# Christos Tsallis

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Question

Confusion using confidence bounds

I used "fitlm" function on matlab, and when I tried to plot it "confidence bounds" showed up. I read that it is 95% confidence b...

1 year ago | 0 answers | 0

### 0

answersQuestion

How fitlm computes confidence bounds?

I have used fitmid=fitlm(x1,y1), fitmax=fitlm(x2,y2), fitmin=fitlm(x3,y3) in order to return a linear regression model for my da...

1 year ago | 1 answer | 0

### 1

answerQuestion

I get different regression coefficients, depending on how I do the binning. Which regression should I use?

I have some doubts about a linear regression model. To begin with, I have a table with 2 columns and a lot of rows. From this ta...

2 years ago | 0 answers | 0

### 0

answersQuestion

Wrong output using "find" while filtering a matrix

I am trying to filter some values of a matrix using an index. Given the value "i=0.10", and after that using "range_limits = [i ...

2 years ago | 1 answer | 0

### 1

answerQuestion

Return filtered values from a matrix

I have expressed my problem with the following image. I would like to implement exactly what I am saying on matlab but I am conf...

2 years ago | 1 answer | 0

### 1

answerQuestion

DC Motor Simulation on Simulink Using Datasheet's Specifications.

Hello everyone, I am trying to implement a dc motor simulation on simulink using real dc motor's specifications. Bellow there i...

3 years ago | 0 answers | 0

### 0

answersDC Motor Position Control using Potentiometer as a Feedback

Hello, I am facing some issues. At first, my PID’s output is the PWM signal which controls the speed of the dc motor. If this s...

3 years ago | 0

Question

DC Motor Position Control using Potentiometer as a Feedback

Hello, I am trying to control the position of a dc motor using a potentiometer as a feedback (on simulink). The idea is to inpu...

3 years ago | 2 answers | 0

### 2

answersQuestion

Simulink L298N DC Motor Driver Enable PIN Question

Hello, I am trying to change the speed of a small dc motor using the module L298N and Arduino UNO. I am using the enable pin (W...

3 years ago | 0 answers | 0

### 0

answersQuestion

Output variable of a function as an input of another function - Problem

Hello, I got two ".m" files, the first one is called "Ex_1" and the second one is called "Ex_2" as shown bellow. Output of Ex_1...

3 years ago | 1 answer | 0

### 1

answerQuestion

Multiple Sum of Series in a Variable - Syntax Problem

Hello, I got a problem expressing the equations bellow, in matlab. There is a dat variable which is a 7x2 table and has values ...

3 years ago | 1 answer | 0

### 1

answerQuestion

Addition of 2 matrices with different dimensions

Hello, If we want to add 2 matrices in maths, their dimensions must be the same. I was wondering how MATLAB can add x=[1;5;9] ...

3 years ago | 2 answers | 1

### 2

answersQuestion

How to set 2 constrain bounds at the same time?

Hello, let's say that we have -10<=X1<=10 and -30<=X2<=30. My question is, how can we express this in matlab or in the ga-Sol...

4 years ago | 1 answer | 0