Answered
filter cell array with strings
Try to work with tables, they're more versatile. Also check groupfilter for more advanced filtering schemes. tab = array2table(...

2 years ago | 0

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Answered
Merging rows of a matrix into a number
See here https://mathworks.com/matlabcentral/answers/299422-converting-a-double-into-a-matrix-of-its-digits#answer_231586 C = [...

2 years ago | 1

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Answered
Ignore missing data in a table group
As Johan also suggested you may use omitnant flag. Also, consider using groupsummary and groupfilter : m = groupsummary(T, 'C',...

2 years ago | 0

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Answered
how to search specific data from matlab to excel
tab = readtable('myExcel.xlsx'); % see doc for more options tab(ismember(tab.(1), 'R1280XS'), :) % the row at which the input...

2 years ago | 1

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Answered
Check for coordinate pairs matches in .mat file
Assuming both x and y are vectors of same length, this might work: x = randi([0 5], 10, 1); y = randi([0 5], 10, 1); myPair...

2 years ago | 0

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How can I create an array from the past values in a loop?
something like this? n = 10; str = strings(n, 1); for i = 1:n % do whatever str(i, 1) = gimmeMystr; end

2 years ago | 0

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Plot the slope of a parabola with only the data points being known
Before fitting, it's a good practice to visualize your data to better understand the rough relationship between your variables. ...

2 years ago | 1

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How to plot a function with summation and multiple variables?
Start by understanding MATLAB a bit better. For the time being this may help you: myfnc = @(A, s, t, i, T0, tau) sum(A.*s.*(t -...

2 years ago | 0

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Handle error from input
AFIK input doesn't let you control the error behavior. The better approach would be to return it as a string, and validate it: ...

2 years ago | 0

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fileDatastore using for loop and scatter
You are not even reading your csv files; you just read the same file file4.csv over and over! Try this: fds = fileDatastore('*....

2 years ago | 1

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mean from intersection matrix
This should work: a = [1,3,3,2,2,3,3,4,3,1,3]; b = [1,1,1,3,4,1,2,1,4,1,1]; c = [2,2,2,4,2,3,3,2,1,3,8]; x = [a; b]; [~, ...

2 years ago | 0

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Answered
Read from and make new based on positions
Why not this? G = [0 115 0 0 0 0 0 0 0 0 111 0 0 0 0 110 0 0 0 110 0 0 0 0 82 0 0 0 0 111 0 0 0 111 0 0 0 0 0 0 0 0 0 87 114...

2 years ago | 1

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Answered
Bar plot error when plotting
The main problem is that your tick labels are too long to fit under the axes. You can try something like this: figure('Name', '...

2 years ago | 0

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Answered
Open .m files in current MATLAB instance from Windows Powershell
Try this function addME(a, b) fprintf("sum a + b equals %.2g\n", a + b) end Then from powershell (assuming your PS insta...

2 years ago | 0

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What equivalent MATLAB commands plots PDF of data like 'hist' command plots histogram of data.
Something like this should work: data = normrnd(10,1,100,1); pd = fitdist(data, 'Normal'); x_values = 5:0.1:15; y_values = p...

2 years ago | 0

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scatter plot data that meet a condition
% some random values A = randi([0, 100], 8, 2000); F = randi([0 1], 8, 2000); F = logical(F); % convert your flag to logical ...

2 years ago | 1

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Answered
How to calculate for significant difference between Cohen's Kappa values?
You can build confidence intervals around your Kappa values, and then see if they overlap.

2 years ago | 0

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How to know which distribution is BCa method form bootci assuming my data follows
To my understanding BCa tries to correct for bias and skewness (acceleration, calculated from jackknife sampling) in the distrib...

2 years ago | 1

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Is there a way to turn off the scale over the graph
h = gca; h.Box = 'on'; h.XAxis.TickLength = [0 0];

2 years ago | 0

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Answered
Standard Error for bivariable zscore normalized regression
And why is it surprising to you? You can read about how coefficients and their SE are calculated in linear regression. Standard...

2 years ago | 0

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I have a table where each entry is a word/sentence. How do I count how many times a word shows up?
Check out groupsummary: gender = {'male', 'female', 'male', 'male'}.'; dogorcat = {'dog', 'cat', 'dog', 'dog'}.'; T = table(g...

2 years ago | 1

Answered
How can i change the linestyle in the parcorr function?
This should work: [~, ~, ~, h] = parcorr(randn(1000, 1)); set(gca,'YTick',[-0.3 0 0.5 1 ]) title('PACF Offshore') ylabel('pa...

2 years ago | 1

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Answered
Shifting the first element of an array to the end
a = 1:4; circshift(a, 1)

2 years ago | 1

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stepwiselm() function is not taking the last column of table as Response variable
The issue stems from variable Timestamp, which is of class datetime. You need to first convert it to numeric type: data = readt...

2 years ago | 1

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Floating bar graphs with characters and numerical data
What about this? tags = ["Al", "Ti", "Nb", "Co", "Mo"]; ranges = [0.01 0.58; 0.76 1.95; 5 5.61; 0 1; 2.63 3.11]; h = gca; h....

2 years ago | 0

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Answered
Counting number of words and their characters
Maybe this help txt = ["Why MATLAB doesn't offer much for data science?"; "Python and R beat MATLAB in ML"]; voc = tokenizedDo...

2 years ago | 0

Answered
How to combine multiple sheet in an excel file in to a single sheey
Follow this example: file = "test.xlsx"; % replace your file name names = sheetnames(file); data = table; for i = 1:numel(...

2 years ago | 0

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Answered
Any efficient way to identify a set of 1s in a big array?
Try this a = [1 1 1 -1 0 0 0 0 1 1 -1 0 0 1 1 1 1 -1 0 0]; astart = [1, 9, 14]; astop = [3, 10, 17]; dda = diff([0, 0, dif...

2 years ago | 0

Answered
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 ...

2 years ago | 1

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