The use of matrix and data.frame in R language - Code World

The use of matrix and data.frame in R language

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The use of matrix and data.frame in R language

R language data sorting (vector, matrix or list sorting): use one or more columns of data.frame for sorting, use all data columns for sorting, and all columns are sorted from left to right

R language recodes data or calculates and generates new data columns from existing data: use R built-in functions to recode data and generate new data columns (data.frame)

R language matrix, list, data frame

R language data.table import data combat: convert data.table data into data.frame data

Beginner R-data frame and R representation: the use of data.frame(), rbind(), cbind(), head(), tail(), apply() and other functions

R language compares two or more data.frames and finds rows that occur in more than one data.frame, or only in one data frame: write a custom function to find the uniqueness in each group in a data.frame appearing line

R language plotly visualization: draw scatter plot matrix (scatter plot matrix), use classification categories to represent the color of data points in scatter plot matrix (scatter plot matrix)

Learning language scratch R (c) - "Matrix (the Matrix)" Data Structure

R Language - data frame

R语言数据格式转换函数、数据类型判断函数（numeric、character、vector、matrix、data.frame、factor、logical）、R语言数据格式类型转换

Extraction with R date data frame corresponding to the language year (matrix switch list)

R language learning record: matrix matrix function

[R] by deleting data.frame column name specified in column

R similarity matrix mixed language attributes: Data Mining Experiment (a)

R base, Advanced - matrix data frame operation

R language study notes (6) - "R language primer" (operator, index, data editor, matrix calculation)

Data Structure - Matrix - sparse matrix (Java language)

Use of Data Matrix code

R language vector operations, indexing, matrix indexing

Why use R language?

Why use R language?

Comparing two or more data.frames in R and finding rows that occur in more than one data.frame, or only in one data frame: writing a custom function to find duplicates in different groupings in a data.frame OK

R language medical data analysis practice (2) operation of data frame

R, Python, Scala and Java, which big data programming language to use

C language - use the matrix LU decomposition method to find the inverse and determinant

How to use R language in java

How to use fread in R language?

Confusion matrix (confusionMatrix)-based on R language output understanding

R language-extraction of confusionMatrix confusion matrix results

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