matrix

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Android - getting the current rotation of a matrix

I need to be able to set the rotation of a matrix rather than add to it. I believe the only way to set the rotation is to know the current rotation of the matrix.[详细]

2023-04-01 22:54 分类：问答
how do can I show matrix values line per line

I have a matrix : 5x15 : for(int i=0;i<5;i++){ for(int j=0;j<15;j++){ String[][] Matrix = { { \"0\", \"0\", \"\", \"0\", \"5\", \"6\", \"\", \"\", \"55\", \"\", \"\", \"\", \"\", \"\" }, { \"17[详细]

2023-04-01 18:35 分类：问答
Extracting parts of a matrix based on the properties of the elements in the first column

I have some data consisting of 2 columns and thousands of rows. The first column is time data. How do I extract the part of the data wh开发者_JAVA技巧ere the values in the first column are between say[详细]

2023-04-01 16:28 分类：问答
How to generate a matrix through a loop?

I´m wondering how to get these in Matlab: a = 1 3 2 4 3 5 4 6 5 7 6 8 7 9 8 10 9 11 10 12 开发者_JAVA技巧 Really the structure I want to do has 2 thousand files. but I will start with something ea[详细]

2023-04-01 07:37 分类：问答
How to transform a data frame into a matrix with group values in rows and columns?

I ran a piece of code like this x = data.frame(numerator = 1:3, value = letters[1:3],value1=letters[4:6])[详细]

2023-04-01 07:10 分类：问答
Plot weighted frequency matrix

This question is related to two different questions I have asked previously: 1) Reproduce frequency matrix plot[详细]

2023-04-01 06:38 分类：问答
Generating an MVP for an object

So I\'m using GLM to generate a MVP for each specific model, like so: (Ignore the namespace errors, I am using namespace glm but sometimes I just like to write it in)[详细]

2023-04-01 05:12 分类：问答
Tensor contraction in Matlab [duplicate]

This question already has answers here: Closed 11 years ago. Possible Duplicate: MATLAB: How to vector-multiply two arrays of matrices?[详细]

2023-03-31 23:20 分类：问答
c++ template class's operators

I\'m teaching myself c++ by creating my own data structure class (a matrix, to be exact) and I\'ve changed it to a template class of type <T> from only using doubles. The overloaded matrix opera[详细]

2023-03-31 23:19 分类：问答
running a function on each cell in a matrix, knowing the index a cell, without using loops

I have a function F that receives an 2D index (i and j) and a constant array C. I want to run this function on each cell in a matrix, meaning - in the (i,j) cell I\'ll have the value F(i,j,C).[详细]

2023-03-31 22:36 分类：问答