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Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

5年以上前

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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

5年以上前

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Rescale Scores
Each column (except last) of matrix |X| contains students' scores in a course assignment or a test. The last column has a weight...

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Calculate Inner Product
Given two input matrices, |x| and |y|, check if their inner dimensions match. * If they match, create an output variable |z|...

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5年以上前

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5年以上前

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Crop an Image
A grayscale image is represented as a matrix in MATLAB. Each matrix element represents a pixel in the image. An element value re...

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Calculate BMI
Given a matrix |hw| (height and weight) with two columns, calculate BMI using these formulas: * 1 kilogram = 2.2 pounds * 1 ...

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Plot Damped Sinusoid
Given two vectors |t| and |y|, make a plot containing a blue ( |b| ) dashed ( |--| ) line of |y| versus |t|. Mark the minimum...

5年以上前

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Calculate a Damped Sinusoid
The equation of a damped sinusoid can be written as |y = A.ⅇ^(-λt)*cos(2πft)| where |A|, |λ|, and |f| ...

5年以上前

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Solve a System of Linear Equations
*Example*: If a system of linear equations in _x&#8321_ and _x&#8322_ is: 2 _x₁_ + _x₂_ = 2 _x₁...

5年以上前

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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,....

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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...

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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...

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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...

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ginput tic tac toe
You can set xlim and ylim for your axes to [0 3]. Then you can get the [x,y] = ginput(1). Another option would be to use 9 ...

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compiled matlab .net assembly doesn't work on different computer
You need to install the MATLAB runtime to use the .net assembly.

5年以上前 | 1

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One-hot encoding

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How to perform logical AND on intervals of contiguous locations
You can group based on the values of x. gid = cumsum(x ~= circshift(x,1)); if(gid(1) == 0) gid = gid + 1; end a = splitappl...

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How to Import/parse sparse data from a text file into MATLAB?
After some testing, it seems your file can be read by setting delimiter to 3x spaces. You can combine this with the rest of you...

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Make App designer app files inaccessible
According to MATLAB documentation, protecting simulink model requires simulink coder license. References https://www.mathwork...

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Unevenly Map Data to an RGB Map?
You can use the colormapeditor GUI to interactively create the colour map. https://www.mathworks.com/help/matlab/ref/colormap...

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Passing varibales between two callback in GUI
Use the function setappdata and getappdata instead. An example is shown here in the documentation. https://www.mathworks.com/h...

5年以上前 | 1

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Invalid training data. The output size (8) of the last layer does not match the number of classes (6).
Your final layer has 8 outputs, however your image data store only has 6 labels / classes. If you expect there to be 8 classes, ...

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Unable to run two function simultanously under App Designer
MATLAB is single threaded, if you wish to run tasks in parallel, you have to use parpool from parallel computing toolbox.

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How to randomize the order of training images of a CNN?
if isShuffleable(Train_imds) newds = shuffle(Train_imds); disp('Shuffling successful.') else disp('Datastore is ...

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strange cell array to matrix
Use the function readtable (or readmatrix) to load your file. opts = delimitedTextImportOptions('NumVariables',2,'Delimiter',';...

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Problem allocating 24 workers using parpool
Perhaps you can try core = feature('numcores'); pool = parpool('local',core); disp(['Pool has been started with Num Workers '...

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Copy files, save the content, and change files name from code
From your question i assume the names in cell array are without the extensions. ext = '.dat'; %Cell_Array_A %Cell_Array_B f...

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Import series of CSV files and perform data crunching
You need to set the NumHeader Lines to ignore the first 6 lines. folderwcsv = 'somepath'; csvs = dir(fullfile(folderwcsv,'*.cs...

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