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# Iman Ansari

Last seen: 11 mois il y a Actif depuis 2013

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A problem in using imhist to display histogram of indexed image
First i convert the image to an indexed image, and use only 5 colors to show what is my problem. clear img = imrea...

plus de 7 ans il y a | 1 réponse | 1

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When i make simulation, the plot at workspace is different the plot at scope?? .. I want the plot at workspace same as the plot at scope
Hi Use simulation time vector to plot in command widow, maybe the simulation ran with variable steps. Something like this: ...

environ 8 ans il y a | 0

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use evalfis to read input under a range
In your code, input isn't same as [88 134 144]. They are logical (0,1): evalfis([88 134 144]) but: evalfis([0 1 1...

presque 10 ans il y a | 0

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Open many files using uiopen or uigetfile
filename = uigetfile('*.*', 'All Files (*.*)','MultiSelect','on');

presque 10 ans il y a | 1

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Create an 8-color version of an image
This problem was inspired by a tweet I saw from @MATLAB regarding <http://www.mathworks.com/matlabcentral/fileexchange/37816-the...

presque 10 ans il y a

A répondu
How to use find function in cell array
C = {100*rand(100,2);100*rand(100,2);100*rand(100,2)}; X = cellfun(@(x) find(x(:,1)<27),C,'Un',0);

presque 10 ans il y a | 0

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A moving point plot in MATLAB figure with animation.
n = 50; XY = 10 * rand(2,n) - 5; for i=1:n plot(XY(1,i),XY(2,i),'or','MarkerSize',5,'MarkerFaceColor','r') ...

presque 10 ans il y a | 3

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Generate gaussian random points in 3D space with a given mean position.
m = [2 0 2]; s = 1; n = bsxfun(@plus,m,s.*randn(100,3)); plot3(n(:,1),n(:,2),n(:,3),'.r') M = mean(n,1) S =...

presque 10 ans il y a | 2

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Write in Excel With Matlab on continues Cells
First put your data in a cell array then write it: rangT = 1:10; maximox = rand(10,10); fprintf('Select file locati...

presque 10 ans il y a | 0

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how to eliminate the error
@time ===> @times s1.coefs=bsxfun(@times,s1.coefs(:,1:end-1),s1.order:-1:1)

presque 10 ans il y a | 1

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how to draw a temperature distribution on (x,y,z)?
t defines color: [x y] = meshgrid(-10:0.1:10); z =zeros(size(x)); z(x+2*y>-9 & 2*x+y<9 & x-y>-10 & x-y<15) = 1; ...

presque 10 ans il y a | 0

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Stor data in a vector
p_t2=1:1000 pt2=1:40 JJ=[]; for z=1:40 for v=1:25 XX=p_t2(v)./pt2; JJ=[JJ sum(XX)]; ...

presque 10 ans il y a | 0

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im trying to make array of images s1,s2,s3 and s4 and want to show them in different figures ........... what is wrong over there? .........
clear arr={s1,s2,s3,s4}; for i=1:4 b=imread(arr{i}); figure imshow(b); end

presque 10 ans il y a | 0

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how to use "if" statement properly?
A=rand(10,1); B=rand(10,1); z=B./A; z(z<1)=-1./z(z<1)

presque 10 ans il y a | 1

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how to draw circles with different radii
n=10; X=rand(n,1)*10; Y=rand(n,1)*10; R=rand(n,1)*3; P=[0:0.1:2*pi 0]; xr=R*cos(P); yr=R*sin(P); X_C=bsxf...

presque 10 ans il y a | 1

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inverse laplace transformation and plot of transfer function
Why residue(b,roots(a))? b=[0,-1.387778780781446e-017, -2.775557561562891e-017, 3.333333333333329e-005]; a=[1.0000000000...

presque 10 ans il y a | 0

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Getting element row and column (index location) out of a matrix?
Resultant=rand(10,10); [B,IX] = sort(Resultant(:),'descend') [r c] = ind2sub(size(Resultant),IX(1:5))

presque 10 ans il y a | 1

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histogram of 3D intensity image and normalize the intensity by linearly fitting the histogram to the ICBM-152
A=uint8(randi(256,256,124,256)-1); H1=imhist(A(:)); % Or %H2=histc(A(:),0:255); B=imread('cameraman.tif'); ...

presque 10 ans il y a | 0

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Distance walked 3D
suppose you go from x-y-z coordinates [3,4,2] to [0,0,2] to [0,1,2] to [1,1,2], to [1,1,20] then you walked 25 units of distance...

presque 10 ans il y a

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Omit columns averages from a matrix
Omit columns averages from a matrix. For example: A = 16 2 3 13 5 11 10 8 9 7 ...

presque 10 ans il y a

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Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

presque 10 ans il y a

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Distance walked 1D
Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

presque 10 ans il y a

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Organize data as vector matrix and do calculation ?
lightV = zeros(1, 1, 3); lightV(1,1,1) = 0.5; lightV(1,1,2) = 0.4; lightV(1,1,3) = 0.7; [Az El] = meshgrid(0:60:36...

environ 10 ans il y a | 0

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Howto arrange panels in desktop
After adding editor panel in position [1,2], drag workspace panel and drop it in right half of editor panel: <<http://snag.g...

environ 10 ans il y a | 0

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Export to a fixed width text file
A={'s09' 1111222003 321 'P' 'ehz';'z09' 1011222003 321 'O' 'edz'}; A=cellfun(@num2str,A,'Un',false) B=strcat(A(:,1),{' ...

environ 10 ans il y a | 0

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horzcat error while using ' '
names=['john'; 'ravi'; 'mary'; 'xiao'] howdy=['10'; '20'; '30' ;'40'] result=[names repmat(' ',4,1) howdy]

environ 10 ans il y a | 0

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How to evaluate dirac function in matlab?
syms x; y=diff(dirac(x),x) subs(y,1)

environ 10 ans il y a | 1

A résolu

Summing digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

environ 10 ans il y a

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Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

environ 10 ans il y a

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Return the first and last character of a string
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

environ 10 ans il y a