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Combine the first and last names

MATLAB R2016 provides a rich set of functions to work with string arrays. In this problem, you will be given two string arrays o...

6 years ago

Solved

Words Count: A String Array Approach

Given an input character vector consisting of words, punctuation marks, white spaces, and possibly newline characters (\n), arra...

6 years ago

Solved

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...

6 years ago

Answered

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...

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...

6 years ago | 0

Answered

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...

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...

6 years ago | 0

Answered

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...

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...

6 years ago | 0

Answered

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...

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...

6 years ago | 1

Answered

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 .... ...

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 .... ...

6 years ago | 0

Answered

how can i solve this equation on matlab?

<https://it.mathworks.com/help/matlab/ref/ode45.html>

how can i solve this equation on matlab?

<https://it.mathworks.com/help/matlab/ref/ode45.html>

6 years ago | 0

Answered

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...

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...

6 years ago | 2

| accepted

Answered

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) ...

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) ...

6 years ago | 1

| accepted

Answered

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...

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...

6 years ago | 0

Answered

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...

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...

6 years ago | 0

| accepted

Answered

Custom Dendrogram Ordering Implementation

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

Custom Dendrogram Ordering Implementation

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

6 years ago | 0

| accepted

Answered

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...

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...

6 years ago | 0

| accepted

Answered

Setting Viewpoint with Azimuth, Elevation, and distance

Hi Viet, in order to control visualization in the current axes, consider these parameters also: CameraPosition CameraPos...

Setting Viewpoint with Azimuth, Elevation, and distance

Hi Viet, in order to control visualization in the current axes, consider these parameters also: CameraPosition CameraPos...

6 years ago | 1

| accepted

Answered

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...

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...

6 years ago | 0

Answered

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...

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...

6 years ago | 1

| accepted

Answered

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 ; ...

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 ; ...

6 years ago | 0

Answered

obtain cluster label on data

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

obtain cluster label on data

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

6 years ago | 0

| accepted

Answered

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...

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...

6 years ago | 1

| accepted

Answered

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...

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...

6 years ago | 0

Answered

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...

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...

6 years ago | 0

Answered

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); ...

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); ...

6 years ago | 0

Solved

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...

6 years ago

Answered

Normal Distribution Probability Finder

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

Normal Distribution Probability Finder

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

6 years ago | 4

| accepted

Solved

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 years ago

Solved

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 years ago

Solved

Quote Doubler

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

6 years ago

Solved

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 years ago