Domanda

How to run a code several times using a for loop

Hello, I have the following problem: I want to run the following code for 50 interations, and saving the values of matrix A1, B...

oltre 2 anni fa | 2 risposte | 0

Domanda

Select the correct data from matrix

Hello. I have the following problem: For a product I predict the prices it will have the next day (24 prices). I use 5 models to...

oltre 2 anni fa | 1 risposta | 0

Domanda

Data comparison and selection the smallest

Hello. I have a matrix A which has size of 24X5. I want each row in matrix A to be selected the smallest and stored in matrix B....

oltre 2 anni fa | 2 risposte | 0

Domanda

Create a matrix through replacement, from another matrix

Hello. I have a matrix A (5X5) and I want to create a matrix B (of the same size as A) and its values come from matrix A. Also, ...

oltre 2 anni fa | 1 risposta | 0

Domanda

Create a matrix with values in a specific position from another matrix

Hello, I have a matrix with hourly prices for a product. That, is 24 prices for one day. Also, these prices are for one month. I...

oltre 2 anni fa | 1 risposta | 0

Domanda

Forecasting Prices with Learning Machine

Hello. I am new to Learning machine development. In short, I want to do the following: I have some product prices for 216 and I ...

oltre 2 anni fa | 0 risposte | 0

Domanda

Price forecasting using ARIMA Model

Hello, I have this theme: I want to forecast market prices using ARIMA models. For example I have ARIMA1(1,1,4), ARIMA2(0,1,1) ...

oltre 2 anni fa | 1 risposta | 0

Domanda

Remove random columns from a big matrix?

Hello, I have this issue: I want to randomly remove 3000 columns from a big matrix with size 1600X8500. below I have a code I w...

oltre 3 anni fa | 2 risposte | 0

Domanda

How will I reduce the time it takes to calculate data?

Hello. In an excel file I put some data and then I creared a big matrix (1200X2000) on Matlab based on this data. Then I took ...

oltre 3 anni fa | 1 risposta | 0

Domanda

finding data from a big matrix

Hello, I have the followin question: I have a big matrix A (1140X837).With help of Matlab I calculated the following data [av ...

oltre 3 anni fa | 0 risposte | 0

Domanda

Calculate a matrix through a for loop

Hello, I have the following code to which I am trying to find variable B. Veriable B is a matrix that will include the data in ...

oltre 3 anni fa | 0 risposte | 0

Domanda

How do we create weighted average for a matrix?

Hello, I have a matrix e.g [ 5 3 3 1 3 4 5 2 5 0 0 0 3 4 5 2] For this matrix I have to make a weighted average fo...

oltre 3 anni fa | 0 risposte | 0

Domanda

Select random data from a matrix and replace it

Hello, I have the following problem: I have a matrix e.g 1 0 1 0 1 1 1 1 0 0 1 1 1 1 1 1 1 0 0 1 and I try to do this: Whe...

oltre 3 anni fa | 3 risposte | 0

Domanda

Data Processing of a Matrix

Hellow, I have stuck to a point of the code I am writing. In summary, there is a matrix (ReviewMatrix) that carries data from a...

oltre 3 anni fa | 0 risposte | 0

Domanda

How do I create a new matrix using other matrix data?

Hellow, The following code reads as follows: First, a matrix is imported from the reviewMatrix.mat file. ReviewMatrix ia a matr...

oltre 3 anni fa | 0 risposte | 0

Domanda

Excel file with three columns and compare the data

Hellow, I have an excel file with three columns (visitors,lacation,score). I want to find out which visitors went to the same l...

oltre 3 anni fa | 1 risposta | 0