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Question
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...
meer dan 9 jaar ago | 1 answer | 1
1
answerWhen 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: ...
meer dan 10 jaar ago | 0
| accepted
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...
ongeveer 12 jaar ago | 0
| accepted
Open many files using uiopen or uigetfile
filename = uigetfile('*.*', 'All Files (*.*)','MultiSelect','on');
ongeveer 12 jaar ago | 1
| accepted
Solved
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...
ongeveer 12 jaar ago
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);
meer dan 12 jaar ago | 0
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') ...
meer dan 12 jaar ago | 3
| accepted
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 =...
meer dan 12 jaar ago | 2
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...
meer dan 12 jaar ago | 0
| accepted
how to eliminate the error
@time ===> @times s1.coefs=bsxfun(@times,s1.coefs(:,1:end-1),s1.order:-1:1)
meer dan 12 jaar ago | 1
| accepted
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; ...
meer dan 12 jaar ago | 0
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)]; ...
meer dan 12 jaar ago | 0
| accepted
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
meer dan 12 jaar ago | 0
| accepted
how to use "if" statement properly?
A=rand(10,1); B=rand(10,1); z=B./A; z(z<1)=-1./z(z<1)
meer dan 12 jaar ago | 1
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...
meer dan 12 jaar ago | 1
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...
meer dan 12 jaar ago | 0
| accepted
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))
meer dan 12 jaar ago | 1
| accepted
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'); ...
meer dan 12 jaar ago | 0
Solved
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...
meer dan 12 jaar ago
Solved
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 ...
meer dan 12 jaar ago
Solved
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...
meer dan 12 jaar ago
Solved
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...
meer dan 12 jaar ago
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...
meer dan 12 jaar ago | 0
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...
meer dan 12 jaar ago | 0
| accepted
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),{' ...
meer dan 12 jaar ago | 0
horzcat error while using ' '
names=['john'; 'ravi'; 'mary'; 'xiao'] howdy=['10'; '20'; '30' ;'40'] result=[names repmat(' ',4,1) howdy]
meer dan 12 jaar ago | 0
| accepted
How to evaluate dirac function in matlab?
syms x; y=diff(dirac(x),x) subs(y,1)
meer dan 12 jaar ago | 1
Solved
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 + ...
meer dan 12 jaar ago
Solved
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...
meer dan 12 jaar ago
Solved
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...
meer dan 12 jaar ago
