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# Ive J

Last seen: Today Active since 2013

Computational biologist.

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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...

12 days ago | 0

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 ...

12 days ago | 1

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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.

12 days ago | 0

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...

12 days ago | 1

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

13 days ago | 0

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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...

13 days ago | 0

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...

15 days ago | 1

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...

18 days ago | 1

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

18 days ago | 1

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...

18 days ago | 1

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....

19 days ago | 0

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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...

21 days ago | 0

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(...

21 days ago | 0

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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...

21 days ago | 0

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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 ...

24 days ago | 1

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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...

24 days ago | 1

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. ...

27 days 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...

28 days ago | 0

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...

28 days ago | 0

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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)])...

29 days ago | 0

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...

29 days ago | 1

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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...

1 month ago | 0

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) ...

1 month ago | 0

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...

1 month ago | 0

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...

1 month ago | 0

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) |...

1 month 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...

1 month ago | 1

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