Chunru

Last seen: Today | Active since 2013

Followers: 0 Following: 0

Message

Matlab user since 1990

Statistics

All

View badges

Feeds

Answered
How to remove (or isolate) side peaks except main peak after FFT
You can try "findpeaks" and using "MinPeakDistance" option. doc findpeaks

23 hours ago | 0

Answered
plot signal - adjust axis
% Test data f = (-100:1:100); p = randn(size(f)); p = p-min(p)+1; % extropolate data fe = [-125 f 125]; pe = interp1(fe...

3 days ago | 0

Answered
How to set the font in pdf generated by LiveScript
One workaround is to change the paper size, orientation and margin when exporting to pdf file. Export-->Show more--> Change Pap...

6 days ago | 0

Answered
Selecting one side of xy data points
You can use inpolygon to test if the dot is in red shape or blue shape: doc inpolygon

6 days ago | 0

Answered
Merge multiple cells into one cell array
n = 3; Degrees = randi([0 359], [n, 1]) Minutes = randi([0 59], [n, 1]) Seconds = rand([n, 1])*60 s = compose("%d%c%d%c%...

6 days ago | 1

Answered
How to to get a figure to fill a box or get a box around the figure
axis tight

22 days ago | 0

| accepted

Answered
HELP! How can i solve this array incompatible size issue
Make the change: N = length(t); If you need larger N, thant T in your code to a larger value. % Parameters fs = 1000; ...

22 days ago | 1

| accepted

Answered
Vertically Concatenating Tables in a Loop
TableAll = []; for m = 1:10 Trial = [COPData(m).data,OPALData(m).data]; %Original Table COPTv_y = diff(Trial.COPy)./d...

23 days ago | 0

| accepted

Answered
Is there a way to identify which dataset a value belongs to for overlapping datasets?
websave("dataset.mat", "https://www.mathworks.com/matlabcentral/answers/uploaded_files/1650591/dataset.mat") load("dataset.mat"...

24 days ago | 0

| accepted

Answered
Choosing the role of NaN elements in the sum environment of matrices
aa=[1 2; 3 NaN]; bb=[NaN 1; 2 NaN]; cc = mean(cat(3, aa, bb), 3)

24 days ago | 0

Answered
Shift Filter outputs to align peaks
You can compute the group delay around the fc to align the output (approximately). fs = 20e3; numFilts = 32; % filter_numbe...

24 days ago | 1

Answered
How to create biphasic pulses?
N = 4; %400; % number of pulses Tp = 1; % pulse width; d1 = 1; % interphase delay d2 = 1; % in...

27 days ago | 0

| accepted

Answered
what does this mean , how and for what is it used ?
The following will produce a 5-dimensional array of 2x3x5x5x8. You can access the element by specifying 5-d index x=ones(2,3,4...

28 days ago | 0

Answered
How to generate multiple tiff files into my file path?
thresholdarray = [0.01, 0.1, 0.001]; medfiltarray = [2, 8, 10, 16]; for i = 1:3 thresholdvalue = thresholdarray(1,i); ...

28 days ago | 0

Answered
How to create a series of separate tiff files?
It works here (in a unix environment). You may want to change ":" in file names into "_" for windows. thresholdarray = [0.01, ...

28 days ago | 0

Answered
How to fine numerical gradient
clear; clc; xs = linspace(1,2,100); ys = linspace(1,3,100)'; % transpose here fun_values = zeros(100,100); %{ for ix...

28 days ago | 1

| accepted

Answered
Why does the fft function cut in half the amplitude of my signal?
Note that a sinosoidal signal can be expressed as: FFT of (normalized by N) will have a peak at f0 with amplitude of 1 (si...

29 days ago | 0

Answered
meaning of f in fprintf function
In old days, the command \f is used to make a printer to move to beginning of next pages. fprintf or print or printf are used b...

29 days ago | 1

| accepted

Answered
Sig figs on the rand function
==> Just another general question here, is there a reason the rand function has 6 sig figs? i.e. 12.3456 rand function (by defa...

29 days ago | 0

| accepted

Answered
Keep elements of an array that only fall within a given closed shape
space_a=linspace(0,168.3934962848858,50); % nm space_b=linspace(0,250,50); % nm z = peaks(50); % generate some test dat...

29 days ago | 1

| accepted

Answered
Modifying the graphical viewpoint
"doc view" for more details.

30 days ago | 0

| accepted

Answered
How to extend a curve until x-axis and y-axis?
Use "axis tight" r=0.03; T=10; t=2; lambda1=0.28:0.28:3.08; thai=0.43; alpha=7.2; delta=0.0609; s=100:100:1100; sigma=2...

1 month ago | 1

| accepted

Answered
I keep getting an error on my correlation coefficient on line 20
There is no error running here(see below). Can you show your error message? % Given data x = [0, 2, 4, 6, 9, 11, 12, 15, 17, 1...

1 month ago | 0

| accepted

Answered
How to up-sample both signals and labels together?
%websave("upsamp.mat", "https://www.mathworks.com/matlabcentral/answers/uploaded_files/1642771/upsamp.mat"); websave("upsamp_R....

1 month ago | 0

| accepted

Answered
connecting each data points in a bar graph with an error bar
Saline1 = [41 55]; Saline2 = [34 26]; bar(1,mean(Saline1), 0.6, 'FaceColor',[0.7 0.7 0.7]) hold on bar(2,mean(Saline2), 0.6,...

1 month ago | 0

Answered
Which function used to use in M-Script to remove the variables
a = 3; b = 4; % use clear to remove variables clear a whos a

1 month ago | 0

Answered
How to put different size vectors to one matrix or mat file?
d1=[1 2 3 4 5 6 7 8]; d2=[1 2 3 4 5]; d3=[1 2 3]; d4=1; % Use cell array d5 ={d1; d2; d3; d4} % you can save d5 as a mat f...

1 month ago | 2

Answered
How to filter out multiple outliers from a gradually changing dataset?
Adjust the threshold: websave("a_data.mat", "https://www.mathworks.com/matlabcentral/answers/uploaded_files/1641186/a_data.mat"...

1 month ago | 0

| accepted

Answered
how to solve if interpolated data also contains NaN values
a = readmatrix("https://www.mathworks.com/matlabcentral/answers/uploaded_files/1641181/V2_small.txt"); a(a>9999.8) = nan b...

1 month ago | 0

| accepted

Answered
How to plot data from an external MAT file against a time domain?
If you want to plot whole time series: ns = length(icpcomposite); t = (0:ns-1)/fs; plot(t, icpcomposite); If you want to plo...

1 month ago | 1

Chunru

Statistics

Community

Community

MATLAB Answers

MATLAB Answers

Cody

Cody

MATLAB Answers

MATLAB Answers

Cody

Cody

Cody

Cody

Feeds