Community Profile

photo

Chunru


Last seen: 1 día hace Con actividad desde 2013

Matlab user since 1990

Statistics

All
  • Treasure Hunt Participant
  • MATLAB Central Treasure Hunt Finisher
  • 12 Month Streak
  • Guiding Light
  • Number Manipulation I Master
  • Indexing I Master
  • Revival Level 2
  • Knowledgeable Level 5
  • Commenter
  • Sequences And Series II Master
  • Speed Demon
  • Creator

Ver insignias

Content Feed

Ver por

Respondida
How to calculate a running value of a function for every 30 samples?
Nt= 50; % Total samples d = randn(1,Nt); ratioCompute = movmean(d, 30)

4 días hace | 0

Respondida
How to count number of ones and zeros in a binary number?
% if you use char to represent binary numbers A='1100'; mod(sum(A=='1'), 2) == 0 % if you use double to represent binaray num...

4 días hace | 0

Respondida
Receiving a "Array indices must be positive integers or logical values." message
change the for loops into: x = 1:.1:10; results = abs(q) ./ (4*pi*e0*x.^2); The original program has result(x) where x is not...

4 días hace | 1

Respondida
define a counter which will starts counting from zero automatically when the count reaches to 10
c = 0; % initialization while true c = mod( c + 1, 10); % count from 0 to 9 then re-start end

17 días hace | 0

Respondida
Reading CSV file with header and other data.
T=readtable("https://www.mathworks.com/matlabcentral/answers/uploaded_files/1174693/Without%20Cooling-%20aluminum%20No1.csv", .....

alrededor de 1 mes hace | 0

| aceptada

Respondida
Merge the multi-columns, multi-rows in one column, one row
var = ["filename", "xmin", "ymin", "xmax", "ymax"] T = { "Japan_000001_jpg.rf.7b3ecaac169c998a18815a31934dbbea.jpg", 0, ...

alrededor de 1 mes hace | 0

Respondida
Trying to change the y axis range in fplot
syms s a b c d e f n10 = a + (b*s) + c*(s^2) + d*(s^3) + e*(s^4) + f*(s^5) n10_d1 = diff(n10,s) n10_d2 = diff(n10_d1,s) A = ...

alrededor de 1 mes hace | 0

Respondida
How to find the maximum value between two indices in an array?
Without yor data and complete code, this is a guess: mode2a = 200; % frequency lower bound (Hz) mode2b = 600; % frequency uppe...

alrededor de 1 mes hace | 1

| aceptada

Respondida
How to add tolerance to iteration with if statement
x(1,1)=0; %Initial guess, x=0 y(1,1)=0; %Initial guess, y=0 z(1,1)=0; %Initial guess, z=0 R=0.3; %relaxation factor f...

alrededor de 1 mes hace | 0

| aceptada

Respondida
Why is my plot blank
P0=300; %power of the heater n=50;% amount of gas (mol) M=28; % Molar mass of Nitrogen gas m=n*M;% m is the mass of the gas(g...

alrededor de 1 mes hace | 0

| aceptada

Respondida
Bandpass power spectrum density issue
You need fs >2*f_upper. Try fs = 80GHz Wx = 50*10^6; % Signal bandwidth Tx = 1/Wx; % Symbol ti...

alrededor de 1 mes hace | 0

| aceptada

Respondida
Assign variables from a solve solution
syms k_x Kr_x alpha_x c0=18.1499 alpha0=0.3491 g=9.81 omega=0.54 D2 = [1 2]; for i=1:length(D2) c_x=c0*tanh(k_x*D...

alrededor de 1 mes hace | 0

| aceptada

Respondida
How to add tolerance to iteration with if statement
% if a2(i+1,1)-a2(i,1)<0.1 % change the above to: if abs(a2(i+1,1)-a2(i,1))<0.1

alrededor de 1 mes hace | 0

Respondida
How can I plot this function?
% parameters (use your values) lambdaR = 1; lambdaI = -1; d = 3; p = 2; x = -10:.1:10; w = sqrt(pi/2)*exp((-p^2-4*p*la...

alrededor de 1 mes hace | 0

Respondida
spline interpolation between three values
P=[100 200 300]; T=[100 150 400]; density=[0.4,0.7,0.8]; Pq =100:300; Tq = spline(P, T, Pq); dq = spline(P, density, Pq)...

alrededor de 1 mes hace | 0

Respondida
Named arguments in Matlab?
Use arguments block (additionaly for default value, type and size check. doc arguments for more details) self = Renderer(sampl...

alrededor de 1 mes hace | 0

| aceptada

Respondida
Check for incorrect argument data type or missing argument in call to function 'int'
Break long line codes into shorter ones using ... int is not a builtin function. use fix/floor/round/ceil instead (find out th...

alrededor de 1 mes hace | 0

Respondida
how to save the values of DelL(T)
Lo = 44.46; Do = 18.76; alpha = 0.0002178 ; T = 36:1:180; DelL = Lo*alpha*(T-35); whos

alrededor de 1 mes hace | 0

Respondida
Acess all last array elements withtin cells
You can use cellfun: precipitate{1}=[1,2,3,4;1,2,3,4]; precipitate{2}=[1,2,3,4,5;1,2,3,4,5]; precipitate{3}=[1,2,3;1,2,3]; ...

alrededor de 1 mes hace | 0

| aceptada

Respondida
I can't figure out why am not getting a plot on my code
If you put the script and local function ga in the same file, then local functions should be placed at the end of the files as s...

alrededor de 1 mes hace | 0

Respondida
Finding the z transform
syms n omega f(n) f(n) = sin(omega*n) ztrans(f(n))

alrededor de 1 mes hace | 0

| aceptada

Respondida
inspection of linearity of data?
load(websave("check_linearity.mat","https://www.mathworks.com/matlabcentral/answers/uploaded_files/1167363/check_linearity.mat")...

alrededor de 1 mes hace | 0

| aceptada

Respondida
Why am I getting this error "not enough argument"
The number of input arguments is 6: for r =1:m H_MMSE(: , r ) = MMSEesti(ReceivedPilots (: , r ), TransmittedPilots (: , r...

alrededor de 2 meses hace | 0

Respondida
Creating 3D array from 2D with increment
A = randi([1, 10], [3, 5]) C = A + reshape(0:2, [1,1,3]) % increment 0, 1, 2 for example

alrededor de 2 meses hace | 0

| aceptada

Respondida
Change sequence of consecutive trues to falses, in logical array
x=[true;false;false;true;true;true;true;true]' output = x; dx = diff(x(1:end-1)) output1 = output(2:end-1); output1(output1 ...

alrededor de 2 meses hace | 0

Respondida
Add indicative labels to vector values
A1 = [ 1 ; 2 ; 3 ]; A2 = [ 4 ; 5 ; 6 ]; A_labeled = [A1 ones(size(A1)); A2 zeros(size(A2))]

alrededor de 2 meses hace | 0

Respondida
Compact way to plot data with relative colors and legend
% Input a = {'marathon', 1, 4; 'bank holiday', 3, 6; 'bank holiday', 2, 1; 'concert', 0, 4; 'regatta', ...

alrededor de 2 meses hace | 1

Respondida
Bode Plot options to graph
H = tf([1 0.1 7.5],[1 0.12 9 0 0]); [mag,phase,wout] = bode(H); subplot(211); plot(wout, squeeze(mag(1,1,:))) subplot(212); p...

alrededor de 2 meses hace | 0

Respondida
How to create a for loop to go through data arrays?
%data = load('file.mat'); data.laser1.pulse=randn(10,1); data.laser2.pulse=randn(10,1); data.laser3.pulse=randn(10,1); dat...

alrededor de 2 meses hace | 0

| aceptada

Respondida
How can i estiamte the local distance between two boundaries at each point ??
load(websave("bw1.mat", "https://www.mathworks.com/matlabcentral/answers/uploaded_files/1153258/bw1.mat")) load(websave("bw2.ma...

alrededor de 2 meses hace | 0

| aceptada

Cargar más