A répondu
I have 45x484 matrix but when I calculate coeff pca function, I am getting coeff with 484x44 matrix which causes errors in biplot. Why is the rows and columns switch places?
Well you should find the answer in your problem not MATLAB pca function. You have 45 observations with 484 variables, so degree ...

plus de 2 ans il y a | 1

| A accepté

A répondu
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...

plus de 2 ans il y a | 1

A répondu
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. ...

plus de 2 ans il y a | 0

| A accepté

A répondu
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...

plus de 2 ans il y a | 0

A répondu
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...

plus de 2 ans il y a | 0

| A accepté

A répondu
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)])...

plus de 2 ans il y a | 0

A répondu
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...

plus de 2 ans il y a | 1

| A accepté

A répondu
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...

plus de 2 ans il y a | 0

A répondu
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) ...

plus de 2 ans il y a | 0

A répondu
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...

plus de 2 ans il y a | 0

A répondu
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...

plus de 2 ans il y a | 0

A répondu
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) |...

plus de 2 ans il y a | 2

| A accepté

A répondu
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...

plus de 2 ans il y a | 1

| A accepté

A répondu
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...

plus de 2 ans il y a | 0

A répondu
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 ...

plus de 2 ans il y a | 0

A répondu
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...

presque 3 ans il y a | 0

| A accepté

A répondu
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]...

presque 3 ans il y a | 0

A répondu
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...

presque 3 ans il y a | 1

| A accepté

A répondu
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...

presque 3 ans il y a | 0

A répondu
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...

presque 3 ans il y a | 0

A répondu
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...

presque 3 ans il y a | 0

| A accepté

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

presque 3 ans il y a | 0

| A accepté

A répondu
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 ...

presque 3 ans il y a | 0

| A accepté

A répondu
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)...

presque 3 ans il y a | 0

A répondu
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);

presque 3 ans il y a | 0

| A accepté

A répondu
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...

presque 3 ans il y a | 1

A répondu
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...

presque 3 ans il y a | 2

| A accepté

A répondu
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 ...

presque 3 ans il y a | 0

A répondu
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 ...

presque 3 ans il y a | 0

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

environ 3 ans il y a | 0

| A accepté

Charger plus