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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 8 jaar ago | 0 answers | 1

### 0

answersWhen 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: ...

ongeveer 9 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...

bijna 11 jaar ago | 0

| accepted

Open many files using uiopen or uigetfile

filename = uigetfile('*.*', 'All Files (*.*)','MultiSelect','on');

bijna 11 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...

bijna 11 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);

bijna 11 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') ...

bijna 11 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 =...

bijna 11 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...

bijna 11 jaar ago | 0

| accepted

how to eliminate the error

@time ===> @times s1.coefs=bsxfun(@times,s1.coefs(:,1:end-1),s1.order:-1:1)

ongeveer 11 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; ...

ongeveer 11 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)]; ...

ongeveer 11 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

ongeveer 11 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)

ongeveer 11 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...

ongeveer 11 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...

ongeveer 11 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))

ongeveer 11 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'); ...

ongeveer 11 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...

ongeveer 11 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 ...

ongeveer 11 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...

ongeveer 11 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...

ongeveer 11 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...

ongeveer 11 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...

ongeveer 11 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),{' ...

ongeveer 11 jaar ago | 0

horzcat error while using ' '

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

ongeveer 11 jaar ago | 0

| accepted

How to evaluate dirac function in matlab?

syms x; y=diff(dirac(x),x) subs(y,1)

ongeveer 11 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 + ...

ongeveer 11 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...

ongeveer 11 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...

ongeveer 11 jaar ago