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Storing values from for-loop into a matrix
In MATLAB array indices should be posititve integers, in the given code, i the loop index is used as index in T, V; i is not an ...

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Fit a least squares ellipse
Replace this line: A=R(1:6); with A=R(1,6); There is a typo error in getting A. A is a vector in your case, you arenot gett...

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Gather specially vector satisfied the condition
np=100; X = zeros(np) ; x = 1.5*randn(np,1); for i = 2:np X(:,i) = 0.5*(X(:,i-1)+randn(np,1)); end

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Calculate and plot the shortest distance (norm) between a point and a line in 3D space
It is an easy task to achieve. You can find the foot of the perpendicular. Refer this: https://www.toppr.com/ask/question/the-...

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Separating data into one-second intervals, and finding the maximum data in each interval
As you said data is from 40-80 seconds and each second has 1300 data points, you can pick the first 40*1300 rows and reshape the...

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Extract Cell Data Contain With Char
fg = {'07-Apr-2022'; '08-Apr-2022'; '09-Apr-2022'}; datetime(fg)

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why I can't export the training plot
Try: currentfig = findall(groot, 'Tag', 'NNET_CNN_TRAININGPLOT_UIFIGURE'); savefig(currentfig,['Training,','.fig']);

14일 전 | 1

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Lines vanishing on plot when rescaling axes
I don't think they are vanishing...they might be mixing up with the already existing line: Try: plot(xdata, ydata1, 'k') hold ...

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How do I compute volume of a set 3-D point?
Read about trapz. Refer: https://in.mathworks.com/matlabcentral/answers/1455449-how-to-calculate-volume-of-surf-plot-3d-plot-e...

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Why I see only the last value of my row vector in the workspace?
You are using the vector as the loop index so obviously you will find only the last value. You can check it your self. for a =...

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How to find the mean of a column in a matrix using for loop?
TempSenVal=[58.3 59.2 60.2 63.0 63.3; 62.5 63.8 64.9 65.2 65.8;... 63.2 64.2 65.3 67.8 67.9; 64.0 65.1 67.8 68.2 69.1; 65.5...

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How to plot a color shade instead of graph curves?
How about this approach? load('p0_t.mat') ; x = t ; y0 = min(p0(:)) ; y1 = max(p0(:)) ; y = linspace(y0,y1,300) ; [X,Y...

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How to fit a curve into contour plot?
Get the contour line coordinates using the contour function and use polyfit. Read about polyfit.

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How to reshape matrix by column number?
需求= [1 780 0 0 0 0 0 0 0 8 45 0 1 79 0 0 0 0 31 8 0 0 0 0 0 1 80 456 0 4 0 39 0 0 0 16 0 0] ; n = size(dema...

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How to select the frame at the mouse click from a video?
REad about ginput and getpts.

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How to select points from a input video?
v = VideoReader(myvideo) ; n = 10 ; % say this the frame you want to read frame = read(v,n); imshow(frame) [x,y] = getpts ...

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Average a section of a column in a table base don another column values
[c,ia,ib] = unique(T3.index) ; N = length(c) ; iwant = zeros(N,1) ; for i = 1:N iwant(i) = mean(T3.value(ib==i)) ; end

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Using First Two Columns to Solve for Third
M = [0;30;90;180;200;350] ; e = [0.01;0.01;0.01;0.01;0.01;0.01] ; N = length(M) ; iwant = cell(N,1) ; for i = 1:N iw...

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Print value of correlation to a plot displaying two functions
R = corr(y1,y2,'Type','Kendall') ; figure(); hold on; plot(Year,y1); hold on; plot(Year,y1); str = sprintf('%f',R) ; ...

16일 전 | 0

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how can i use a loop to run the specific code
ncFiles = dir('E:\data\2002\*.nc') N = length(ncfiles) ; Q = zeros(N,1) ; for i = 1:N ncFile = fullfile(ncFiles(i).fol...

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plot graph for multiple values for one of the variables on the same axis (and in different colours)
You have to initilaize the variables inside the loop. Read about initliaing an array in aloop. r1=18e-2; % inner radius of s...

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画一个圆,已知半径
th = linspace(0,2*pi)' ; R = 1; x = R*cos(th) ; y = R*sin(th) ; % make groups G = zeros(size(th)) ; G(th >= 0 & th < ...

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How to merge two matrix?
a=[6 6 5 6 5 6 6] ; b = [0.74 0.66 0.58 0.47 0.62 0.75 0.76] ; [c,ia,ib] = unique(a) ; N = length(c) ; G = cell(N,1)...

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How to create a cell array by repeating a row vector
A = 1:10 ; B = reshape(repelem(A,4,1),2,2,10) ; C = num2cell(B,[1 2]) ; celldisp(C)

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Graph plotting of f(x,y)=e^x+e^y using ezsurf
clear clc syms x y f=(exp(x)+exp(y)) ezsurf(f) colormap cool

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I want to get the result, not the graph, what to do
[f,xi] = ksdensity(x,x1);

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How to refill the Missing values to complete the sequence
Read about fillmissing. load('Values.mt') ; idx = Values == 4000 ; % get missing values i.e. 4000 Values(idx) = NaN ; % ...

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How to take monthly average from table?
Read about retime. https://in.mathworks.com/help/matlab/ref/timetable.retime.html

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How to find the closest value to the average in an array?
a = [1,2,3,4,5,6,7] ; [val,idx] = min(abs(a-mean(a))); a(idx)

19일 전 | 0

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How to stop loop rewriting
notebook = readtable('notebook.xlsx'); filename = notebook.Filename; num_files = length(filename); exp = cell(1,num_files);...

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