Answered
descriptive statistics in one line of code
A = rand(1,10) ; v = [min(A), max(A), mean(A), std(A)] ; v(1) % min v(2) % max v(3) % mean v(4) % std

5 years ago | 1

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Answered
FileExchange stl-file to m-file?
You have to download that file from the file exchange and use. This is the link: https://in.mathworks.com/matlabcentral/fileexch...

5 years ago | 0

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What is the meaning of imV = [R(:),G(:),B(:)]; ?
If A is an matrix A(:), this means it will convert the matrix A into column array by joining all columns. So, in your case the...

5 years ago | 0

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why are my surfaces not connected?
You have to merge them. As of now they are two independent surfaces. Do the below: X = [z1 z4] ; Y = [z2 z5] ; Z = [z3 z6] ; ...

5 years ago | 0

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Answered
How to calculate the distance geometry between two vectors of 6 elements?
V1 = [0.0084 0.1871 0.1033 0.3332 0.3156 0.0524]; V2 = [0.0176 0.2079 0.1245 0.2954 0.2510 0.10...

5 years ago | 0

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Ploting graph of date/time vs variable
Convert your dates into the class datetime.. read about datetime. And then you can striaght away use plot. https://in.mathwork...

5 years ago | 0

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How do i script to calculate the Sum for the following expression
You can also achieve the same without suing loop. This is called vectorization. You should read about element by element divison...

5 years ago | 1

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Total number of zeros , ones , twos..etc in a matrix
Let a be your data array. [count_unique, unique_a] = hist(a,unique(a)) ;

5 years ago | 0

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Answered
Output argument 'ua' is not assigned on some execution paths.
When the condition is not satisfied either of the variable ua, ub is not defined; so you will get error. You must define them fi...

5 years ago | 0

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Answered
finding point on a function
Read about interp1. Let (x,y) be your data. xi = a ; yi = interp1(x,y,xi) ; [xi yi]

5 years ago | 0

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how do I plot different polyfit(x,y,5) onto the same graph?
Use hold on. Or save them into a matrix and plot. Read about plot, hold on.

5 years ago | 0

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How can I create a set from elements and combined elements?
You can initialize a cell and get what you want. combination = cell(10,1) ; for i = 1:10 combination{i} = ['combination...

5 years ago | 0

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conditional for loop not running
% case 1 idx = Y<=90*L2_v/100 ; t90 = X(idx) ; % case 2 idx = Y<=50*L2_v/100 ; t50 = X(idx) ; % case 3 idx = Y<=10...

5 years ago | 0

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Answered
Not enough Input Arguments
Did you enter all your input variables? Don't run the function files using run button or F5 key. You need to define the input va...

5 years ago | 0

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plotting topography by using etopo
Read the etopo data and then you can plot them using pcolor, contour. Read about them.

5 years ago | 0

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Answered
Generate a vector of maximum values from an array of .mat files
% Read all mat files matFiles = dir("*.mat") ; N = length(matFiles) ; for i = 1:N load(matFiles(i).name) ; % Do w...

5 years ago | 0

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Error: the surface Z must contain more than one row or column.
h = 0.5:.1:5.0; b = 0.5:.1:5.0; [h,b] = meshgrid(h,b); Iy = (b.^3.*h)/6; meshc(h,b,Iy)

5 years ago | 0

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How can I mark specific indexes on a plot?
If (x,y) is your data and id1 and id2 are the indices. Use: plot(x,y,'b') hold on id = [id1 id2] ; plot(x(id),y(id),'*r')

5 years ago | 0

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Save Fig In png. format
Read about saveas https://in.mathworks.com/help/matlab/ref/saveas.html

5 years ago | 0

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What is exactly the kmeans ++ algorithm? How do I write in code?
Read about the inbuilt function kmeans. Read the references given in there. You may look in fileexchange to get different impl...

5 years ago | 0

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How to categorize data in a matrix?
A = [1 0 542 1 5 21 1 10 125 1 15 6245 1 20 2678 1 50 580 1 55 1205 1 60 196 2 0 5129 2 5 34 2 10 248 2 15 348 2 20 ...

5 years ago | 1

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How to smooth or average values of z in x-by-y defined areas in a XYZ array?
It is very much possible. Have a look on the following functions: movmean: https://in.mathworks.com/help/matlab/ref/movmean.ht...

5 years ago | 1

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How can i divide a 64*64 grayscale image into 8*8 blocks?
Refer: https://in.mathworks.com/matlabcentral/answers/362262-i-have-a-32-32-matrix-i-want-to-take-mean-of-each-4-4-so-that-the-m...

5 years ago | 0

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plotting using for loop
You need not to use a loop to get what you want. Already you are using .* i.e. eleemnt by element operation so , you can proceed...

6 years ago | 0

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How to plot summation equation
You need to proceed like below: n = 1000 ; % you can change it if you want % define your constant values below k = 1 ; ...

6 years ago | 0

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As shown in the picture，how to fit discrete points to a closed curve?
Your points are no tin an order....first make them into an order using boundary. load data1.mat ; x = data1(:,1) ; y = data1...

6 years ago | 0

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Answered
Plotting 3 outputs on the same graph
Run a loop and save it into a matrix and plot at the end. %% Part 7 clc; clear; close; Ur_M=53; m1=Ur_M/12.33; m2=Ur_M/12.33...

6 years ago | 1

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Answered
How to plot a surf-plot without data extrapoation?
You have the black line in hand.. make a closed polygon out of it and get the indices of the points lying inside and outside usi...

6 years ago | 0

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Answered
how to i check if matrix cotaining logical 1
A = [1 0 0]; B = logical(A) ; if any(B); disp('super') else disp('not good') end

6 years ago | 0

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Answered
Matrix dimensions must agree spread spectrum code
The error is simple...you need to check the dimensions of your variables spreaded_sig and carrier. To use element by element mul...

6 years ago | 0