Ridwan Alam

Last seen: quasi 3 anni fa | Attivo dal 2019

Statistiche

All

Content Feed

Risposto
Time Series Forecasting Using Deep Learning (LSTM)
Yes. Please follow the examples here: https://www.mathworks.com/help/deeplearning/ref/nnet.cnn.layer.sequenceinputlayer.html h...

circa 4 anni fa | 0

Risposto
Perform FFT from imported excel data. Help please
Signal = D(:,2); RD = str2double(R) is making a matrix of NaNs. So, you can use D instead of R.

circa 4 anni fa | 0

Risposto
find a set of data in an array
idx = find(A~=0); B = A(idx); idx and B have the same size and order. I believe this is what you are looking for?

circa 4 anni fa | 0

Risposto
How can I select rows in an array based on the values in the first column of another array?
new_array = second_array(first_array,:)

circa 4 anni fa | 1

| accettato

Risposto
adding different number of columns to specific row
Try using the table join() method: https://www.mathworks.com/help/matlab/ref/table.join.html Example: M_obs = readtable('book...

circa 4 anni fa | 0

Risposto
How to display all values of an iteration?
for i = 1:100 xc = (x1 + x2)/2; if f(x1)*f(xc)<0 x2 = xc; else x1 = xc; end disp(['x1...

circa 4 anni fa | 1

| accettato

Risposto
How to replace a rectangle with another rectangle?
I tried this, it worked for me: r = rectangle('FaceColor', [0.2 0.2 0.7]); r.FaceColor = [0.2 0.2 0.2];

circa 4 anni fa | 0

Risposto
Changing array size of user input data
myCell = {}; k = 0; for i = 1:5:number k = k + 1; myCell{k,1} = i:min(i+4,number); end writecell(myCell,fullfile(...

circa 4 anni fa | 0

| accettato

Risposto
Problem with function handle for Basis function in fitrgp
load(fullfile(matlabroot,'examples','stats','gprdata2.mat')) In this case, your x is n x 1; hfcn returns H, which has size n ...

circa 4 anni fa | 0

| accettato

Risposto
Errors using function and fsolve
% *Set universal constants:* global surr sink sigma sigma = 5.67e-8; % Stefan-Boltzmann constant (in W/m^2/K^4) % % *S...

circa 4 anni fa | 0

Risposto
Linear regression outputs (regstat function)
The first one is for the constant coefficient (aka intercept term). I believe you have only one predictor x, then your model is...

circa 4 anni fa | 0

| accettato

Risposto
T-wave on ECG
If I understood right what you are asking, you need to find the peaks for P,Q,R,S, and T using findpeaks(). https://www.mathwo...

oltre 4 anni fa | 0

Risposto
making dataset 3D data function
Let's assume your variables are named as 'input01', 'input02', ... 'input48'. my3Ddata = []; myMeanData = []; varnames = wh...

oltre 4 anni fa | 0

| accettato

Risposto
How can I save a image from imshow into a cell array ?
I don't think you need the imshow(). imshow() is only used to show the image, and it returns an image object, which is not norma...

oltre 4 anni fa | 0

| accettato

Risposto
Piecewise function of y
It's a bit hard to understand the issue here. Please let me know if this is not what you are looking for: plot(C2(20:90), heigh...

oltre 4 anni fa | 0

| accettato

Risposto
Replacing NaN with blanks in a matrix
I believe you are looking for fillmissing() or rmmissing(): https://www.mathworks.com/help/matlab/ref/fillmissing.html https:/...

oltre 4 anni fa | 0

Risposto
linear regression of time series with time index
If you have a fixed equation like the one provided, I believe you are looking for parameter estimation methods to find beta_0, b...

oltre 4 anni fa | 0

Risposto
please explain the solution
K = round(Tuq'*eye(5)*Tuq,2); M = [ m 0 0 ; 0 m 0 ; 0 0 I ]; eq = det(K*k-w1*M); s = solve(eq,w1); will prevent sym() to con...

oltre 4 anni fa | 0

| accettato

Risposto
FFT filter on voice file help please
There are multiple ways you can filter these data. You can use bandpass, high or low pass filters, or any other specific filters...

oltre 4 anni fa | 0

Risposto
Fourier Transform in Simulink
Change the Samples per frame property on the Sine Wave block: https://www.mathworks.com/help/dsp/ug/transform-time-domain-d...

oltre 4 anni fa | 0

Risposto
Digital signal processing LINEAR AND CIRCULAR CONVOLUTION length-N sequences error
x = [2+3j 3-1j -1+2j 3j 2+4j]; https://www.mathworks.com/help/matlab/ref/j.html

oltre 4 anni fa | 0

| accettato

Risposto
How to detect variations in data?
Depends on how complex of a solution you are looking for. There are algorithms for change point detection that you can try. htt...

oltre 4 anni fa | 1

Risposto
Which Right Eigenvector to report?
I assume you meant 'right' as opposed to 'left' eigen vectors. [V,D] = eig(A); % to get left eigenvectors, [V,D,W] = eig(A), he...

oltre 4 anni fa | 0

Risposto
Creating a table for the "For-loop command" results:
Even though there are many more efficient ways to do this, this is a simple addition to your code: clear clc n=input('Enter t...

oltre 4 anni fa | 0

Risposto
How to extract sub-matrices from a big matrix?
% to find the matched date and store the that day along with the following 5 days (120 hours) in another matrix. for n = 1:siz...

oltre 4 anni fa | 1

| accettato

Risposto
How to change nonzero values to 1 within a table?
tempTable = table2array(myTable); tempTable(tempTable~=0)=1; myTable = array2table(tempTable);

oltre 4 anni fa | 0

| accettato

Risposto
Replace NaN's in a table - I need some help
T2.col1(ismissing(T2.col1)) = "Behezad"; T2.col2(ismissing(T2.col2)) = "RAD"; T2.col3(ismissing(T2.col3)) = "MORD";

oltre 4 anni fa | 1

Risposto
Adding values of Columns in a matrix to create another matrix (for loop)
dim=size(E_min,2); % dim = 25 fun = @(E) A*exp(-E/kT); Np = []; nyi = []; for i = 1:dim Np(i)=integral...

oltre 4 anni fa | 1

| accettato

Risposto
How to mark a specific point on CDF graph?
Assuming you have 4 cdf arrays, you can find the x-values as: cdf1ind = find(cdf1>=.80,1,'first'); x1 = x(cdf1ind); cdf2ind = ...

oltre 4 anni fa | 0

| accettato

Risposto
How to write a code to estimate parity of numbers in a sequence?
bnumbers = [5 0 8 3 9 2 7 6 1 4 8 1 0 5 9 7 2 6 3 4]'; bresponse = [0 0 1 0 0 0 0 0 0 2 0 2 2 0 0 0 0 0 0 0]'; bbinary = ...

oltre 4 anni fa | 0

| accettato

Carica altro