Answered

How to plot graph with multiple values of x in a function

You need to use elementwise operations: count=0; for i=[3,5,7,10,20,100] count=count+1; x=linspace(-5,2,i); sub...

How to plot graph with multiple values of x in a function

You need to use elementwise operations: count=0; for i=[3,5,7,10,20,100] count=count+1; x=linspace(-5,2,i); sub...

17 jours ago | 1

| accepted

Answered

Matlab R2021a will not open after upgrade to MacOS Monterey

It looks from this chart of system requirements that R2021b is the only version to be compatible with Monterey.

Matlab R2021a will not open after upgrade to MacOS Monterey

It looks from this chart of system requirements that R2021b is the only version to be compatible with Monterey.

19 jours ago | 0

Answered

Natsort Rows using in program.

You need to ... go to the submission's page here click the Download button on the right-hand side of the page unzip the zip f...

Natsort Rows using in program.

You need to ... go to the submission's page here click the Download button on the right-hand side of the page unzip the zip f...

19 jours ago | 0

Answered

How to get the R (not R^2) from a linear regression 'poly1'?

Assuming you just want the correlation coefficient of the data, you don't need the model: corrcoef(x,y)

How to get the R (not R^2) from a linear regression 'poly1'?

Assuming you just want the correlation coefficient of the data, you don't need the model: corrcoef(x,y)

21 jours ago | 0

| accepted

Answered

Solve unknow array/matrix

% Input B = [3 0; 0 2]; C = [1 2 3; 4 5 6]; % Solve for A A = B\C % Verify B * A

Solve unknow array/matrix

% Input B = [3 0; 0 2]; C = [1 2 3; 4 5 6]; % Solve for A A = B\C % Verify B * A

22 jours ago | 1

Answered

Inverse of matrix is wrong?

Looks fine to me: val=zeros(1,583); j=[10,10E-1,10E-2,(9:-1:1)*(10^-3)]; val(1:12)=j; sum_val=sum(val); val_norm=val/sum_va...

Inverse of matrix is wrong?

Looks fine to me: val=zeros(1,583); j=[10,10E-1,10E-2,(9:-1:1)*(10^-3)]; val(1:12)=j; sum_val=sum(val); val_norm=val/sum_va...

25 jours ago | 2

Answered

Fit curve to a model problem

Personally, I would use fitnlm from the Statistics and Machine Learning Toolbox, but that is mainly due to familiarity, I suppos...

Fit curve to a model problem

Personally, I would use fitnlm from the Statistics and Machine Learning Toolbox, but that is mainly due to familiarity, I suppos...

25 jours ago | 0

| accepted

Answered

NaN (not a number) in numerical integration

Looks like your function becomes infinite. Here's a plot zooming in where it happens ep=0.2; u=0.2; lam=0.7; n=1000; f=@(al...

NaN (not a number) in numerical integration

Looks like your function becomes infinite. Here's a plot zooming in where it happens ep=0.2; u=0.2; lam=0.7; n=1000; f=@(al...

25 jours ago | 0

Answered

Pythagorean triples - wrong output in loop

You need R(I+1, :) = [a+b+c, a, b, c]; rather than R(a, :) = [a+b+c, a, b, c]; For sorting, after your run your algorithm, r...

Pythagorean triples - wrong output in loop

You need R(I+1, :) = [a+b+c, a, b, c]; rather than R(a, :) = [a+b+c, a, b, c]; For sorting, after your run your algorithm, r...

25 jours ago | 0

| accepted

Answered

How to avoid the mistake plot if one x value corresponding to two or more y values?

If the density of your points is high enough, you could consider plotting only the markers, and not the connecting lines, e.g. ...

How to avoid the mistake plot if one x value corresponding to two or more y values?

If the density of your points is high enough, you could consider plotting only the markers, and not the connecting lines, e.g. ...

25 jours ago | 0

Answered

Error in untitled (line 3)

The first argument to quad2d needs to be a function handle. I am not familiar with eprload, but its output looks like (x,y) dat...

Error in untitled (line 3)

The first argument to quad2d needs to be a function handle. I am not familiar with eprload, but its output looks like (x,y) dat...

26 jours ago | 0

| accepted

Answered

select a character value to display depending on the value entered

I believe this will do what you want. Define the cell array lt_list = {'Constant','Constant on below' ... etc then lt1 = lt...

select a character value to display depending on the value entered

I believe this will do what you want. Define the cell array lt_list = {'Constant','Constant on below' ... etc then lt1 = lt...

27 jours ago | 0

| accepted

Answered

How can I fit histogram?

Answering the first part of your question ... With probability normalization, the sum of the bin heights will be 1. With pdf no...

How can I fit histogram?

Answering the first part of your question ... With probability normalization, the sum of the bin heights will be 1. With pdf no...

30 jours ago | 1

| accepted

Answered

I'm trying to create a function and it's not working, I don't know what's wrong with it?

You need x=-2.*pi:0.01:2.*pi; instead of using semicolons for defining the vector.

I'm trying to create a function and it's not working, I don't know what's wrong with it?

You need x=-2.*pi:0.01:2.*pi; instead of using semicolons for defining the vector.

environ un mois ago | 0

Answered

function periodic in matlab

I think this does what you want: x = -3*pi : 0.01 : 3*pi; f = @(x) (mod(x+pi/2,pi) - pi/2).^2; figure plot(x,f(x))

function periodic in matlab

I think this does what you want: x = -3*pi : 0.01 : 3*pi; f = @(x) (mod(x+pi/2,pi) - pi/2).^2; figure plot(x,f(x))

environ un mois ago | 0

Answered

Highest row number in a table

% Example table n = 7; x = rand(n,1); y = rand(n,1); T = table(x,y); % Get number of rows MaxRows = size(T,1)

Highest row number in a table

% Example table n = 7; x = rand(n,1); y = rand(n,1); T = table(x,y); % Get number of rows MaxRows = size(T,1)

environ un mois ago | 0

| accepted

Answered

Interpretation of whisker in a boxplot for lognormal distribution

If I have done this correctly, it is about 92.2% ... % Calculation for normal distribution q3 = norminv(0.75,0,1); q1 = normi...

Interpretation of whisker in a boxplot for lognormal distribution

If I have done this correctly, it is about 92.2% ... % Calculation for normal distribution q3 = norminv(0.75,0,1); q1 = normi...

environ un mois ago | 0

| accepted

Answered

Looping through 4 Images that have fixed names

IMList="app.IM"+(1:4) creates a 1x4 string array, and then you can loop through that array to use the names.

Looping through 4 Images that have fixed names

IMList="app.IM"+(1:4) creates a 1x4 string array, and then you can loop through that array to use the names.

environ un mois ago | 0

Answered

Table Find Duplicate Rows (double, char, datetime)

You might need to share some more details about your table, but you should be able to use the unique function. % Make some pret...

Table Find Duplicate Rows (double, char, datetime)

You might need to share some more details about your table, but you should be able to use the unique function. % Make some pret...

environ un mois ago | 0

Answered

Histogram of overlaid standard normal draws

If you look carefully, you will notice that your bins are not at precisely the same locations. If you instead choose the exact b...

Histogram of overlaid standard normal draws

If you look carefully, you will notice that your bins are not at precisely the same locations. If you instead choose the exact b...

environ un mois ago | 1

| accepted

Answered

How do I sum the elements in a vector up to a specific value?

Here is one way: v = [2,3,2,2,1,3,1,10,3]; prize = sum(v(1:find(v==10,1)-1))

How do I sum the elements in a vector up to a specific value?

Here is one way: v = [2,3,2,2,1,3,1,10,3]; prize = sum(v(1:find(v==10,1)-1))

environ un mois ago | 0

Answered

How to add iteration in a string (make multiple strings using iterations without indexing) ?

Here is one way: for i = 1:4 matlab = sprintf("png%d",i) end Here is another, but wanted to show the first way, which ca...

How to add iteration in a string (make multiple strings using iterations without indexing) ?

Here is one way: for i = 1:4 matlab = sprintf("png%d",i) end Here is another, but wanted to show the first way, which ca...

environ un mois ago | 1

| accepted

Answered

Append rows to a starting row

It would be much easier for us to help if you uploaded your data file your code (instead of an image of your code) However, i...

Append rows to a starting row

It would be much easier for us to help if you uploaded your data file your code (instead of an image of your code) However, i...

environ un mois ago | 0

| accepted

Answered

Obtaining a logic vector (?) from a logic array

A = [0 0 0 0; 1 0 0 0; 1 1 0 1; 0 0 0 0; 0 1 1 0]; v = any(A,2)

Obtaining a logic vector (?) from a logic array

A = [0 0 0 0; 1 0 0 0; 1 1 0 1; 0 0 0 0; 0 1 1 0]; v = any(A,2)

environ un mois ago | 0

| accepted

Answered

I want to generate a matrix of random numbers between 0 and 2.5 with length=8 and the sum of generated numbers be 20

Use the Random Numbers with Fixed Sum submission from the File Exchange.

I want to generate a matrix of random numbers between 0 and 2.5 with length=8 and the sum of generated numbers be 20

Use the Random Numbers with Fixed Sum submission from the File Exchange.

environ un mois ago | 0

Answered

Exclude certain dates on x-axis using xlim or xtick?

One possible solution to this would be to use a tiledlayout to plot each day in its own subplot.

Exclude certain dates on x-axis using xlim or xtick?

One possible solution to this would be to use a tiledlayout to plot each day in its own subplot.

environ un mois ago | 0

| accepted

Answered

How to combine multiple plots using subplot?

Prior subplots that would be overlapped by later plots are deleted. Try this simple on your local machine. figure subplot(3,1,...

How to combine multiple plots using subplot?

Prior subplots that would be overlapped by later plots are deleted. Try this simple on your local machine. figure subplot(3,1,...

environ un mois ago | 0

Answered

How to tell matlab to, instead of throwing an error message, give me a Boolean (e.g., 0 means I get error) when I try to use Horner command

You could use a try-catch routine to catch the error.

How to tell matlab to, instead of throwing an error message, give me a Boolean (e.g., 0 means I get error) when I try to use Horner command

You could use a try-catch routine to catch the error.

environ un mois ago | 0

| accepted

Answered

write p-value into plot

You can use the text or annotation functions. The text function is easier, but the annotation function is more powerful.

write p-value into plot

You can use the text or annotation functions. The text function is easier, but the annotation function is more powerful.

environ un mois ago | 0

| accepted

Answered

Non linear regression: Matlab function similar to Excel solver ???

This very old question/answer from the Mathworks Support Team indicates that there is no MATLAB function for the generalized red...

Non linear regression: Matlab function similar to Excel solver ???

This very old question/answer from the Mathworks Support Team indicates that there is no MATLAB function for the generalized red...

environ un mois ago | 0