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Using assignin command in guide
1. You cannot index into variables while using assignin. Therefore trying to assign the value 'red' to C(a,:) will not work. ...

13 years ago | 0

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How to work with Simulink project and libraries?
You can handle the common libraries within SVN using the 'externals' definition for both projects, this way you could ensure the...

13 years ago | 0

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Back to basics 6 - Column Vector
Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector, output true or false whether it is a colu...

13 years ago

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Balanced number
Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

13 years ago

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Program an exclusive OR operation with logical operators
Program an exclusive or operation *without* using the MATLAB function xor. Use logical operators like |, &, ~, ... instead. ...

13 years ago

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Compute cumulative sum of a column vector without for loop
A=(1:10)'; % column vector spacing = 4; % scalar solution = arrayfun(@(n) sum(A(n):A(n+spacing)), 1:length(A)-spaci...

14 years ago | 1

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Sorting
line(1,:)= [1 2 3 4 5 6 7 8 9 10]; line(2,:)= [1.3 -2.3 4.245 12.3 -4.5 9.43 8.34 -5.3 3.54 6.4]; [line(2,:), line(1...

14 years ago | 0

Answered
Why can't I read the videos with MATLAB on linux?
The file formats you mentioned are purely container formats. It is the codec used to encode the underlying video streams which w...

14 years ago | 0

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Appending two or more .mat files
You can also load data into a structure, and manipulate it from there. For example: FILE_A = load('ECU_1.mat'); FILE_B ...

14 years ago | 0

Answered
How to access displayed axis limits when scaling is logarithmic and data partly negative?
After you set 'axis tight' call the following commmand: set(gca, 'YLimMode', 'auto') Then 'ylim' should return: [10...

14 years ago | 0

Answered
how to assign names to each bar of a bar chart
You can simply add the names as the y-tick labels. somedata=randn(1,3); somenames={'mike'; 'steve'; 'alex' }; barh(...

14 years ago | 8

| accepted

Answered
combine date & time
Be careful when working with arrays in this manner. The terms day(n) and time(n) probably don't contain what you are expecting t...

14 years ago | 0

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how to create plot of inverse data?
Is it the y-axis you want to reverse? If so: axis ij

14 years ago | 0

Answered
Write a function, using arrays-vectors,' input'& 'fprintf','if' statement', 'end', 'fgetl' etc with good programming practices...like putting comments %
*HINT:* Don't post your assignments/homework word for word online, as if even someone does provide the answers a simple online s...

14 years ago | 0

Answered
converting double to string
To convert string to double: x = 'AVECAESAR'; y = double(x); To convert double to string: x = [65 86 69 67 65 69...

14 years ago | 0

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UTC time
Grab the following file from the File Exchange: http://www.mathworks.com/matlabcentral/fileexchange/7244 Then call: x...

14 years ago | 0

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Solved


Back to basics 20 - singleton dimensions
Covering some basic topics I haven't seen elsewhere on Cody. Remove the singleton dimensions from the input variable (e.g. if...

14 years ago

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Sorting
Assume that x is an n-by-2 matrix. The aim is to return the first column of x, but sorted according to the second column. Exa...

14 years ago

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Hackathon: the beginnings
I am thinking of a number between 1 and 10000... can you guess what this number is? *Description* The test suite has rando...

14 years ago

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Help!! (Function definitions are not permitted in this context.)
What you are doing is mixing a script and a function within a single m-file. Remove the first four lines: numer_poly = [600...

14 years ago | 0

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Nearest
*Description* Find the value and index of the element in vector _x_ that is nearest to value _y_. _y_ should be able to be a ...

14 years ago

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First N Perfect Squares
*Description* Return the first N perfect squares *Example* input = 4; output = [ 1 4 9 16 ];

14 years ago

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Love triangles
Given a vector of lengths [a b c], determines whether a triangle with non-zero area (in two-dimensional Euclidean space, smarty!...

14 years ago

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Scrabble Scores
Given a word, determine its score in <http://en.wikipedia.org/wiki/Scrabble Scrabble>. The input string will always be provide...

14 years ago

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Pattern matching
Given a matrix, m-by-n, find all the rows that have the same "increase, decrease, or stay same" pattern going across the columns...

14 years ago

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Remove NaN ?
input -> matrix (n*m) with at least one element equal to NaN; output -> matrix(p*m), the same matrix where we deleted the enti...

14 years ago

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Given an unsigned integer x, find the largest y by rearranging the bits in x
Given an unsigned integer x, find the largest y by rearranging the bits in x. Example: Input x = 10 Output y is 12 ...

14 years ago

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Cell joiner
You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

14 years ago

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Is my wife right? Now with even more wrong husband
Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

14 years ago

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Lose control
Remove all characters that are below space in ASCII value.

14 years ago

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