# Analysis of Many vs Many

Multi-Regression Analysis is the method for one Y and many X. There are methods for many Y and many X.

The goal of this analysis is to understand the relationship in the simple way.

## Classification by the Type of Matrix

I classify the approaches of many vs many analyasis by the type of matrix. There are three types, A-B type, A-A Typeand AB-C type.

A-B type can be changed into A-A type. AB-C type can be changed into A-B type. This change is one of the hint of Linking different source data .

## Graph of A-A

In the study of network , A-A type is often used. View of Network is used.

Multi Dimensional Scaling is used if relationship is the number of distance.

## AHP

AHP uses the group of matrix. The main part of AHP uses A-B type data. Bu sub part uses A-A type data.

## Many Applications of A-B

Statistics uses A-B type as "A is the variable. B is the sample." Many methods of Multi-Variable Analysis and Data Mining start A-B type data.

In Text Mining , A is the word. And B is the text. And Co-occurrence is studied by A-B type data.

Q-Analysis is also used for A-B type.

NEXT AA type analysis