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Words Count: A String Array Approach
Given an input character vector consisting of words, punctuation marks, white spaces, and possibly newline characters (\n), arra...

5年以上 前

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How Many Months Until It's Today Again?
Given a particular date, calculate how many months must pass before that same day of the month occurs on the same day of the wee...

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how to concatenate mat files of different row sizes but same column size vertically?
In this line of code: Fv_ROI_concatenated = [a.TwoD_fv_roi_rangefilt_bdip,b.TwoD_fv_roi_rangefilt_bilateral,c.TwoD_fv_roi_r...

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Better skeletonization of an image to found branchpoints
Dilate your image before skeletonize it. Try this: %read image G = imread('grid.jpg'); G = im2bw(rgb2gray(G)); %di...

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Is there an clustering algorithm with which I can declare expected centroid in advance?
The <https://it.mathworks.com/help/stats/kmeans.html k-means clustering> is what you need. You can start the algorithm by select...

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Creatig a matrix from variables in workspace
How did you get these variables? It is not good practice to handle workspace variables after their definition. Better saving...

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how to save values in variable from loop
Save vector |a| before printing: a = 1:10; for k=a fprintf('%d\n',k); end a Outputs: 1 2 .... ...

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how can i solve this equation on matlab?
<https://it.mathworks.com/help/matlab/ref/ode45.html>

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Legend horizontal orientation doesn't work when extracting icon handles
As far as I know the syntax |[lgd,icons,plots,txt] = legend(..)| is not reccomended. Notice in fact that by simply calling |icon...

5年以上 前 | 2

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How to make a road lane for a synthetic image in gray scale?
Here it is: %create one element Z = zeros(100,101); %lateral lanes Z(:,[11:15,87:91]) = 1; %mid lane (dashed) ...

5年以上 前 | 1

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Finding real roots of a cubic equation
To force the |vpasolve| finding only real solutions you cannot use |assume|. If you know the real solution is only one a workaro...

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How do I remove/replace border pixels from my image?
You basically don't need your |interior_blackPixels|. Indeed, your expected image is obtained by simply setting |outer_blackPixe...

5年以上 前 | 0

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Custom Dendrogram Ordering Implementation
Apparently, none of the available functionalities of |optimalleaforder| does the work. So here it is a function that runs throug...

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Find the x value from a specific iteration of fmincon
From the help page about Output Functions <https://it.mathworks.com/help/matlab/math/output-functions.html Output Functions> you...

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Setting Viewpoint with Azimuth, Elevation, and distance
Hi Viet, in order to control visualization in the current axes, consider these parameters also: CameraPosition CameraPos...

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How to plot a function file
Given a vector |y| of dice outcomes, plot the stairwise graph like this: y = [0,3,5,9,2]; X = [0,repelem(1:length(y)-1,2...

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Boundary function fails, R2016b
Hi Jukka, if you look at the plot of the boundary without superimposing it to the circles you can see (see first image below) th...

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FFT Convolution on Wav File
Is your audio file |x| (loaded with |[x Fs]=audioread('drums.wav');| ) stereo? Because in this case the line X = fft( [x ; ...

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obtain cluster label on data
If you applied |kmeans| function like this: idx = kmeans(X,k) then |idx| is the vector containing the labels.

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K-means: see the initial centroids
Yes it is possible. |kmeans| allows you to set option parameters via the |statset| function. In the help page <https://it.m...

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Problem Fitting data to 3 Gaussians
More efficient using built-in code to fit Guassian distributions. Try look at this function which allows you to choose the numbe...

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How do I put minor ticklabel on and ticklabel off ?
One solution can be to set y-limits to larger values, and then force the labels to be the original ones. This way, the labels wi...

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How to map the values from 0-320 to 0-29
Just multiply your values by 29/320; k = 29/320; %generate some random numbers between 0 and 320 x = 320*rand(5); ...

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Stuff the Board
You have a stack of tiles to put onto an array-like playing board. Each tile has a number (always an integer), and the board var...

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Normal Distribution Probability Finder
pp = makedist('Normal','mu',0,'sigma',1); yourP = 1-cdf(pp,-2.125)

5年以上 前 | 4

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Generalised Hamming Number
Inspired by Project Euler n°204 and Problem 1308 by James A generalised Hamming number of type n, has no prime factor larger ...

6年弱 前

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Return a list sorted by number of occurrences
Given a vector x, return a vector y of the unique values in x sorted by the number of occurrences in x. Ties are resolved by a ...

6年弱 前

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Quote Doubler
Given a string s1, find all occurrences of the single quote character and replace them with two occurrences of the single quote ...

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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 ...

6年弱 前

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Pangrams!
A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

6年弱 前

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