Answered
From four different numbers, how can I find out the minimum and maximum numbers that can created from the digits?
Hi. A=7465; A=num2str(A)'; Minimum=str2num(sort(A)') maximum=str2num(sort(A,'descend')')

12 years ago | 1

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Answered
Write a function getatriangle(R,f,b) that takes the number of rows R and returns a character matrix that has the shape of a triangle filled with the character 'f' on a background filled with the character 'b'.
Hi. R = 20; f = '@'; b = '-'; max_num=2*R-1; fprintf('\n'); for i=1:R S1=repmat(b,[1 R-i]); ...

12 years ago | 0

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Subscript indices must either be real positive integers or logicals.
Hi. Use another name for your variable 'sin'. When you use it as a variable,then you can't use it as sinusoid function: fs ...

12 years ago | 0

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built-in 2D convolution vs for-loop convolution differences?
Hi. You need to rotate your kernel 180 degree: x = 0:.1:pi; A = rand(100,100); M = sin(x).^2'*sin(x).^2; figure(1...

12 years ago | 1

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Answered
How to output specific matrix component to excel?
Hi. Convert it to two dimensional, then use xlswrite: a=rand(3,3,4000); a1=a(1,1,1:500); a2=a1(:); xlswrite('Matla...

12 years ago | 0

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symbolic differentiation with multiple variables/parameters
See: doc matlabFunction Help: When converting symbolic expressions, the order is alphabetical.When converting symbolic ...

12 years ago | 0

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Sum an array in one dimension to calculate the probability
Hi. A(:,:,1) =[0.4528 0.0477 0.0715;0.0220 0.0023 0.0035;0.0045 0.0005 0.0007;0.0511 0.0054 0.0081]; A(:,:,2) =[0.0129 0...

12 years ago | 0

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Answered
How to assign a column vector a name in a matrix while processing multiple files (loop)?
Hi. What is the variable name that you want to calculate its 4th column average? if the name of the variable is the same in all ...

12 years ago | 0

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What is going wrong with my mesh command?
Hi. clear [x,y]=meshgrid(-10:0.1:10) d=max(sqrt(x.^2+y.^2),sqrt((x-5).^2+(y+1).^2)); d=max(d,sqrt((x-4).^2+(y-...

12 years ago | 0

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Answered
How to run this MATLAB codes in R-Programming?
Hi. function y=calcul(n,t) for j=1:t for i=1:100 [yy,i1]=fungi(n,j); point(i)=yy(j+1);...

12 years ago | 0

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how can i color the particular block of the image?
Hi. clear grayImage=imread('cameraman.tif'); blockNumber = 34; blockSizeC=32; blockSizeR=32; blockrows =8; b...

12 years ago | 0

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Answered
how to find the length of characters stored in cell array?when each column contains words of different length?
Hi. a={'issue', 'information', 'books','subject'} L=cellfun(@length,a)

12 years ago | 0

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Answered
Attempted to access x(2); index out of bounds because numel(x)=1. But I'm using a matrix?
Hi. You change your x in first loop : x = x(i) ====> x=22.5 after this x became a number.

12 years ago | 1

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How to draw this figure?
Hi. m=0.5; [x,y]=meshgrid(-11:.1:11); d=sqrt(x.^2+y.^2); S=d; S(d>10)=0; S(d<=10&d>5)=exp(-0.5.*(d(d<=10&d>5...

12 years ago | 0

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Answered
Error using imread (line 368) ; File "..." does not exist
Hi. change your current folder to myFolder: cd(myFolder) or use this: im1 = imread([myFolder pngfiles(1).name])

12 years ago | 0

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Answered
Take mininum over only two dimensions of 4-d array
Hi. R=reshape(1:16,[2 2 2 2]); M=min(min(R,[],4),[],3);

12 years ago | 0

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Call functions with names generated from strings
Hi. fluid.muO=@(p) p.^2+1; fluid.muW=@(p) cos(p)+2*sin(p); phase = 'O'; name = strcat('fluid.mu',phase);%['fluid.m...

12 years ago | 0

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Answered
Is it wrong if PSNR is coming IN range of 128 - 170
Hi. It's not wrong, but it's unusual: <http://en.wikipedia.org/wiki/PSNR>

12 years ago | 0

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How to implement Zernike moments?
Hi. <http://www.mathworks.com/matlabcentral/fileexchange/38900-zernike-moments>

12 years ago | 0

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find and ismember are not working for one number in a vector
Hi. See this: <http://matlab.wikia.com/wiki/FAQ#Why_is_0.3_-_0.2_-_0.1_.28or_similar.29_not_equal_to_zero.3F>

12 years ago | 0

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Answered
How to remove middle part of data on Histogram plot
Hi. I=imread('cameraman.tif'); h=imhist(I); h(ceil(1/10*256):floor(6/10*256))=0; bar(h,.2)

12 years ago | 0

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accessing excel content nd writing d content one by one into imread instruction..
Hi. You don't need to use fopen or fclose. [~,txt,~] = xlsread('tun.xlsx'); disp(txt); for i=1:20 A=txt{1,i...

12 years ago | 0

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Answered
how to produce a 2-D point distribution with normal density distribution
With adding a number in x and y directions you can change their position, and the number multiplied changes their radius: A...

12 years ago | 1

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How to find all possible combinations of 3 nos chosen from 3 different sets??
Hi. C=1:1:100; D=1:1:150; E=1:1:125; [x,y,z]=meshgrid(C,D,E); A=[y(:) x(:) z(:)];

12 years ago | 1

Answered
How do you automatically put values into an array when in a loop?
Hi. Without loop: NoS = 6; NoJ = 4; data1=reshape(data(1:96,3),4,24); bars=mean(data1); errors=std(data1); ...

12 years ago | 0

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how can i compare one vector with the other vector when all the stored in a matrix.
Hi. B= [ 12 34 56 78 34 76 98 21 98 76 56 34 12 34 56 78 12 34 56 78 34 76 98 ...

12 years ago | 0

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Answered
In the rule viewer in the Fuzzy toolbox, how to to insert many inputs at one time and get the output automatically in the text format?
Hi. You can use evalfis : a = newfis('fis1.fis'); %create a new FIS file a = addvar(a, 'input', 'x', [2 9]);%add and i...

12 years ago | 0

Answered
How to change an entire column.
A = randi(10,[10 640])-1; B = A; B(:,sum(A==0)>0)=0;

12 years ago | 1

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Answered
Need to find the value of x_?, where x_? is x at y=?......
Hi. x=[0.1; 0.05; 0.2]; y=[20; 15; 85]; x(y==15)

12 years ago | 0

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Answered
Pole Plot of System-vector
Hi. It's works, but maybe it's not correct: c = rand(121,3); Cell_Den = mat2cell(c,ones(121,1),3)'; Cell_Num(1:121) =...

12 years ago | 0