Answered

Is random forest a classification ensemble methode?

I suggest you read the documentation on TreeBagger. "Treebagger grows the decision trees in the ensemble using bootstrap sampl...

Is random forest a classification ensemble methode?

I suggest you read the documentation on TreeBagger. "Treebagger grows the decision trees in the ensemble using bootstrap sampl...

4 years ago | 0

Answered

How to save file as pdf?

Well I don't think you can call saveas with an output argument which is why it gave you the error (see saveas documentation here...

How to save file as pdf?

Well I don't think you can call saveas with an output argument which is why it gave you the error (see saveas documentation here...

4 years ago | 0

Question

rng(s) takes previous seed instead of current one

I've encountered this problem when using functions in combination with user input and rng(s). To clarify my problem, I've got th...

4 years ago | 2 answers | 0

Answered

An iteration Code causing error

You say you're getting an error, but you didnt specify it in the description of your question. I ran the script and I assume you...

An iteration Code causing error

You say you're getting an error, but you didnt specify it in the description of your question. I ran the script and I assume you...

4 years ago | 0

Answered

How to get the columns of non zero matrix?

Your example is a bit vague, but if the main question is to find the non-zero values in the matrix, I would suggest using the fo...

How to get the columns of non zero matrix?

Your example is a bit vague, but if the main question is to find the non-zero values in the matrix, I would suggest using the fo...

4 years ago | 1

| accepted

Answered

Loop the Functions and store the values (placeholder) for Plotting

There are 2 ways to solve this Hold on and plot the result within the loop figure(); hold on; for t=1:0.1:10 [q_kp1,e]...

Loop the Functions and store the values (placeholder) for Plotting

There are 2 ways to solve this Hold on and plot the result within the loop figure(); hold on; for t=1:0.1:10 [q_kp1,e]...

4 years ago | 0

| accepted

Answered

How to evaluate an array filled with symbolic integrals?

I don't know if this is exactly what you're looking for, but I would do something like this clear all; syms ss; T = [2e-...

How to evaluate an array filled with symbolic integrals?

I don't know if this is exactly what you're looking for, but I would do something like this clear all; syms ss; T = [2e-...

4 years ago | 0

Answered

Uning Only Interger Values

You could use round(), floor(), ceil() to first round the floats to integers and then use unique() to remove possible duplicates...

Uning Only Interger Values

You could use round(), floor(), ceil() to first round the floats to integers and then use unique() to remove possible duplicates...

4 years ago | 0

| accepted

Answered

How can i stop the loop iteration using pushbutton callback in MATLAB GUI?

If you want to stop your iteration (for/while loop), you could try break instead of return.

How can i stop the loop iteration using pushbutton callback in MATLAB GUI?

If you want to stop your iteration (for/while loop), you could try break instead of return.

4 years ago | 0

Answered

Find the number of rows and columns of non-zero number from certain row.

You can do something like this [r, c] = find(Matr(1:6,:)); res = [r c] %res = % % 3 1 % 5 1 % 6 2...

Find the number of rows and columns of non-zero number from certain row.

You can do something like this [r, c] = find(Matr(1:6,:)); res = [r c] %res = % % 3 1 % 5 1 % 6 2...

4 years ago | 2

| accepted

Answered

HOW TO DISPLAY VALUE OF BARS USING BAR3

I would suggest you read this answer, which I think is pretty similar to your case.

HOW TO DISPLAY VALUE OF BARS USING BAR3

I would suggest you read this answer, which I think is pretty similar to your case.

4 years ago | 0

Answered

Write Large Video Files

You could've clarified on which lines your error(s) occured, but like the error says, it's most likely that that one of your fra...

Write Large Video Files

You could've clarified on which lines your error(s) occured, but like the error says, it's most likely that that one of your fra...

4 years ago | 0

| accepted

Answered

Can I build an app of game with Matlab? I am trying to apply what i know for now

Yes you can. Many examples of (simple) games and other "fun" applications can be found on <https://mathworks.com/matlabcentral/f...

Can I build an app of game with Matlab? I am trying to apply what i know for now

Yes you can. Many examples of (simple) games and other "fun" applications can be found on <https://mathworks.com/matlabcentral/f...

4 years ago | 1

Answered

missing frames in mp4

From the documentation on *VideoReader* v = VideoReader('stefan.mp4'); currAxes = axes; while hasFrame(v) v...

missing frames in mp4

From the documentation on *VideoReader* v = VideoReader('stefan.mp4'); currAxes = axes; while hasFrame(v) v...

4 years ago | 0

Answered

How to retrieve an unknown value from a matrix

Instead of det(A) = 0; %which should've created an error for you You could use *solve* like this to find _w_ syms ...

How to retrieve an unknown value from a matrix

Instead of det(A) = 0; %which should've created an error for you You could use *solve* like this to find _w_ syms ...

4 years ago | 0

Answered

Undefined operator '-' for input arguments of type 'cell'.

A question similar to this one was asked before and answered <https://mathworks.com/matlabcentral/answers/380097-undefined-opera...

Undefined operator '-' for input arguments of type 'cell'.

A question similar to this one was asked before and answered <https://mathworks.com/matlabcentral/answers/380097-undefined-opera...

4 years ago | 0

| accepted

Answered

How do i write a loop for x=1:10

Read this: <https://mathworks.com/help/matlab/ref/for.html>

How do i write a loop for x=1:10

Read this: <https://mathworks.com/help/matlab/ref/for.html>

4 years ago | 0

Answered

how can I display one of the images instead of displaying all? can anybody help me please

Well you've created a for-loop, so it shows all of the images in those figures. If you only want to display 1 specific image, yo...

how can I display one of the images instead of displaying all? can anybody help me please

Well you've created a for-loop, so it shows all of the images in those figures. If you only want to display 1 specific image, yo...

4 years ago | 0

| accepted

Answered

How to detect circles in the this image?

If you have the "Image Processing Toolbox", you can try *imfindcircles* & *viscircles* > <https://mathworks.com/help/images/ref/...

How to detect circles in the this image?

If you have the "Image Processing Toolbox", you can try *imfindcircles* & *viscircles* > <https://mathworks.com/help/images/ref/...

4 years ago | 0

Answered

Hey please assist me with plotting this function, not sure why im getting indexing error

First off % \/ you missed a * sign here y1=(3/10)*(1-exp(-6*t)(cos(sqrt(14*t))+(((3*sqrt(14))/7)*sin(...

Hey please assist me with plotting this function, not sure why im getting indexing error

First off % \/ you missed a * sign here y1=(3/10)*(1-exp(-6*t)(cos(sqrt(14*t))+(((3*sqrt(14))/7)*sin(...

4 years ago | 0

Answered

Problem using subs function

Even without being an expert in Matlab, the error should be pretty clear. Division by zero. This makes sense because *X*...

Problem using subs function

Even without being an expert in Matlab, the error should be pretty clear. Division by zero. This makes sense because *X*...

4 years ago | 0

Answered

How do I automatically run an .m file?

Make a function out of it... %% GraphFunction.m [outputarguments] = function GraphFunction(inputarguments) %leave empt...

How do I automatically run an .m file?

Make a function out of it... %% GraphFunction.m [outputarguments] = function GraphFunction(inputarguments) %leave empt...

4 years ago | 0

Answered

Can anybody help me for recognizing 0-9 printed digits?

I think <https://blogs.mathworks.com/loren/2015/08/04/artificial-neural-networks-for-beginners/ this post> is a good start

Can anybody help me for recognizing 0-9 printed digits?

I think <https://blogs.mathworks.com/loren/2015/08/04/artificial-neural-networks-for-beginners/ this post> is a good start

4 years ago | 0

| accepted

Answered

How to solve this weird problem in Matlab?

So I've tried this and got the same result. syms x3 a = 10e6; b = 10e6; x1 = 1.001; x2 = 0.9998; eqn = a*x...

How to solve this weird problem in Matlab?

So I've tried this and got the same result. syms x3 a = 10e6; b = 10e6; x1 = 1.001; x2 = 0.9998; eqn = a*x...

4 years ago | 0

Answered

How to plot a 3D image through its coordinates?

After a quick search, I found <https://mathworks.com/matlabcentral/fileexchange/1420-scatterbar3 this> useful function on FEX ca...

How to plot a 3D image through its coordinates?

After a quick search, I found <https://mathworks.com/matlabcentral/fileexchange/1420-scatterbar3 this> useful function on FEX ca...

4 years ago | 0

Answered

how to add date in the title ?

%get days only \/ output format t = char(datetime({'14-4-...

how to add date in the title ?

%get days only \/ output format t = char(datetime({'14-4-...

4 years ago | 0

| accepted

Answered

It says : Not a valid input. You must enter freshman, sophomore, junior, or senior. How can i fix it ?

Your variable *studentsYear* returns a value 1, 2, 3 or 4 as defined by the order in your menu. So you should use the integers 1...

It says : Not a valid input. You must enter freshman, sophomore, junior, or senior. How can i fix it ?

Your variable *studentsYear* returns a value 1, 2, 3 or 4 as defined by the order in your menu. So you should use the integers 1...

4 years ago | 0

Answered

"Array indices must be positive integers or logical values error" for histogram equalization implementation?

Normally when you get the error... Array indices must be positive integers or logical values error ...this should ring a...

"Array indices must be positive integers or logical values error" for histogram equalization implementation?

Normally when you get the error... Array indices must be positive integers or logical values error ...this should ring a...

4 years ago | 1

Answered

How to make a histogram plot show as many lines (bars) instead of one long line showing the high points?

Without looking at the code, I've already seen that you used `plot` instead of `histogram` or `bar` function. You see, when you ...

How to make a histogram plot show as many lines (bars) instead of one long line showing the high points?

Without looking at the code, I've already seen that you used `plot` instead of `histogram` or `bar` function. You see, when you ...

4 years ago | 0

| accepted

Answered

Hi, How can I plot the functions below on Matlab?

Because your question only contains formulas without any other information on what x or lambda are, I'll give you a standard ans...

Hi, How can I plot the functions below on Matlab?

Because your question only contains formulas without any other information on what x or lambda are, I'll give you a standard ans...

4 years ago | 1