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Ive J


Last seen: 22 dagar ago Active since 2013

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Computational biologist.

Programming Languages:
Python, R, MATLAB
Spoken Languages:
English

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Answered
How does fsrftest calculate the p-value?
At the end of doc you can see it uses -log(p) to rank features, so there is no significance level here. And yes, it's same as AN...

6 månader ago | 0

| accepted

Answered
How to do linear fitting of data to get R square value and coeficient of a,b ?
n = 100; x = randn(n, 1); y = randn(n, 1); mdl = fitlm(x, y)

8 månader ago | 0

Answered
Adding String to end of an Matrix
wordlist = strings(3, 1); for n = 1:3 wordlist(n) = input("Word: ","s"); end

8 månader ago | 0

| accepted

Answered
Applying SHAP on a Reinforcement Learning Algorithm
Document and refs are clear enough if you're aware enough what your intentions are. Follow this example if you're interested to ...

8 månader ago | 0

Answered
Importance of predictors within an Optimizable GPR model
It's almost always good to look at both local and global levels. In case of lime or SHAP, you can calculate on a random subset o...

10 månader ago | 0

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Answered
Linear and Logistic Regressions to control for a possible confouding variable
whether or not should you adjust for some covariates in your model heavily depends on your understaind of the matter you study. ...

11 månader ago | 0

Answered
a philosophical question regarding function (how many tasks should be wrapped inside a function?)
Assuming you're gonna stick with those variable names, you can do somethig like this: T1 = array2table(["matlab 101"; "C++ 20...

ungefär ett år ago | 0

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Answered
.MAT file with multiple tabs/sheets
you can do something like this, and write each sheet to fields of a structure: snames = sheetnames("myfile.xlsx"); out = s...

ungefär ett år ago | 1

Answered
Why does meanEffectSize() use sqrt((varX + varY)/2) for the paired cohensD calculation?
I assume you mean (check more flavors in this paper): x = [10 12 15 8 11]; y = [14 18 16 12 13]; d = mean(x-y)/std(x-y) ...

ungefär ett år ago | 1

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Answered
Multioutput Regression models in MATLAB
I'm not aware of such a function in MATLAB, but you can loop over your target/response variables, and each time fit a new model....

ungefär ett år ago | 0

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Answered
How to cluster data in a boxplot?
what about this? data = load("data.mat").data; % just a personal preference: strings are easier to work with cellCols = v...

ungefär ett år ago | 0

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Answered
How to force enable GPU usage in fitrgp
fitrgp does not [yet] support GPU arrays. You can easily scroll down the doc page and check "Extended Capabilities" for each fun...

mer än ett år ago | 0

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Answered
Struggling to lay 2D points over a 3D scatter plot
what about hold on? hold on voc = [125, 45, 0; 140, 39, 0]; scatter3(voc(:, 1), voc(:, 2), voc(:, 3), "*") % or plot3

mer än ett år ago | 0

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Answered
how to count uncommented ligns in matlab file?
% doc readlines % lines = readlines("myfunc.m"); lines = [" % comment 1" "dummy = 1 + 3;" " " "%{" "th...

mer än ett år ago | 2

| accepted

Answered
Right measure for logistic regression of imbalance data and dealing with Complete Separation
It's probably a bit late for your original problem, but since it's an important question and MATLAB still lacks such important f...

ungefär 2 år ago | 0

Submitted


bfilereader
bfilereader: Efficient processing of big delimited files in MATLAB

mer än 2 år ago | 2 downloads |

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Answered
How to get the sum of squares in GLM model summary ?
You can get SST, SSE and SSR: mdl = fitglm(rand(100, 2), randi([0 1], 100, 1), 'dist', 'binomial', 'link', 'logit'); mdl.SSE...

mer än 2 år ago | 0

| accepted

Question


tall array within a parfor?
Consider the following scenario: ds = datastore(...); dst = tall(ds); parfor ... % warning here: dst is a broadca...

mer än 2 år ago | 1 answer | 0

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answer

Answered
Sort cell numbers ?
If by sort, you mean sort within each element of cell array: G = {[-83;-84] [-65] [-50;-47] [-33;-30] [-26;-22] [-16;-15] [-6; ...

mer än 2 år ago | 0

Answered
Using movmean to calculate mean of first and last element in array
What about this? a = [1 5 8 10]; ma = movmean([a, a(1)], [0 1], 'Endpoints', 'discard')

mer än 2 år ago | 0

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Answered
exportgraphics dynamic file name
% A = {'name1', ...} for k = 1:16 %rest of the code c = colorbar; c.Label.String = A{k}; ...

mer än 2 år ago | 1

| accepted

Answered
stepwiseglm model seems to be missing parameters?
It does include both. You should mind the model formula in MATLAB (AKA Wilkinson Notation): x1*x2 is x1 + x2 + x1:x2. See also...

mer än 2 år ago | 0

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Answered
Create a double identity matrix matlab
Maybe not the best way, but works: % taken from doc kron n = 12; I = speye(n, n); E = sparse(2:n, 1:n-1, 1, n, n); K = fu...

mer än 2 år ago | 0

Answered
Vector dimesions are different before encoding json and after decoding json
How about this? mystr.f1 = 1:4; mystr.f2 = (1:4).'; js = jsonencode(mystr); newstr = jsondecode(js) fnames = fieldnames...

mer än 2 år ago | 0

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Answered
How do I match an annotations.json file with their respective images from an image folder?
Try this js = jsondecode(fileread("annotations.json.txt")) % file extension was changed only for upload % get info of first ...

mer än 2 år ago | 0

Answered
How to add to Matlab a path with a @Folder
See here www.mathworks.com/matlabcentral/answers/1659190-why-addpath-is-not-working?

mer än 2 år ago | 2

| accepted

Answered
Can MATLAB save the Profiler results table (Function Name, Calls, etc.) to a text file or a spreadsheet?
info = load("info.mat").info; infotab = struct2table(info.FunctionTable); infotabMain = infotab(:, ["FunctionName", "NumCalls"...

mer än 2 år ago | 0

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Answered
Estimate p-values of fitted parameters using armax from sysid toolbox
armax returns parameters and their uncertainties; then you can calculate the p-values. load iddata9 z9 na = 4; nc = 1; sys ...

mer än 2 år ago | 0

| accepted

Answered
Optimization of manipulating an array
a = [1, 0, 5, 0, 6, 0, 12, 0]; b = a; a_adj_mean = movmean(a(1:2:end), 2); zero_idx = a == 0; b(zero_idx(1:end - 1)) = a_a...

mer än 2 år ago | 0

| accepted

Answered
calculate the number of times each codon appears in a .mat file
Maybe this example would help: % create a random DNA seq dna_codes = ['A', 'T', 'G', 'C']; dna_str = string(dna_codes(randi(n...

mer än 2 år ago | 0

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