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how to assign a variable using a string
Try (genvarname) with (eval) functions. Example (alter the example below to your use, i.e., instead of eval([b]) use eval([b = '...

13 years 前 | 0

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Making a magic square matrix singular
I don't think details are required since A=magic(n)-ones(n)*((1+n*n)/2) is changed into an antisymmetric matrix, any such...

13 years 前 | 1

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Please help me implement the equations: Pij = (f(i,j))/(∑_(i=1)^M∑_(j=1)^N〖f(i,j)〗) and H = ─∑_(i=1)^M∑_(j=1)^NPijlog2Pij
It would be something like (provide your own functions for f, and set up the values of M and N), clc;clear;close; % set u...

13 years 前 | 0

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How to calculate the determinant of a symbolic matrix 5x5
I don't think it is possible to concatenate a matrix such as K if A-F have sizes > (1,1), thus no value of the determinant exist...

13 years 前 | 0

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How do I assign a matrix column as my x or y values so that can plot them?
Use the basic matrix notation, the colon operator is very helpful in such cases. Example: y=magic(5) y = 17 ...

13 years 前 | 1

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Plotting Legends of Rows of a Matrix ???
A=[1 2 3 4; 1 2 3 5; 2 3 4 5]; plot(A) C=num2str(A); H=legend(C); set(H,'Interpreter','none');

13 years 前 | 0

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background suppression from any real time image
I've tried (Embedded Matlab Function) blocks once for a similar thing, and used my own program to handle the output.

13 years 前 | 0

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Why does the function real return expressions containing i ?
Check the math, e.g.: ... TheEq=w*1i*eye(n)-A-B1*e1-B2*e2- B3*(cos(tau3*w)-1i*sin(tau3*w))-B4*cos(tau4*w)-1i*sin(tau4...

13 years 前 | 0

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How do i interpolate a large matrix of data thats not in ascending order?
There are few interpolation techniques in Matlab. You can start with the functions interp1q % for simple 1-D interpolation...

13 years 前 | 0

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Can rectangularized data be achieved by modifying a text file with MATLAB?
Hi Brad. Instead of InputText=textscan(fid,'%s',1,'delimiter','\n'); Try this out [InputText, dn1]=fscanf(fid,'...

13 years 前 | 0

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Make error when using a embedded matlab function
Probably there is a simulink model with the same name. Try to use a slightly different function name for youe swap function such...

13 years 前 | 0

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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...

13 years 前

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Check each pixel for a specific color
Try I=imread('imageHere'); [a,b,c]=size(I); % change is needed for i=1:a for j=1:b F(i,j)=all(I(i,j)==0); e...

13 years 前 | 0

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how to resize a given signal?
Use reshape Y=function(X,m,n) It works for any input matrix (X) with number of elements (m x n). The output is Y with m...

13 years 前 | 0

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large text file reading
Try this and note to specify your filename input (FIN) and filename output (FOUT) properly, i.e., FOUT must be with extension (...

13 years 前 | 0

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How to convert a string to a symbol ?
@Jacky (the actual expression is : (x>=1 & x<9)). This is the question! This is a logical comparison statement. The meaning...

13 years 前 | 1

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immovieFolder.m
IMMOVIEFOLDER records a movie from a group of image files in a specified folder, and plays it.

13 years 前 | 1 次下载 |

0.0 / 5

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How to convert a string to a symbol ?
sym and syms are used to declare symbolic variables, see: <http://www.mathworks.com/help/symbolic/symbolic-variables-express...

13 years 前 | 1

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Remove the vowels
Remove all the vowels in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill' Output s2 is 'Jck nd Jll wn...

13 years 前

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Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

13 years 前

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Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

13 years 前

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can someone explain to me what is this entire code means?
This code finds log10 of the values of some vector (x). The line: y = -Inf*ones(size(x)); is meaningless in this part o...

13 years 前 | 0

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folderFiles.m
Reads filename contents of a folder.

13 years 前 | 1 次下载 |

5.0 / 5

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Return the 3n+1 sequence for n
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

13 years 前

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

13 years 前

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Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

13 years 前

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

13 years 前

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Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

13 years 前

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

13 years 前

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

13 years 前

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