'Backward selection' diaporamas de présentation

Presentation and Data http:// www.lisa.stat.vt.edu ?Short Courses ?Regression Analysis Using JMP

Presentation and Data http:// www.lisa.stat.vt.edu ?Short Courses ?Regression Analysis Using JMP ?Download Data to Desktop. Regression Analysis Using JMP. Mark Seiss , Dept. of Statistics. Presentation Outline. Simple Linear Regression Multiple Linear Regression

623 views • 49 slides

Feature Selection, Feature Extraction

Feature Selection, Feature Extraction. Need for reduction. Classification of leukemia tumors from microarray gene expression data 1 72 patients (data points) 7130 features (expression levels of different genes) Text mining, document classification features are words

1.88k views • 42 slides

Forward Selection

Forward Selection. The Forward selection procedure looks to add variables to the model. Once added, those variables stay in the model even if they become insignificant at a later step. Backward Selection. The Backward selection procedure looks to remove variables from the model.

918 views • 36 slides

Stepwise Regression

Stepwise Regression. SAS. Download the Data. http://core.ecu.edu/psyc/wuenschk/StatData/StatData.htm. 3.2 625 540 65 2.7 4.1 575 680 75 4.5 3.0 520 480 65 2.5 2.6 545 520 55 3.1 3.7 520 490 75 3.6 4.0 655 535 65 4.3 4.3 630 720 75 4.6 2.7 500 500 75 3.0 and so on.

579 views • 30 slides

Statistics 350 Lecture 26

82 views • 8 slides