Table of Contents

Enum MatrixLayout

Namespace
AiDotNet.Enums
Assembly
AiDotNet.dll

Specifies how data is organized in matrices when working with arrays of data.

public enum MatrixLayout

Fields

ColumnArrays = 0

Data is organized by columns, where each array represents a feature or variable.

For Beginners: In ColumnArrays layout, each array contains all values for a single feature.

Example: If measuring temperature in different cities over days:

  • First array: [NYC_Day1, NYC_Day2, NYC_Day3, ...]
  • Second array: [LA_Day1, LA_Day2, LA_Day3, ...]
  • Third array: [Chicago_Day1, Chicago_Day2, Chicago_Day3, ...]

This layout is often preferred when:

  • You need to analyze one feature across all data points
  • You're adding or removing features (columns) frequently
  • Working with certain statistical operations that operate on columns
RowArrays = 1

Data is organized by rows, where each array represents a single data point with multiple features.

For Beginners: In RowArrays layout, each array contains all features for a single data point.

Example: If measuring temperature in different cities over days:

  • First array: [NYC_Day1, LA_Day1, Chicago_Day1]
  • Second array: [NYC_Day2, LA_Day2, Chicago_Day2]
  • Third array: [NYC_Day3, LA_Day3, Chicago_Day3]

This layout is often preferred when:

  • You need to process one data point at a time
  • You're adding or removing data points (rows) frequently
  • Working with algorithms that process one sample at a time
  • Dealing with streaming data where each new data point has multiple features

Remarks

For Beginners: A matrix is simply a rectangular grid of numbers arranged in rows and columns. When working with data in programming, we need to specify how our data is organized.

Think of a spreadsheet:

  • You can organize your data by putting similar features in columns (ColumnArrays)
  • Or you can organize your data by putting each data point across a row (RowArrays)

For example, if you have data about people (height, weight, age):

ColumnArrays would look like:

  • First array: [height1, height2, height3, ...]
  • Second array: [weight1, weight2, weight3, ...]
  • Third array: [age1, age2, age3, ...]

RowArrays would look like:

  • First array: [height1, weight1, age1]
  • Second array: [height2, weight2, age2]
  • Third array: [height3, weight3, age3]

The choice of layout affects how you access and process your data, and different algorithms may expect data in different layouts.

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