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Extracting specific data from multiple excel files and create a single matrix from those
You can use readmatrix (assuming all values are numeric, otherwise use readtable) or fileDatastore to read those files. Somethin...

2 years ago | 1

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Printing a MATLAB table on the console which contains both characters and ints
One simple way is to convert them to categorical, but if you're doing something with that variable, extra care should be taken. ...

2 years ago | 0

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Intersect table with Id scattered
If both tables don't share same key ids, you can simply join them as: tOne = table(["x1", "x2", "x3"].', (1:3).', 'VariableName...

2 years ago | 0

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Access data from table and assign to variables
This might work tab = table({'Car'; 'Bike'; 'Cycle'}, [50; 20; 5], [2; 1; 0],... 'VariableNames', {'Vehicle', 'speed', 'fu...

2 years ago | 0

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Answered
Is it possible to use non-image data as inputs for the Deep Network Designer App?
Technically yes you can, I assume something like this would work: dlData = reshape(data', [1, 1, size(data, 2), size(data, 1)])...

2 years ago | 0

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Find places before or after zeros in vector
a = [0 0 0 1 1 1 0 0 1 1 1 0 1 1 1 0 1 1 0]; before = [0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0]; after = [0 0 0 0 0 1...

2 years ago | 1

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Answered
How many computers can I associate with my educational license?
From Pricing and Licensing under educational license: The products can be activated on up to four different computers, provide...

2 years ago | 0

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How to save local variables (which are within a called function)
I don't know what's the use of doing this. But given what you need, you can do something like this: function dydt = vdp1(t,y) ...

2 years ago | 0

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how to extract "F-statistic vs. constant model" value for fitnlm programmatically
I don't know if MATLAB has another helper function to fetch F-test stat., but you can extract it with information available in f...

2 years ago | 0

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Replacing certain values in table with NaN based on different conditions
For table, you need to directly access the variable names/column indices. so, T(extremevalues) = NaN; won't work. This may hel...

2 years ago | 0

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Why do I get correlation result NaN?
Unless you have a good reason to impute your missing data, you can remove missing values from both vectors. nanidx = isnan(A) |...

2 years ago | 2

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cdfplot and ecdf differences
They're the same (see cdfplot doc), the empirical CDF values are supposed to be used in stairs and not plot (smoothed) rng('def...

2 years ago | 1

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Why do I get NaN?
First, Height is already double, so A = 2; str2double(A) Secondly, first element of Height is NaN. Remove it prior to the ana...

2 years ago | 0

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why does fitlme with a random effect gives the same results to fitlme without the random effect
This shows the model fits well with only fixed effect and there is no variance left for random effects. Also, your observations ...

2 years ago | 0

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how to prompt user to try again instead of letting MATLAB display "Index in position 1 exceeds array bounds" error message.
a= [1 2 3; 4 5 6; 7 8 9]; askAgain = true; while askAgain position = input ('input a number: '); if posit...

3 years ago | 0

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Answered
Errorbar on Box and Whisker Plot
If you want error bars on the same box plots, you can use something like this: tab = table(randi([1, 50], 20, 1), repmat([1; 2]...

3 years ago | 0

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How to extract the data from webread output?
It's always better to first check the RESTful API documentations. In your case, you can get those values either by applying rege...

3 years ago | 1

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why Normal Distribution with Histogram not matching?
This is because histogram shows frequency of your sample, while PDF plots the density. Of course you can change the way histogra...

3 years ago | 0

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how many times is a value repeated in a table
You can play with groupSummary which offers lots of options: tab = table(repmat([20; 50; 100], 20, 1), string((1:60).'), 'Varia...

3 years ago | 0

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How to plot box plots of data of different sizes on the same figure?
You just need to define a grouping array: x1 = randn(128, 1); x2 = randn(100, 1); X = [x1; x2]; grp = [ones(size(x1)); 2.*o...

3 years ago | 0

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Answered
want to order and group files
You can try regexp or pattern: dcm = "00022.dcm"; bmp = ["2015220700022_Frame20.bmp", "2015220700023_Frame20.bmp", "2015220700...

3 years ago | 0

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Answered
Regression with tall array (Using datastore, CSV) - Error
Well, your data is tall table, and that's what MATLAB complains about: since your first argument is a table, MATLAB thinks y is ...

3 years ago | 0

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Is there a way to get a confidence/probability score on fitrsvm or other regression techniques like fitrensemble using the 'predict' function?
You already answered yourself! % MATLAB doc for fitrsvm load carsmall X = [Horsepower,Weight]; Y = MPG; Mdl = fitrsvm(X,Y)...

3 years ago | 0

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How to adjust size of the legend in large figures?
Try NumColumns property: plot(randn(400, 40), randn(400, 40), '.-') legObj = legend(gca, 'NumColumns', 2);

3 years ago | 0

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Answered
Subsets of uncorrelated features
Let R be the pairwise correlation matrix: N = 10; R = rand(N); R(logical(eye(N))) = 1; for i = 1:size(R, 1) - 1 for...

3 years ago | 1

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How can I assign different colors to different bins of a single "bar/barh object"?
Well, you just needed to go through the doc for bar. y = [75 91 105 123.5 131 150 179 203 226 249 281.5]; h = bar(y, 'FaceColo...

3 years ago | 2

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Answered
how to draw classification response of machine learning model ? (Ex. Logistic Regression Response)
You can plot predicted probabilities from a logisitc regression model: y = randi([0, 1], 1000, 1); x = randn(1000, 1); mdl ...

3 years ago | 0

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How to allow for multiline input for inputdlg?
Have you tried new line? num_lines = 1; cues = {'lake', 'river', 'water', 'ocean', 'forest'}; index1 = randi([1,5]); answer ...

3 years ago | 0

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Ignore NaN value when iterating
arrayfun(@(x)numel(A(x, ~isnan(A(x, :)))), 1:size(A,1)) 5 1 3

3 years ago | 0

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Answered
find probability of chi2 test
Based on what you explained it seems you already have the X2 stat. p = 1 - chi2cdf(x, nu) % where x is chi2 stat and nu is df

3 years ago | 0

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