Correspondence analysis applied to microarray data
نویسندگان
چکیده
منابع مشابه
Correspondence analysis applied to microarray data.
Correspondence analysis is an explorative computational method for the study of associations between variables. Much like principal component analysis, it displays a low-dimensional projection of the data, e.g., into a plane. It does this, though, for two variables simultaneously, thus revealing associations between them. Here, we demonstrate the applicability of correspondence analysis to and ...
متن کاملGrade correspondence analysis applied to contingency tables and questionnaire data
An alternative approach methodology for Correspondence Analysis is presented. This approach, called Grade Correspondence Analysis (GCA), utilizes Spearman's rho to detect underlying associations and trends. Two examples are presented using: (1) a contingency table (Heuer's suicide data) with cause of death, gender, and age; and (2) a survey questionnaire (data matrix) concerning employment, per...
متن کاملGene set analysis methods applied to chicken microarray expression data
BACKGROUND Gene set analysis is considered to be a way of improving our biological interpretation of the observed expression patterns. This paper describes different methods applied to analyse expression data from a chicken DNA microarray dataset. RESULTS Applying different gene set analyses to the chicken expression data led to different ranking of the Gene Ontology terms tested. A method fo...
متن کاملStability-based cluster analysis applied to microarray data
This paper studies the estimation of the number of clusters using the so-called stability-based approach, where clusters obtained for two subsets of the data set are compared via a similarity index and the decision regarding the number of clusters is taken based on the statistics of the index over randomly selected subsets. We introduce a new similarity index , and analyze the consistency of th...
متن کاملFactorial Correspondence Analysis Applied to Citation Contexts
In this paper, we analyze citation contexts and characterize the different sections of scientific articles in terms of the verbs that appear in citation contexts. We have performed Factorial Correspondence Analysis (CA) using the four sections of the IMRaD (Introduction, Methods, Results and Discussion) structure as categories. Our dataset contains about 80,000 research articles published in th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2001
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.181597298