓰고 읽을 수 있으며 HTML로 변환이 가능하다. 특수기호와 문자를 이용한 매우 간단한 구조의 문법을 사용하여 웹에서도 보다 빠르게 컨텐츠를 작성하고 보다 직관적으로 인식할 수 있다. 마크다운이 최근 각광받기 시작한 이유는 깃헙(https://github.com) 덕분이다. 깃헙의 저장소Repository에 관한 정보를 기록하는 README.md는 깃헙을 사용하는 사람이라면 누구나 가장 먼저 접하게 되는 마크다운 문서였다. 마크다운을 통해서 설치방법, 소스코드 설명, 이슈 등을 간단하게 기록하고 가독성을 높일 수 있다는 강점이 부각되면서 점점 여러 곳으로 퍼져가게 된다.
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day1 |
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/* 사용자 정보 테이블 */ | |
create table tbl_yh_UserInfo | |
(userid varchar2(20), | |
userName varchar2(20), | |
accountNum varchar2(50), | |
PhoneNum varchar2(20), | |
testdate varchar2(30) default sysdate, | |
totalmoney NUMBER, | |
NumOfRA NUMBER | |
); |
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# 2016-03-28 Yunho Maeng | |
# Assignment 1 : Wine Quality | |
# if you didn't install package, you can use below code | |
# install.packages("ggplot2"); | |
# install.packages("dplyr"); | |
# install.packages("gridExtra") | |
# install.packages("GGally") | |
# install.packages("reshape2") | |
# install.packages("doBy") |
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# 2016-04-18 Yunho Maeng | |
# Assignment 2 : Wine Quality | |
# if you didn't install package, you can use below code | |
# install.packages("ggplot2"); | |
# install.packages("dplyr"); | |
# install.packages("gridExtra") | |
# install.packages("GGally") | |
# install.packages("reshape2") | |
# install.packages("doBy") |
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install.packages("tm") | |
library(tm) | |
#mobile | |
news <- read.csv("mobile2014.csv",stringsAsFactors=F) | |
news.corpus <- Corpus(VectorSource(news$x)) | |
news.corpus <- tm_map(news.corpus, stemDocument, language = "english") | |
tdm <- TermDocumentMatrix(news.corpus, | |
control = list(removeNumbers = T, |
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import tensorflow as tf | |
import numpy as np | |
# 데이터셋 | |
IRIS_TRAINING = "/Users/Yunho/Desktop/iris_data/iris_char_training.csv" | |
IRIS_TEST = "/Users/Yunho/Desktop/iris_data/iris_char_test.csv" | |
# 데이터셋을 불러옵니다. | |
#load_csv_with_header( |
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package yunho.com; | |
import java.util.ArrayList; | |
import java.util.HashMap; | |
import java.util.Iterator; | |
import java.util.LinkedList; | |
import java.util.Scanner; | |
public class Main { | |
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# Reference Address | |
# http://datascienceplus.com/k-means-clustering-in-r/ | |
# iris 데이터를 활용 | |
library(datasets) | |
head(iris) | |
# ggplot2로 시각화 | |
library(ggplot2) | |
ggplot(iris, aes(Petal.Length, Petal.Width, color = Species)) + geom_point() |
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