Chaya N

332 total contributions since 2016

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All capital?
Are all the letters in the input string capital letters? Examples: 'MNOP' -> 1 'MN0P' -> 0

más de 4 años ago

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inner product of two vectors
inner product of two vectors

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Back to basics 15 - classes
Covering some basic topics I haven't seen elsewhere on Cody. Return the class of the input variable.

más de 4 años ago

Answered
How can I solve this error ... Error using * Inner matrix dimensions must agree. Error in Naivayes (line 74) ProbN = prob_table(A11,A1 - 1,1) *prob_table(A21,A2 - 1,1) *prob_table(A31, A3 - 1,1) *prob_table(A41,A4 - 1,1) *fy(1);
Please check the values of the variables A1, A2, A3 and A4. These should be scalar and greater than 1, otherwise they generat...

más de 4 años ago | 0

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Tracks are the same length but wont concatenate
From your data given above, one of them is a row and the other is a column. They should both read 1-by-566272 *OR* 566272-by-1. ...

más de 4 años ago | 1

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Trouble running 5 separate data sets through one code and saving the answers for each data set.
The loop scheme you have here is not serving any purpose. I suggest creating a function out of the lines of code that you have I...

más de 4 años ago | 0

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I have two images of the same matrix size (512x512) but different pixel spacing. One image has a pixel spacing of 0.7 and the other 0.4. How do I get the two images to have the same pixel spacing and still maintain the matrix size of both images.
You could extract the image pixel values into new arrays. This would preserve the size of the images and ignore pixel spacing (o...

más de 4 años ago | 0

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Create largest N digit number
Try this (10^N) - 1

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How can I use wcodemat to re-scale an intensity/gray-scale image?
You could get a map of your original grayscale image X using the |<https://mathworks.com/help/matlab/ref/contrast.html contrast>...

más de 4 años ago | 1

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Answered
Hi I have a matrix that is 100x100 and i would like to know if its possible to change the font size of the matrix when it shows as output ?
You might find some useful information here: <https://mathworks.com/help/matlab/matlab_env/change-fonts.html>

más de 4 años ago | 0

Answered
How to remove subplot grey space between images
The best (and possibly only) way to do that would be to create a new, larger image where you combine all your smaller subplots i...

más de 4 años ago | 1

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Replace elements between two matrices
Try the |<https://mathworks.com/help/matlab/ref/setxor.html setxor>| function. You may need to tweak the directionality of the i...

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Reindex a vector
You are given two vectors of equal length. Vector N has numeric values (no Inf or NaN) while vector IDX has integers. Place th...

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intersection of matrices
Given two matrices filled with ones and zeros, determine if they share a common row, column entry. These matrices are of identi...

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Getting the indices from a matrice
Getting the indices from a matrice. Inspired by Problem 645. Getting the indices from a vector by the great Doug Hull. Given a...

más de 4 años ago

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We love vectorized solutions. Problem 1 : remove the row average.
Given a 2-d matrix, remove the row average from each row. Your solution MUST be vectorized. The solution will be tested for ac...

más de 4 años ago

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Create logical matrix with a specific row and column sums
Given two numbers *|n|* and *|s|*, build an |n-by-n| logical matrix (of only zeros and ones), such that both the row sums and th...

más de 4 años ago

Solved

Is my wife really right?
For every input, output the string 'yes' once. Example: [yes1, yes2] = YesSheIs('Am I right?', 'Do you love me?') yes1 = '...

más de 4 años ago

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Back to basics 10 - Max Float
Covering some basic topics I haven't seen elsewhere on Cody. Return the largest positive floating-point number MATLAB can han...

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Make a random, non-repeating vector.
This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...

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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!...

más de 4 años ago

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Replace Vector Elements
Replace all elements in a vector which are equal to or smaller than zero with 0.1. Example: A = [1 2 3 -1 0 2 -3 -80]; ...

más de 4 años ago

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Number of 1s in a binary string
Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

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Back to basics 23 - Triangular matrix
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, return a matrix with all elements above a...

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Replace NaNs with the number that appears to its left in the row.
Replace NaNs with the number that appears to its left in the row. If there are more than one consecutive NaNs, they should all ...

más de 4 años ago

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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 ...

más de 4 años ago

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Insert zeros into vector
Insert zeros after each elements in the vector. Number of zeros is specified as the input parameter. For example: x = [1 ...

más de 4 años ago

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Remove the two elements next to NaN value
The aim is to *remove the two elements next to NaN values* inside a vector. For example: x = [6 10 5 8 9 NaN 23 9 7 3 21 ...

más de 4 años ago

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Specific Element Count
Given a vector _v_ and a element _e_, return the number of occurrences of _e_ in _v_. Note: NaNs are equal and there may be n...

más de 4 años ago

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Matrix indexing with two vectors of indices
Given a matrix M and two index vectors a and b, return a row vector x where x(i) = M(a(i),b(i)).

más de 4 años ago