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i want to mark the highest point of any non-black pixel within the image to find the max point.
row=find(sum(BWImage,2)==0,1,'last')+1; col=find(BWImage(row,:)~=0); row=row*ones(size(col)); Points=...

fast 11 Jahre vor | 1

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How to repeat a row by a certain factor
% Creating sample data A=[2 2 2; 3 3 3; 4 4 4]; nRep=[2,1,3]; % Constructing A_New as instructed. A_new=c...

fast 11 Jahre vor | 0

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How to use a char variable name as a numeric variable
Similar question has been asked. Try the answers on this post: http://www.mathworks.com/matlabcentral/answers/213097-havin...

fast 11 Jahre vor | 0

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How do I get the least used character in the text file ?
%Sample text; equivalent to your a txt='this is a sample text.'; uniqueChars=unique(txt(isletter(txt))); ...

fast 11 Jahre vor | 0

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Calculating the averages of different groups of values
x=[3 3 3 4 4 5 5 5 5 3 11]; y=[1 2 4 5 7 1 1 8 10 10 1]; groupBounds=[0; find(diff([x(:); NaN])~=0)]; groupAverage=a...

fast 11 Jahre vor | 1

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Indexing polynomials using 'for' loop
%% Solution 1: (not recommended) p1 = [0 2 0 -2 6 -1]; p2 = [1 3 0 -2 0 0]; p3 = [0 0 3 1 0 -10]; p4 = [0 0 0 -4 1...

fast 11 Jahre vor | 1

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Gelöst

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...

fast 11 Jahre vor

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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 ...

fast 11 Jahre vor

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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.

fast 11 Jahre vor

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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:...

fast 11 Jahre vor

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Is my wife right?
Regardless of input, output the string 'yes'.

fast 11 Jahre vor

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How to evaluate a derivative of a function at a point?
because subs replaces x with one. Doesn't evaluate. So diff( cos(x) -x ) returns -sin(x) -1 and then you replace x with one and...

fast 11 Jahre vor | 7

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fsolve to find circle intersections
% Center of the circles C1=[0,0]; C2=[5,0]; % Radius of the circles R1=3; R2=5; % x1(x,y) on the...

fast 11 Jahre vor | 0

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How to generate two subsets randomly from a matrix without repetition?
So we have matrix A with 10 elements. We want to randomly divide it into two *non-overlapping* subset, one with 4 elements anoth...

fast 11 Jahre vor | 2

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Can I write a Genetic algorithm code for multiple choice questions?
use MATLAB's <http://www.mathworks.com/help/gads/ga.html GA()> command. Since you have four choices, then you are pretty much i...

fast 11 Jahre vor | 0

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Sum of duplicate dates in an array
I would use <http://www.mathworks.com/help/stats/grpstats.html grpstat()> as follow: if you just want to sum by the group her...

fast 11 Jahre vor | 0

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Find the rows in matrix B that contain the two numbers in each row of matrix A, in every possible order
have you considered parallel processing? You could start MATLAB parallel workers using: parpool % if you don't it would ...

fast 11 Jahre vor | 2

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how can I use my function on 3*3 blocks?
inputData=zeros(10,10); inputData(randi(100,[15,1]))=1 inputData = 0 0 0 0 0 0 0 ...

fast 11 Jahre vor | 0

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replace number by string
Well, a quick solution would be: valueCell={ 23,23,23, ... 9997,9997,9997,9997,9997,9997,9997, ... ...

fast 11 Jahre vor | 0

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Choosing the best parameters for strategy with genetic algorithm
Let's say you have successfully coded strategy function which provided seven input parameters, it would give you the 'Sharpe Rat...

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how to select data based on month
Here is what you should do: I have assumed that you store those two columns in a csv file as follow: % reading t...

fast 11 Jahre vor | 2

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Surface plot based on cell center values
Data=rand(10,10); imagesc(s); check <http://www.mathworks.com/help/matlab/ref/imagesc.html imagesc()> for detail des...

fast 11 Jahre vor | 1

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Table "Vertical Lookup", how to do it?
Look up <http://www.mathworks.com/help/matlab/ref/join.html join()> and <http://www.mathworks.com/help/matlab/ref/outerjoin.html...

fast 11 Jahre vor | 0

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GA in Matlab 2014???
Since you have discrete values for x1 to x5 you need to define it as an integer problem. (I know x1,x2,x3 are not integer input ...

fast 11 Jahre vor | 0

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merge two tables in matlab
% Creating Table1 T1=table(['A';'B';'C'],[2;5;6],[3;7;8],[4;8;6],'VariableNames',{'SampleName','P1','P2','P3'}) T1 = ...

fast 11 Jahre vor | 2

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Insert rows from one matrix into another
use <http://www.mathworks.com/help/matlab/ref/sortrows.html sortrows()> command as follows: A = [2373 259 18.10 23.80 0.20...

fast 11 Jahre vor | 0

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how to create 1*101 of some integer array?
Yo have: A = zeros(1,101); and then later you have cumtrapz(x,-4*A); all elements of *A* are zero so *-4*A* is ...

fast 11 Jahre vor | 0

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How to assign a particular value to each element of a structure array for a particular field?
n=3; %initilizing some test structure s=struct('f',cell(n,1)); % generate r vector r=mat2cell(rand(1,n...

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How do I access structrure fields from input parser optional inputs
That's not how *varargin* works if you have function ptest(s1,varargin) .... end then once you call it as: ...

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My matlab code is giving me this error "Too many outputs requested". If someone can help me solve this?
Don't know why *cloud = cloudiness{matchrow, 2};* is causing too many output request error. Are you sure the error is for that l...

fast 11 Jahre vor | 0

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