• Journal of the Korean Data and Information Science Society
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• 제15권2호
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• pp.317-329
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• 2004

The Web log has caught much attraction for tracing of customer activity. So many researches have been carried on it. As a result, Web log analysis solutions has been developed and launched lately. It has been in the spotlight to the website administrators and people in practical marketing business. In this paper, we made an analysis on the various behavior patterns of customers in cooperation with SAS/AF and SCL modules, based on development of GUI from SAS package for disposal of statistical data.

• 한국인구학
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• 제23권1호
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• pp.197-215
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• 2000

이 논문에서는 선형·비선형 성장곡선모형의 종류와 특성을 살펴보고, 이들을 비교·검토하고, 모형선호기준 통계량에 입각하여 추정결과를 비교한다. 또한 최종사용자 환경을 위한 SAS/AF로 구현한 성장곡선모형에 의한 인구예측시스템을 소개한다.

• Communications for Statistical Applications and Methods
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• 제8권2호
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• pp.507-514
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• 2001

In recent years, the development and the embodiment of information analysis system has been sprightly carried out in several fields of study. In this study, as and extension of these studies, we develop a system for multivariate analysis which might be widely used in social and natural sciences. This multivariate analysis system is developed by using multivariate analysis procedures in SAS/STAT software. Also, the system supply users with he environment of GUI(Graphical User Interface), which is constructed with AF(application frame) and SCL(screen control language) of SAS software, in order to help users to use the system with easy.

• 응용통계연구
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• 제13권2호
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• pp.297-306
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• 2000

행렬도(biplots)란 행과 열을 그래프에 동시에 나타내어 이들의 관계를 살피려는 다변량 그래픽분석 기법이다. 이를 활용하기 위해서 사용자들이 수작업으로 일일이 프로그래밍해야 했던 불편함엣 벗어나 GUI(Graphic User Interface)환경으로 메뉴에 의해서 사용하기에 편한 행렬도 시스템의 개발을 소개한다. 구체적으로 본 시스템의 개발 방법, 과정, 구성 그리고 예제를 통해 실행결과를 확인하고 결론을 통해 추후 연구과제와 발전방향을 제시한다.

• 중소기업융합학회논문지
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• 제6권3호
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• pp.71-77
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• 2016

이 논문에서는 소아청소년 암환자 중 치료종료 2년 이상의 환자 293명를 대상으로 소아와 청소년을 구분해 삶의 질을 분석하였다. 기존 연구에서는 소아청소년 암환자의 삶의 질을 평가하기 위해서 소아암 환자와 환자의 부모가 느끼는 삶의 질을 비교하는 것이 대부분이었고, 소아청소년을 하나의 그룹으로 평가하는 것이 일반적이었다. 그러나 소아청소년 암환자의 폭넓은 연령을 하나의 기준으로 평가하는 것은 문제가 있다. 따라서 이 논문에서는 언어 이해정도에 따라 연령을 10-12세와 13-20세의 연령의 두 그룹으로 분류하고 한국어로 작성된 KMMQL-AF 설문지를 이용하였다. 2011년 7월 15일에서 2012년 1월 31일까지 전국 10대 지역 병원(국립암센터, 서울대학교병원, 한양대학교병원, 화순전남대학교병원, 충북대학교병원, 충남대학교병원, 전북대학교병원, 경상대학교병원, 원자력병원, 이화여대부속목동병원)에서 정확한 자료수집을 위해 전문가가 동반해 심층면접을 통해 추출된 서술적 조사연구이다.

• Toxicological Research
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• 제20권2호
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• pp.89-100
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• 2004

The comet assay (also called the single-cell gel electrophoresis assay) has been widely used for detecting DNA damage and repair in individual cells. Since the conventional methods of evaluating comet assay data using frequency statistics are unsatisfactory we developed a new quantitative measure of DNA damage/repair that is based on all information residing in the dose/time-response curves of a comet experiment. Blood samples were taken from 25 breast cancer patients before undergoing radiotherapy. The comet assay was performed under alkaline conditions using isolated lymphocytes. Tail DNA, tail length, tail moment and tail inertia of the comet were measured for each patient at four doses of $\gamma$-rays (0, 2, 4 and 8 Gy) and at four time points after irradiation (0, 10, 20 and 30 min) using 100 cells each. The resulting three-dimensional dose-time response surface was modeled by multiple regression, and the second derivative, termed 2D, on dose and time was determined. A software module was programmed in SAS/AF to compute 2D values. We applied the new method successfully to data obtained from cancer patients to be assessed for their radiation sensitivity. We computed the 2D values for the four damage measures, i.e., tail moment, tail length, tail DNA and tail inertia, and examined the pairwise correlation coefficients of 2D both on the log scale and the unlogged scale. 2D values based on tail moment and tail DNA showed a high correlation and, therefore, these two damage measures can be used interchangeably as far as DNA repair is concerned. 2D values based on tail inertia have a correlation profile different from the other 2D values which may reflect different facets of DNA damage/repair. Using the dose-time response surface, other statistical models, e.g., the proportional hazards model, become applicable for data analysis. The 2D approach can be applied to all DNA repair measures, Le., tail moment, tail length, tail DNA and tail inertia, and appears to be superior to conventional evaluation methods as it integrates all data of the dose/time-response curves of a comet assay.