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Solve a System of Linear Equations
*Example*: If a system of linear equations in _x₁_ and _x₂_ is: 2 _x₁_ + _x₂_ = 2 _x₁...
約4年 前
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Verify Law of Large Numbers
If a large number of fair N-sided dice are rolled, the average of the simulated rolls is likely to be close to the mean of 1,2,....
約4年 前
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Find the Oldest Person in a Room
Given two input vectors: * |name| - user last names * |age| - corresponding age of the person Return the name of the ol...
約4年 前
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Convert from Fahrenheit to Celsius
Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...
約4年 前
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Calculate Amount of Cake Frosting
Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...
約4年 前
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how can I edit a matrix and rename it at the same time?
You can do it like this: my_matrix = rand(4,9); edited_matrix = my_matrix; edited_matrix(:,8) = [2;4;6;1];
how can I edit a matrix and rename it at the same time?
You can do it like this: my_matrix = rand(4,9); edited_matrix = my_matrix; edited_matrix(:,8) = [2;4;6;1];
約5年 前 | 0
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Different colours for arrows in quiver plot
Create a circular colormap: cmap = colormap(hsv(360)); In the loop: compute the angle and an index into the colormap from...
Different colours for arrows in quiver plot
Create a circular colormap: cmap = colormap(hsv(360)); In the loop: compute the angle and an index into the colormap from...
約5年 前 | 1
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how do i change subfunctions to a switch
switch question case 1 % code of function 1 case 2 % code of function 2 case 3 % code of function 3 otherwise ...
how do i change subfunctions to a switch
switch question case 1 % code of function 1 case 2 % code of function 2 case 3 % code of function 3 otherwise ...
約5年 前 | 0
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Find the perfect overlay of 2 maps of points
You can maximize the number of perfect matches, that is the number of red points with zero distance to a blue point.
Find the perfect overlay of 2 maps of points
You can maximize the number of perfect matches, that is the number of red points with zero distance to a blue point.
約5年 前 | 0
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one two three four
Replicate B such that is is as long or longer than A, then cut it to the length of A; B = repmat(B, 1, ceil(numel(A)/numel(B)...
one two three four
Replicate B such that is is as long or longer than A, then cut it to the length of A; B = repmat(B, 1, ceil(numel(A)/numel(B)...
約5年 前 | 0
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Error using horzcat Dimensions of matrices being concatenated are not consistent.
You can only concatenate vectors horizontally if they have the same number of rows. But here you have 256 and 18 rows. sp this d...
Error using horzcat Dimensions of matrices being concatenated are not consistent.
You can only concatenate vectors horizontally if they have the same number of rows. But here you have 256 and 18 rows. sp this d...
約5年 前 | 0
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Text in while loop creating matrix
You have to use cell arrays if you want to mix text and numbers. And fprintf returns the number of printed bytes, so you directl...
Text in while loop creating matrix
You have to use cell arrays if you want to mix text and numbers. And fprintf returns the number of printed bytes, so you directl...
5年以上 前 | 0
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could anyone help me how to check the idx position containing value is not equal to zero
To check if any value of idx is zero, you can use any(idx == 0)
could anyone help me how to check the idx position containing value is not equal to zero
To check if any value of idx is zero, you can use any(idx == 0)
5年以上 前 | 0
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I have a 101 by 23 matrix, where first column is the ID of persons. I want to extract each value of every person <1.5, and store them in a new matrix, SO resultant matrix should have all values <1.5 and rest can be substituted to 0.
lowscale = numData; lowscale(lowscale < 1.5) = 0;
I have a 101 by 23 matrix, where first column is the ID of persons. I want to extract each value of every person <1.5, and store them in a new matrix, SO resultant matrix should have all values <1.5 and rest can be substituted to 0.
lowscale = numData; lowscale(lowscale < 1.5) = 0;
5年以上 前 | 0
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Ich brauche Hilfe mit der Matrix
1:1 umgesetzt muss es doch 1 statt l heißen: verbraucher_AC=everything(s,1); leistung_AC=Leistungswert(s,1);
Ich brauche Hilfe mit der Matrix
1:1 umgesetzt muss es doch 1 statt l heißen: verbraucher_AC=everything(s,1); leistung_AC=Leistungswert(s,1);
5年以上 前 | 1
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How can I generate random number between 1 and 10, and at the same time I want to exclude number 3 & 6?
x = setdiff(1:10, [3, 6]); r = x(randi(numel(x)));
How can I generate random number between 1 and 10, and at the same time I want to exclude number 3 & 6?
x = setdiff(1:10, [3, 6]); r = x(randi(numel(x)));
6年弱 前 | 4
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using 2 indexs for loop
for i=1:length(mHome) for k=1:2:size(mHome,2)-1 output1(i,k)=pdist([mHome(i,k:k+1);mBall(i,1:2)]); end end
using 2 indexs for loop
for i=1:length(mHome) for k=1:2:size(mHome,2)-1 output1(i,k)=pdist([mHome(i,k:k+1);mBall(i,1:2)]); end end
6年弱 前 | 1
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I keep getting undefined function when preallocating
index = 1:30; % Preallocate S1QAmb = zeros(size(index)); % index has to be defined before it can be used for i = index S...
I keep getting undefined function when preallocating
index = 1:30; % Preallocate S1QAmb = zeros(size(index)); % index has to be defined before it can be used for i = index S...
6年弱 前 | 0
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How to save the output of a loop with sequential file numbers.
for i:size(bounding_box, 1) face_crop = imcrop(I, [227,227]) filename = sprintf('%02d.jpg', 2*i - 1); imwrite(fac...
How to save the output of a loop with sequential file numbers.
for i:size(bounding_box, 1) face_crop = imcrop(I, [227,227]) filename = sprintf('%02d.jpg', 2*i - 1); imwrite(fac...
6年弱 前 | 0
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Common legend for multiple histograms in subplots
Set the FaceColor explicitly before calling legend: set(line1, 'FaceColor', 'r') set(line2, 'FaceColor', 'g') set(lin...
Common legend for multiple histograms in subplots
Set the FaceColor explicitly before calling legend: set(line1, 'FaceColor', 'r') set(line2, 'FaceColor', 'g') set(lin...
6年以上 前 | 0
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how to create a video with a looming stimulus
This version works without exporting. In the code you can first choose 'test' to see if the sequence of images is what you want ...
how to create a video with a looming stimulus
This version works without exporting. In the code you can first choose 'test' to see if the sequence of images is what you want ...
6年以上 前 | 0
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Incorrect number of output arguments for 'pre_test_fixpt'. Expected 1, but found 2.
You show code for pre_test, but the error is about pre_test_fixpt. Have a look at how you call this function in your code.
Incorrect number of output arguments for 'pre_test_fixpt'. Expected 1, but found 2.
You show code for pre_test, but the error is about pre_test_fixpt. Have a look at how you call this function in your code.
6年以上 前 | 0
回答済み
Why am I getting two different plots for the exact same matrix?
Maybe it helps if you transpose the matrix to get it right.
Why am I getting two different plots for the exact same matrix?
Maybe it helps if you transpose the matrix to get it right.
6年以上 前 | 0
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here I am trying to get the random matrix with the elements only 1 and 0 where none of columns and rows can be 0 only and also the number of 0s and 1s should be in a percentage of 30% and 70%.
N=5; % size ok = false; maxiter = 1000; i = 1; while ~ok & i < maxiter ...
here I am trying to get the random matrix with the elements only 1 and 0 where none of columns and rows can be 0 only and also the number of 0s and 1s should be in a percentage of 30% and 70%.
N=5; % size ok = false; maxiter = 1000; i = 1; while ~ok & i < maxiter ...
6年以上 前 | 1
回答済み
Setting certain pixels in a grayscale image to RGB (red) for MIP
From the above discussion, I came up with this solution: % fake some data X = rand(10, 10, 23); N = prod(size(X)); ...
Setting certain pixels in a grayscale image to RGB (red) for MIP
From the above discussion, I came up with this solution: % fake some data X = rand(10, 10, 23); N = prod(size(X)); ...
6年以上 前 | 1
回答済み
Calculate weighted average of a 2D matrix
X = rand(376, 481); w = rand(1, size(X, 2)); Xw = bsxfun(@times, X, w); m = mean(Xw, 2);
Calculate weighted average of a 2D matrix
X = rand(376, 481); w = rand(1, size(X, 2)); Xw = bsxfun(@times, X, w); m = mean(Xw, 2);
6年以上 前 | 0