# Hidd_1

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Question

Non Linear Regression for a surface

I have the following matrices, and their dimensions: X (1*249 double) Y (1*20 double) Z (20*249 double) I know that the rela...

1 year ago | 1 answer | 0

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answerQuestion

Select a columns of a Matrix using Selector in Simulink

I am having the following simulink model, which contain a Matrix A [3×6] of doubles, and I would like have a selector that selec...

1 year ago | 1 answer | 0

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answerQuestion

Implement the Software Architecture in MATLAB\SIMLUNK and convert it to C

Hey! I would like to ask, how do you guys implement the software Architecture in MATLAB\SIMULINK, and how to translate it to a ...

1 year ago | 1 answer | 0

### 1

answerQuestion

reference a Mathworks Algorithm found in the forum

I found an interesting algorithm in the forum, and I would like to build on it my own algorithm, and I am wondering how to cite ...

1 year ago | 1 answer | 0

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answerQuestion

Fit nonlinear regression model

I am trying the fit the eclosed data, for the X-Axis: x = 0:1:248; I enclosed the data for the Y-axis. (Each row is a curve, ...

1 year ago | 1 answer | 0

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answerQuestion

Optimization to fit a curve to data (problem with the InitialPopulationMatrix)

I am triying to fit the eclosed data using optimoptions, and for that I used the gradient descent. This is the objective functi...

1 year ago | 1 answer | 0

### 1

answerQuestion

Relation or Pattern between curves

I am having the following curves, and I am trying to find a relation between them, or a statistical factor to use it so i can pr...

1 year ago | 2 answers | 0

### 2

answersQuestion

Bode diagram : Warning: Error occurred while evaluating listener callback.

I wrote the following code, I am gettign this error: Warning: Error occurred while evaluating listener callback. Here is the c...

1 year ago | 1 answer | 0

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answerSolved

Calculate a Damped Sinusoid

The equation of a damped sinusoid can be written as |y = A.ⅇ^(-λt)*cos(2πft)| where |A|, |λ|, and |f| ...

2 years ago

Solved

Rescale Scores

Each column (except last) of matrix |X| contains students' scores in a course assignment or a test. The last column has a weight...

2 years ago

Solved

Calculate Inner Product

Given two input matrices, |x| and |y|, check if their inner dimensions match. * If they match, create an output variable |z|...

2 years ago

Question

Passing Data between two Apps

I have created two apps (App1, and statitics), and I would like to pass the following data from the first one into the second on...

2 years ago | 1 answer | 0

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answerQuestion

Incorrect number of input arguments

I wrote the following code, and I got a message error regarding the input arguments: lgd_1 = legend(app.UIAxes,'dTdhw(°C)','VDH...

3 years ago | 2 answers | 0

### 2

answersSolved

Plot Damped Sinusoid

Given two vectors |t| and |y|, make a plot containing a blue ( |b| ) dashed ( |--| ) line of |y| versus |t|. Mark the minimum...

3 years ago

Solved

Calculate BMI

Given a matrix |hw| (height and weight) with two columns, calculate BMI using these formulas: * 1 kilogram = 2.2 pounds * 1 ...

3 years ago

Solved

Sum of series I

What is the sum of the following sequence: Σ(2k-1) for k=1...n for different n?

3 years ago

Solved

Solve a System of Linear Equations

Example: If a system of linear equations in x₁ and x₂ is: 2x₁ + x₂ = 2 x₁ - 4 x₂ = 3 Then the coefficient matrix (A) is: 2 ...

3 years ago

Solved

Laws of motion 4

Given the initial velocity 'u', final velocity 'v' and acceleration 'a', find the distance travelled.

3 years ago

Solved

Is this triangle right-angled?

Given any three positive numbers a, b, c, return true if the triangle with sides a, b and c is right-angled. Otherwise, return f...

3 years ago

Question

Open file selection dialog, and get an error message when no file is selected

Hey Everybody! I wrote the following code, for a GUI app: [file,filepath,filter] = uigetfile({'*.xlsx'},'Select the Excel file...

3 years ago | 1 answer | 0

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answerQuestion

Statistical calculation from the plot function

I created a plot function in an App: like this plot(app.UIAxes,app.Time,app.Tempreture_In,app.Time,app.Tempreture_out) I wou...

3 years ago | 1 answer | 0

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answerQuestion

Drop Down Button (App Designer) return index of repeated elements

I would like to select an option on the drop down button, the problem is that the options are reapeated! Thus I would like that...

3 years ago | 1 answer | 0