R 활용 맞춤형 통계지원 소개

# R 활용 맞춤형 통계지원 소개
## CRScube 세미나
### 김진섭
### 차라투(주)

---

<div class="my-footer"><span><a href="https://www.zarathu.com">Zarathu Co.,Ltd</a>   
&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;
&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;
<a href="https://github.com/jinseob2kim">김진섭</a></span></div>

---
# Executive Summary

.large[
* [R](https://www.r-project.org/)로 통계분석 뿐 아니라 [논문](https://github.com/rstudio/rticles), [발표 슬라이드](https://github.com/yihui/xaringan), [홈페이지](https://github.com/rstudio/blogdown), [블로그](https://rstudio.github.io/distill/), [웹 어플리케이션](https://shiny.rstudio.com/)을 만들 수 있다. 
]

--
.large[
* 의학연구자들에게 [맞춤형 통계 웹](http://app.zarathu.com)을 제공하는 것을 업으로 삼고 있다.

* 범용으로 쓰일만한 것들을 [웹](http://app.zarathu.com)과 [R 패키지](https://github.com/jinseob2kim/jsmodule)로 배포한다.
]

--
.large[
* [심혈관중재학회](http://www.kscvi.org/new_ksic2015/community/main/kbc)와 계약, 1년간 [레지스트리](https://clinicaltrials.gov/ct2/show/NCT03068494) 연구에 대한 통계지원을 맡고 있다.

* [심평원](https://opendata.hira.or.kr/)/[보험공단](https://nhiss.nhis.or.kr/) 빅데이터 연구도 개별적으로 지원중.
]

---

# [R](https://www.r-project.org/)의 확장

---
# [R](https://www.r-project.org/)의 확장

[R](https://www.r-project.org/)은 이제 단순한 통계프로그램이 아님.

* [R Markdown](https://rmarkdown.rstudio.com/): 논문과 발표자료를 [R](https://www.r-project.org/) 에서 직접 만듦. [과거 정리 내용](https://blog.zarathu.com/posts/2019-01-03-rmarkdown/)

* [blogdown](https://github.com/rstudio/blogdown): 홈페이지도 만들 수 있음. 당사 홈페이지도 이것과 [distill](https://rstudio.github.io/distill/) 로 제작.

* [Shiny](https://shiny.rstudio.com/), [Shiny Server](https://www.rstudio.com/products/shiny/shiny-server/): 서버 구축하고 웹기반 앱을 만들 수 있음.

법인 설립 후 모든 작업에 [R](https://www.r-project.org/)을 이용함.

---
# 논문

[R](https://www.r-project.org/)에서 글, 그림, 테이블, 참고문헌까지 직접 작성. 
 
* [rticles](https://github.com/rstudio/rticles): 대부분 학술지의 템플릿을 포함.

[준비하던 박사논문](https://blog.zarathu.com/posts/2018-11-08-mdlm/)

---
# 발표 슬라이드

논문쓸 때 이용했던 R 코드 활용, 빠르게 발표 슬라이드 제작 가능.

* [기본 템플릿](https://rmarkdown.rstudio.com/lesson-11.html), [xaringan](https://github.com/yihui/xaringan) 패키지: 이 슬라이드도 [xaringan](https://github.com/yihui/xaringan)으로 제작.

---
# 홈페이지

[blogdown](https://github.com/rstudio/blogdown), [distill](https://rstudio.github.io/distill/): [깃허브](https://pages.github.com/) 통해 무료 웹호스팅 가능.

[홈페이지](https://github.com/zarathucorp/zarathu), [블로그](https://github.com/zarathucorp/blog)

---
# 웹 앱

[Shiny](https://shiny.rstudio.com/): [R](https://www.r-project.org/) 코드만으로 웹앱 제작

---
# 웹 서버

[Shiny Server](https://www.rstudio.com/products/shiny/shiny-server/): [Shiny](https://shiny.rstudio.com/)를 서버에서 구동.

[Zarathu app](http://app.zarathu.com)

---

# 맞춤형 서비스

---
# 맞춤형 웹

* 안과 
    + 시야 데이터 분석
    
    + 국민건강영양조사 백내장/안검하수 연구

* 내과 
    + 심혈관질환 위험 요인 생존분석
    
    + 심혈관 생리학 지표 계산 
    
    + 대장암 위험 요인 생존분석
    
    + 타 연구결과 정리

* 정신건강의학과
    + 외상후 스트레스 장애 네트워크 분석

---
# 시야데이터: 일반적인 통계

기술통계, 회귀/생존분석, 간단한 그림

[![](VF.png)](http://app.zarathu.com)

---
# 국민건강영양조사

표본조사데이터: [survey](http://r-survey.r-forge.r-project.org/survey/) 패키지 적용, 표본가중치 고려한 통계

[![](cataract.png)](http://app.zarathu.com)

---
# 심혈관질환 위험요인

반복측정: [geepack](https://cran.r-project.org/web/packages/geepack/index.html) 패키지 적용, 한 사람이 2개 이상의 심혈관 시술 받음.

[![](gee.png)](http://app.zarathu.com)

---
# 맞춤형 그림

논문 맞춤형 [그림](https://ildiczeller.com/2018/02/11/downloadable-ggplots-in-shiny/)과 [테이블](https://rstudio.github.io/DT/extensions.html)을 다운로드

]

---
# PPT에서 편집: `emf` 확장자

**PPT** 정확한 그림인식 위해 **emfPlus = F** 옵션 필수!

```r
library(devEMF)
emf("plot.emf", width = 7, height = 7, emfPlus = F)
ggplot(mtcars, aes(mpg, cyl)) + geom_point()
dev.off()
```

---
# 테이블 다운로드 예

[DT](https://rstudio.github.io/DT) 패키지의 `datatable` 함수

```r
datatable(
*   iris, extensions = 'Buttons', options = list(
*   dom = 'Bfrtip',  # Button, filter, processing, table, information, pagination                              
*   buttons = c('copy', 'csv', 'excel', 'pdf', 'print'),
    scrollX = T      # Scrolling X axis
  )
)
```

세부 `dom` 설정은 [여기](https://datatables.net/reference/option/dom)

---

<div id="htmlwidget-fb28c22512f11a65c74e" style="width:100%;height:auto;" class="datatables html-widget"></div>
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---
# 심혈관 생리지표 계산

최대최소값 표시 & [드래그](https://shiny.rstudio.com/gallery/plot-interaction-advanced.html)한 부분의 생리지표를 계산

[![](phys.png)](http://app.zarathu.com)

---
# PTSD 네트워크 분석

[qgraph](https://CRAN.R-project.org/package=qgraph) 패키지 이용. [colourpicker](https://github.com/daattali/colourpicker), [shinyWidgets](https://github.com/dreamRs/shinyWidgets) 패키지로 색상 선택 UI.

[![](qgraph.png)](http://app.zarathu.com)

---

# 범용 서비스

---
# 직접 데이터 업로드해서 이용

데이터 형태에 따라 3개로 따로 만듦. 기술통계, 회귀분석/생존분석, ROC 분석을 포함.

* [일반 데이터](http://app.zarathu.com/basic)

* [반복측정 데이터](http://app.zarathu.com/repeated) - 한 사람이 여러번 측정함, [GEE](https://en.wikipedia.org/wiki/Generalized_estimating_equation) 기반의 분석 필요.

* [서베이(survey) 데이터](http://app.zarathu.com/survey) - 샘플가중치 존재(ex: 국건영)

* [프로펜시티 점수 분석]((http://app.zarathu.com/ps)(experimental)

---
# R 패키지: [jsmodule](https://github.com/jinseob2kim/jsmodule)

자신의 컴퓨터에서 직접 수행할 수 있도록 [Rstudio Addin 포함한 패키지](https://github.com/jinseob2kim/jsmodule)로 배포, [CRAN](https://cran.r-project.org/package=jsmodule) 등록됨. 그 외, 생존분석 그림을 위한 [jskm](https://cran.r-project.org/package=jskm), 회귀분석 테이블을 만드는 [jstable](https://cran.r-project.org/package=jstable)

---
## 패키지 다운로드 수

[![](cran_down.png)](https://ipub.com/dev-corner/apps/r-package-downloads/)

---
# 개발 & 배포환경

개발, 맞춤형 앱

* 대학원 서버에 [Docker 이미지](https://cloud.docker.com/u/jinseob2kim/repository/docker/jinseob2kim/docker-rshiny) 설치하여 기생.
    + R, Rstudio server, shiny server와 자주 쓰는 패키지를 미리 설치.
    
--

범용 앱

* AWS에 [Docker swarm](https://github.com/jinseob2kim/swarm-setting) 환경 구축.
    + 부하정도에 따라 자동으로 인스턴스 추가/삭제. 현재 1대면 충분..
    
--

코드: [깃허브](https://github.com/jinseob2kim)

* R 패키지, Docker 이미지, 홈페이지/블로그는 public repository

* 맞춤형 앱은 private repository

[RUCK2018 발표자료](https://blog.zarathu.com/posts/2018-11-08-ruck2018/)

---

# 맞춤형 리포트 지원경험

---
# [레지스트리](http://pf.kakao.com/_XsuxgC/34113879) 연구 지원

데이터는 하나, 5개 연구주제

원하는 논문테이블, 그림을 알려주면 리포트 제작.

* 보안 문제로 **웹보다 리포트를 원함**.

---
# 테이블 예시

```r
library(knitr);library(kableExtra)
kable(mtcars[1:3, 1:6], row.names = T, caption = "Example", align = "c") %>% 
  kable_styling(full_width = F) %>%
  add_header_above(c("", "A" = 2, "B" = 4)) %>% 
  footnote(general = "Footnote")
```

<table class="table" style="width: auto !important; margin-left: auto; margin-right: auto;">
<caption>Example</caption>
 <thead>
<tr>
<th style="border-bottom:hidden" colspan="1"></th>
<th style="border-bottom:hidden; padding-bottom:0; padding-left:3px;padding-right:3px;text-align: center; " colspan="2"><div style="border-bottom: 1px solid #ddd; padding-bottom: 5px; ">A</div></th>
<th style="border-bottom:hidden; padding-bottom:0; padding-left:3px;padding-right:3px;text-align: center; " colspan="4"><div style="border-bottom: 1px solid #ddd; padding-bottom: 5px; ">B</div></th>
</tr>
  <tr>
   <th style="text-align:left;">   </th>
   <th style="text-align:center;"> mpg </th>
   <th style="text-align:center;"> cyl </th>
   <th style="text-align:center;"> disp </th>
   <th style="text-align:center;"> hp </th>
   <th style="text-align:center;"> drat </th>
   <th style="text-align:center;"> wt </th>
  </tr>
 </thead>
<tbody>
  <tr>
   <td style="text-align:left;"> Mazda RX4 </td>
   <td style="text-align:center;"> 21.0 </td>
   <td style="text-align:center;"> 6 </td>
   <td style="text-align:center;"> 160 </td>
   <td style="text-align:center;"> 110 </td>
   <td style="text-align:center;"> 3.90 </td>
   <td style="text-align:center;"> 2.620 </td>
  </tr>
  <tr>
   <td style="text-align:left;"> Mazda RX4 Wag </td>
   <td style="text-align:center;"> 21.0 </td>
   <td style="text-align:center;"> 6 </td>
   <td style="text-align:center;"> 160 </td>
   <td style="text-align:center;"> 110 </td>
   <td style="text-align:center;"> 3.90 </td>
   <td style="text-align:center;"> 2.875 </td>
  </tr>
  <tr>
   <td style="text-align:left;"> Datsun 710 </td>
   <td style="text-align:center;"> 22.8 </td>
   <td style="text-align:center;"> 4 </td>
   <td style="text-align:center;"> 108 </td>
   <td style="text-align:center;"> 93 </td>
   <td style="text-align:center;"> 3.85 </td>
   <td style="text-align:center;"> 2.320 </td>
  </tr>
</tbody>
<tfoot>
<tr><td style="padding: 0; border: 0;" colspan="100%"><span style="font-style: italic;">Note: </span></td></tr>
<tr><td style="padding: 0; border: 0;" colspan="100%">
<sup></sup> Footnote</td></tr>
</tfoot>
</table>

---
# 심평원/보험공단 연구 지원

인터넷 연결(X), 리포트로 만들어서 반출 신청해야됨.

---
# 전부 SAS 파일

`haven::read_sas` 로 읽어야 함.

```r
library(haven);library(dplyr)

## 월별 명세서 데이터
data.t20 <- list.files(pattern = "t20") %>% lapply(read_sas) %>% bind_rows

## 월별 x-ray 데이터
data.xray <- list.files(pattern = "t30") %>% 
  lapply(function(x){
  read_sas(x) %>% filter(substr(MCARE_DIV_CD_ADJ, 1, 3) == "G21") %>% select(CMN_KEY, MCARE_DIV_CD_ADJ)}) %>% 
  bind_rows 
```

---
# Executive Summary

* 의학연구자들에게 [맞춤형 통계 웹](http://app.zarathu.com)을 제공하는 것을 업으로 삼고 있다.

* 범용으로 쓰일만한 것들을 [웹](http://app.zarathu.com)과 [R 패키지](https://github.com/jinseob2kim/jsmodule)로 배포한다.

* [심혈관중재학회](http://www.kscvi.org/new_ksic2015/community/main/kbc)와 계약, 1년간 [레지스트리](https://clinicaltrials.gov/ct2/show/NCT03068494) 연구에 대한 통계지원을 맡고 있다.

* [심평원](https://opendata.hira.or.kr/)/[보험공단](https://nhiss.nhis.or.kr/) 빅데이터 연구도 개별적으로 지원중.
]

---

# END