# Questions tagged [statistics]

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319 questions
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### Select optimal piecewise regression fit

I'm making a program which fits a piecewise linear regression with up to 4-5 breakpoints in the data, and then deciding how many breakpoints is best to prevent over and underfitting. However, my code ...
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### Finding the mode of an array

I am a beginner in JavaScript and just wanted to get my code reviewed. Here I have created a function that takes in an array and returns the mode. If there is no more then I just want the function to ...
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### Sparse 3D binning/histogram function

This is a function written in Python I wrote to process galaxy catalogs for cosmology research, however it is more generally applicable than just my pipeline. The goal is to take a Python list of ...
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### dplyr — tidyverse, pipes, correlation, same variable across time “a” “b”

Have a look at this dataset. The"a" and "b" are used to make possible differentiate when the same variable was measured. In this case X1a and X1b access the same variable, but "a" was (suppose..) in ...
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### Using dplyr and pipes for logistic regression plotting

I have successfully created a plot of a binomial glm using example data. https://sciences.ucf.edu/biology/d4lab/wp-content/uploads/sites/125/2018/11/parasites.txt The predictors of the model include ...
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### Get the most frequent number and least frequent duplicate in array

This code gets the most frequent number and least duplicate number in an array. How can I optimize it and improve its performance? ...
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### Simple function returning 1 if the Mean = Mode, or 0 if not

I'm trying to get better at javascript and have built a simple function that returns 1 if the mode is equal to the mean, and 0 if not. You can enter an array of numbers into the function: ...
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### Count sub-sequences of an array having median lying in that subsequence itself

We need to calculate the number of sub-sequences of an array having its median lying in the sub-sequence itself. My code is - ...
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### Top K frequent elements

I am working on an interview question where I need to return the k most frequent elements given a non-empty array of integers. Input: nums = [1,1,1,2,2,3], k = 2 Output: [1,2] Here is my code: <...