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Question
Stack overflow in mex
Hi Friends, I have one confusion regarding a mex code. The code is giving me a segmentation fault. #include<math.h> #...
meer dan 7 jaar ago | 4 answers | 0
4
answersQuestion
Matlab Coder : Size Mismatch Issue
Hi, I am using MATLAB coder to generate mex files for the matlab. Here is one error I am getting in line x2_est_sym = x...
meer dan 7 jaar ago | 2 answers | 0
2
answersQuestion
MATLAB expression 'R_loc' is not of the correct complexness.
Hi, This is an issue I am getting using matlab coder. While declaring C the type I used was complex. But during run time some ...
meer dan 12 jaar ago | 0 answers | 0
0
answershow to covariance of 16*16 matrix
cov(matrix). See this http://www.mathworks.in/help/matlab/ref/cov.html
meer dan 12 jaar ago | 0
Function classify in matlab
The classifiers accuracy can never be 100%. The classifiers gets trained on training set and then work on the data. Porbably you...
meer dan 12 jaar ago | 0
How to extract pixel values in 8-bit binary format from an image?
Once you extract the pixel from image quantize it to (0,256) fixed point representation. Let the pixel be p(i,j) the output shou...
meer dan 12 jaar ago | 0
How to plot four variables value in XY graph
use hold all after first plot.
bijna 13 jaar ago | 0
Question
MEXCallMatlab very slow. Suggest alternate
Hi, I am working on a MEX file. I am using MEXCallMatlab which is very slow to call matlab inbuilt function as well as user de...
bijna 13 jaar ago | 1 answer | 0
1
answerSolved
Determine if input is odd
Given the input n, return true if n is odd or false if n is even.
bijna 13 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...
bijna 13 jaar ago
Solved
Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...
bijna 13 jaar ago
Solved
Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...
bijna 13 jaar ago
Solved
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...
bijna 13 jaar ago
Solved
Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...
bijna 13 jaar ago
how to choose homogeneous blocks from image in matlab
Segment the image and pick up any region.
bijna 13 jaar ago | 0
Solved
Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...
bijna 13 jaar ago
taking part of the picture
Here is an error you can't use imshow on an image. You have to first read it in a variable then use imshow on that. imshow(ROI) ...
bijna 13 jaar ago | 0
| accepted
Solved
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]
bijna 13 jaar ago
Solved
Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.
bijna 13 jaar ago
Solved
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 ...
bijna 13 jaar ago
Solved
Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...
bijna 13 jaar ago
How can I reduce the time complexity of this matlab code.. Its taking lot of time to execute when an image is fed as input.
Vectorize your code. Example you don't need inner loops you can use sum to get the value of counts. In the outer two loops you a...
bijna 13 jaar ago | 1
| accepted
How can I find a number in a matrix?
http://www.mathworks.in/help/matlab/ref/find.html. see it.
bijna 13 jaar ago | 0
| accepted
find the position of a specific cell entry
[truefalse, index] = ismember('USA', B)
bijna 13 jaar ago | 0
| accepted
Scaling the values to specific range
D1=int16(S*32768) maps your any integer S*32768 outside the range to 32768 or for S>1 the output will be 32768(2^15) otherwise i...
bijna 13 jaar ago | 0
| accepted
Converting decimal value to binary
http://www.mathworks.in/help/matlab/ref/dec2bin.html. See this. It will do 2's complement for negative numbers
bijna 13 jaar ago | 0
| accepted
Multiple Dice Rolls Help
Here is what I feel will work fine % function SumDice=RollDice(NumDice,NumRolls) distribution=zeros(NumDice*6,1); for rol...
bijna 13 jaar ago | 0
how to see x and y cordinate in the plot beyond its end point?
HI Satish, If you dont have any information about the values beyond 5 and 25 then you have to extrapolate. Well the typ...
bijna 13 jaar ago | 0
