Answered

merging date and time columns in a timetable

tt = table2timetable( YourTable, 'RowTimes', datetime(YourTable.Date) + duration(YourTable.Time) );

merging date and time columns in a timetable

tt = table2timetable( YourTable, 'RowTimes', datetime(YourTable.Date) + duration(YourTable.Time) );

environ 12 heures ago | 0

| accepted

Answered

Error while Diagonalizing the Matrix

Do not use P^(-1), which is also known as inv(P), if you can avoid doing so. The calculations have too much numeric difficulty. ...

Error while Diagonalizing the Matrix

Do not use P^(-1), which is also known as inv(P), if you can avoid doing so. The calculations have too much numeric difficulty. ...

environ 13 heures ago | 0

Answered

Downloading text files from Matlab causes them to be corrupted

Don't use Notepad. Use Notepad++ or any editor created in the last 20 years. Notepad is so old it is only able to properly handl...

Downloading text files from Matlab causes them to be corrupted

Don't use Notepad. Use Notepad++ or any editor created in the last 20 years. Notepad is so old it is only able to properly handl...

environ 14 heures ago | 0

| accepted

Answered

Don't simplify while using 'latex'

In some of the earlier releases, it was possible to ask to, for example, latex('3*x - 5*x') It would not be unreasonable to wa...

Don't simplify while using 'latex'

In some of the earlier releases, it was possible to ask to, for example, latex('3*x - 5*x') It would not be unreasonable to wa...

environ 15 heures ago | 0

| accepted

Answered

Not got the ordered student suite license

Today is a holiday in the USA; it might be a few days before your order is processed.

Not got the ordered student suite license

Today is a holiday in the USA; it might be a few days before your order is processed.

environ 17 heures ago | 0

| accepted

Answered

fast fourier tranform gives unequals amplitudes for frequencies with initially (before the fft) the same amplitude

sin(2*pi*(900*10^-9)^-1*t) (900*10^-9)^-1 is 1111111.11111111 Hz. But your sampling frequency is 32768. You have about 33.9 cyc...

fast fourier tranform gives unequals amplitudes for frequencies with initially (before the fft) the same amplitude

sin(2*pi*(900*10^-9)^-1*t) (900*10^-9)^-1 is 1111111.11111111 Hz. But your sampling frequency is 32768. You have about 33.9 cyc...

environ 17 heures ago | 0

Answered

How to create an underline in text

https://www.mathworks.com/matlabcentral/answers/95028-how-can-i-create-a-latex-table-from-a-matlab-array shows the latex code ...

How to create an underline in text

https://www.mathworks.com/matlabcentral/answers/95028-how-can-i-create-a-latex-table-from-a-matlab-array shows the latex code ...

environ 18 heures ago | 2

Answered

Is an infinite for loop infinite?

No, if you use for i=1:inf then MATLAB will stop after 9223372036854775806 iterations. That number is 2^63 - 2 On my system,...

Is an infinite for loop infinite?

No, if you use for i=1:inf then MATLAB will stop after 9223372036854775806 iterations. That number is 2^63 - 2 On my system,...

1 jour ago | 1

Answered

A year containing a date or not

year = 2050; month = 1; has_sunday30 = weekday(datetime(year, month, 30)) == 1;

A year containing a date or not

year = 2050; month = 1; has_sunday30 = weekday(datetime(year, month, 30)) == 1;

1 jour ago | 0

Answered

Undefined function or variable in my simple project

Your code only has alamatfile as a local variable to btnBrowse_Callback . You are not saving it for use in other functions. htt...

Undefined function or variable in my simple project

Your code only has alamatfile as a local variable to btnBrowse_Callback . You are not saving it for use in other functions. htt...

1 jour ago | 0

| accepted

Answered

Size mismatch (size [1 x 11] ~= size [1 x 10]).

i=2:length(z), That is 2:10 j=1:length(z), That is 1:10, which is one element longer than i. D(i-1)+D(j) D(i-1) becomes D(1...

Size mismatch (size [1 x 11] ~= size [1 x 10]).

i=2:length(z), That is 2:10 j=1:length(z), That is 1:10, which is one element longer than i. D(i-1)+D(j) D(i-1) becomes D(1...

1 jour ago | 0

| accepted

Answered

How to generate one random integer

The following generates integers natively. typecast(randi([0 255],1,8,'uint8'),'int64') The range is all possible integers bet...

How to generate one random integer

The following generates integers natively. typecast(randi([0 255],1,8,'uint8'),'int64') The range is all possible integers bet...

1 jour ago | 0

Answered

Help Needed for the following coding problem

z1_dot(:,i) = gamma*(1-z1(:,i))-kp*sumz1(:,i)+ki*sumw1(:,i); Those create numeric values that will be effectively constants aft...

Help Needed for the following coding problem

z1_dot(:,i) = gamma*(1-z1(:,i))-kp*sumz1(:,i)+ki*sumw1(:,i); Those create numeric values that will be effectively constants aft...

1 jour ago | 0

Answered

I keep getting a warning that says polynomial is badly conditioned when I use polyfit() to find the polynomial.

If your x values range from 0 to 2000, then you cannot numerically justify a degree 10 polynomial fit. Consider that for x = 1, ...

I keep getting a warning that says polynomial is badly conditioned when I use polyfit() to find the polynomial.

If your x values range from 0 to 2000, then you cannot numerically justify a degree 10 polynomial fit. Consider that for x = 1, ...

1 jour ago | 0

Answered

imagesc funtion axes configuration

xlim([0 50]); xticks(0:5:50); %ticks at 0, 5, 10, 15, and so on Warning: none of your image x data is as low as 50...

imagesc funtion axes configuration

xlim([0 50]); xticks(0:5:50); %ticks at 0, 5, 10, 15, and so on Warning: none of your image x data is as low as 50...

1 jour ago | 0

Answered

Convert Fortran code to Matlab

1 FORM='UNFORMATTED',ACCESS='DIRECT', There is no standard for the representation of DIRECT UNFORMATTED files in fortran. The m...

Convert Fortran code to Matlab

1 FORM='UNFORMATTED',ACCESS='DIRECT', There is no standard for the representation of DIRECT UNFORMATTED files in fortran. The m...

1 jour ago | 0

| accepted

Answered

How to matlab display matrix in different way

To display as an image on the screen, then you can do things like for K = 1 : 3; text(0.25*K, 0.5, string(B(:,K))); end If you...

How to matlab display matrix in different way

To display as an image on the screen, then you can do things like for K = 1 : 3; text(0.25*K, 0.5, string(B(:,K))); end If you...

1 jour ago | 0

Answered

getting error about wrong input argument

smote('C:\Users\Haleema\Desktop\skin matlab\orignal', 8, [327,514,1099,115,1113,6705,142]) Not a cell array of numeric values, ...

getting error about wrong input argument

smote('C:\Users\Haleema\Desktop\skin matlab\orignal', 8, [327,514,1099,115,1113,6705,142]) Not a cell array of numeric values, ...

1 jour ago | 0

| accepted

Answered

a matrix with a dirac delta function

Guessing: for j = 1:n + 1 u_approx_dirac(:,j) = u_approx(:,j) .* dirac(x - c - j*delta); end

a matrix with a dirac delta function

Guessing: for j = 1:n + 1 u_approx_dirac(:,j) = u_approx(:,j) .* dirac(x - c - j*delta); end

2 jours ago | 0

Answered

Variable TempData must be of size [25 33]. It is currently of size [31 24]. Check where the variable is assigned a value.

You cannot do that. After reducing by 1 row, your data ended up with 31 rows. Therefore it had 32 rows to start. After reducin...

Variable TempData must be of size [25 33]. It is currently of size [31 24]. Check where the variable is assigned a value.

You cannot do that. After reducing by 1 row, your data ended up with 31 rows. Therefore it had 32 rows to start. After reducin...

2 jours ago | 0

| accepted

Answered

Why is image colored instead of white?

You are comparing component by component. You are not testing whether any of the RGB components for a pixel are greater than zer...

Why is image colored instead of white?

You are comparing component by component. You are not testing whether any of the RGB components for a pixel are greater than zer...

2 jours ago | 0

| accepted

Answered

error in using latin hypercube sampling 'lhsnorm'

When your mu is a vector of length 4, then your cov must be a 4 x 4 positive definite (covariance) matrix, not a row vector.

error in using latin hypercube sampling 'lhsnorm'

When your mu is a vector of length 4, then your cov must be a 4 x 4 positive definite (covariance) matrix, not a row vector.

2 jours ago | 0

| accepted

Answered

For Loop using xlsread indexing

basenames = {'Red' 'Green' 'Orange' 'Purple' 'Pink'}; nbase = length(basenames); raw = cell(nbase, 1); for K = 1 : nbase ...

For Loop using xlsread indexing

basenames = {'Red' 'Green' 'Orange' 'Purple' 'Pink'}; nbase = length(basenames); raw = cell(nbase, 1); for K = 1 : nbase ...

2 jours ago | 0

| accepted

Answered

How do I create a table that I don't now the size of ahead of time?

https://www.mathworks.com/help/matlab/matlab_prog/add-and-delete-table-rows.html

How do I create a table that I don't now the size of ahead of time?

https://www.mathworks.com/help/matlab/matlab_prog/add-and-delete-table-rows.html

2 jours ago | 0

Answered

Convert a cell array using str2double

C={'9, 1., 0.514999986' '10, 0., 0.514999986' '11, 1., 0.75' '12, 0., ...

Convert a cell array using str2double

C={'9, 1., 0.514999986' '10, 0., 0.514999986' '11, 1., 0.75' '12, 0., ...

2 jours ago | 0

| accepted

Answered

How to delete the text of the previous state

function pushbutton2_Callback(hObject, eventdata, handles) [UElocation] = textread('observe/mdUELocationforGUI2.txt'); InputUE...

How to delete the text of the previous state

function pushbutton2_Callback(hObject, eventdata, handles) [UElocation] = textread('observe/mdUELocationforGUI2.txt'); InputUE...

2 jours ago | 1

| accepted

Answered

how to upload file type text and number in excel on uitable gui matlab

I already showed you that in https://www.mathworks.com/matlabcentral/answers/557590-data-string-unreadable-in-uitable-matlab#com...

how to upload file type text and number in excel on uitable gui matlab

I already showed you that in https://www.mathworks.com/matlabcentral/answers/557590-data-string-unreadable-in-uitable-matlab#com...

2 jours ago | 0

Answered

Nested loop error and saving result

You start i = 0. You do not increment i until after you store a value. So the first time through, you are storing into results(0...

Nested loop error and saving result

You start i = 0. You do not increment i until after you store a value. So the first time through, you are storing into results(0...

2 jours ago | 0

| accepted

Answered

discretize two arrays into 50x50 grid

N = 50; x_values = [71.2413900000000, 71.2336100000000, 71.2825000000000, 70.9786100000000, 69.1533400000000] y_va...

discretize two arrays into 50x50 grid

N = 50; x_values = [71.2413900000000, 71.2336100000000, 71.2825000000000, 70.9786100000000, 69.1533400000000] y_va...

2 jours ago | 0

| accepted