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# Questions tagged [statistics]

Consider whether your question would be better asked at CrossValidated, a Stack Exchange site for probability, statistics, data analysis, data mining, and machine learning. Code Review questions on statistics should be about implementation and working program review, not about theoretical discussions of statistics or research design.

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63 views

### Can I make my percolation in python function more efficient?

We've been tasked with finding out how many randomly distributed discs with radius = 1 it takes to form a chain of discs from the left side to the other of a square with side length = sqrt(n), and ...
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391 views

### Plot number of concurrent jobs on time axel

Description: Calculate the number of concurrently running jobs for any given minute during a day. Each Job is scheduled to run X ...
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182 views

### Finding crude death rate and age-standardized death rates from data

How can I improve this code's readability and function, for finding crude death rate and age specific death rate? Given are the death rates from chronic pulmonary obstructive disease in 2019, the ...
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145 views

### First order hidden Markov model with Viterbi algorithm in Java

Introduction A first order HMM (hidden Markov model) is a tuple $(H, \Sigma, T, E, \mathbb{P})$, where $H = \{1, \ldots, \vert H \vert\}$ is the set of hidden states, $\Sigma$ is the set of ...
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1 vote
43 views

### A JavaFX program to find out the mouse refresh rate v3

(This post is the continuation of A JavaFX program to find out the mouse refresh rate v2.) After taking @J_H's suggestions into account, I ended up here: ...
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### A JavaFX program to find out the mouse refresh rate v2

(See the continuation of this post in A JavaFX program to find out the mouse refresh rate v3.) (This post is a continuation of A JavaFX program to find out the mouse refresh rate.) After adopting the ...
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82 views

### A JavaFX program to find out the mouse refresh rate

(See the next version here.) Intro I have this tiny JavaFX program that shows a 800x600 pixel canvas. You are supposed to drag the mouse within the canvas. When you are done dragging, the program will ...
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210 views

### A simple probabilistic AI for generating random sentences in Java

Motivation I have this repository. It contains a program that analyzes an input text file and builds a word graph: in the graph, each node represents a word in the analyzed text. Now, if there are two ...
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1 vote
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### ADO wiki stats generator charting

I'm planning on adding an automated process to generate some stats once a week from a git repository, generates a markdown file with some stats, but looking for some suggestions for generating some ...
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1 vote
72 views

### Container that orders its elements based on their frequency

I was inspired by Find the K most-frequent values in a vector, and originally posted an early version of this in an answer. The aim is to have a container that maintains values ordered by their ...
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235 views

### Calculate median and mode in Rust

I am reading the Rust book. I am on chapter 8; this is the assignment: Given a list of integers, use a vector and return the median (when sorted, the value in the middle position) and mode (the value ...
1k views

### Calculate the median value of combining two sorted lists

I have solved a leetcode problem (Median of Two Sorted Arrays), and I came up with two solutions. Solution 1 ...
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### Calculating median value from a list of numbers

I am learning Rust and I would like to get some feedback around my solution to calculate the median value from a list of integers. I believe the logic is correct as my tests pass, but I'm concerned ...
77 views

### Estimate an average duration of every game state in a football match given implied goals for home and away teams

What my program does I'm trying to estimate for how many minutes in average a football(soccer) match will be in different game states depending on implied goals of both teams. Problem domain For our ...
206 views

### Command-line correlation calculator in Java

I have this Java program that asks for a name of the file containing data rows in the format $$x_1\ y_1 \\ x_2\ y_2 \\ \vdots \\ x_n\ y_n$$, and outputs on the command line the Pearson correlation ...
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### Calculate mode in Rust

I'm new to Rust and still getting used to the ownership model. I'm done with chapter 8 of the book and was trying to solve this exercise: Given a list of integers, use a vector and return the [...] ...
790 views

### Calculating Spearman Correlation from scratch

Over the week, I was assigned to create a function in a Jupyter notebook that satisfies the Spearman Correlation formula without the use of any packages e.g. Numpy, Pandas. Below are the rules of the ...
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1 vote
83 views

### Java - Select the maximum integers from sliding windows over an array

So I have the following algorithm. Given an array A[0 ... n - 1] and the window length w, compute all the windows ...
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47 views

### Identify IRC users with largest vocabulary ignoring links and short words

I wrote this script to figure out which users have the largest vocabulary on my irc server. I would like to see if there's any way to clarify what I consider a very quick script. It outputs a CSV ...
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### Plot ellipse hypothesis plots with confidence intervals for multiple models

I have developed a function to graphically plot between two predictors of interest their confidence interval regions on an ellipse. It states whether the null hypotheses have been accepted for the one-...
5k views

### Computing a simple moving average on an array in C++

I have just started to learn C++ and wanted to improve my function. I am making a basic statistical API and am calculating an SMA (simple moving average) for some data. This function provides the ...
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1k views

### A probability distribution function, to be called repeatedly during numerical integration

I am trying to speed up as much a possible this function in C++. As I explained in another post, Implementing multidimensional integral for a custom function in C++, this function will be used inside ...
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968 views

### Most frequent element in an array, return lowest if multiple

I have been learning C++ for the past 2 weeks. Following is a problem I solved from Hackerrank. I am somewhat unsure if it's the correct way to solve this, even though I got the desired output. How ...
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1 vote
694 views

### Exponentially-weighted moving mean and standard deviation of an irregularly-spaced weighted time series

The following numpy/python function computes exponentially-weighted moving mean and standard deviation of an irregularly-spaced weighted time series. I want to make it faster by getting rid of the ...
1 vote
289 views

### Implementation of a beta-binomial test in Python

I have been unable to find a Python function for performing beta-binomial test. There is, however, a binomial test function in the scipy.stats.binomtest and I have ...
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771 views

### Monte-carlo simulation code - simple exercise

I created a quick monte-carlo simulation which seems to do what I want (simple version below). The code basically simulates a Poisson distribution, say this results in a simulation of ...
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1 vote
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### Statistical bootstrapping in Python - is my code correct?

I wonder if my code for bootstrapping in Python is correctly coded or if there are logical flaws in it. It uses a 95% confidence interval. The code basically does the following for two datasets that ...
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### Obtaining statistics from each batch

I fully admit that the code below is long and ugly. What's happening is that in the validation section of this machine learning model (used for text recognition), I would like to obtain the character ...
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244 views

### Mean, median and mode GUI

This program takes x numbers and displays the mean, median and mode. My goal here was to use classes and class properties the best i could to make the code shorter (honestly i may have just made it ...
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676 views

### Function to calculate the GC content variation in a sequence

I came across this BMC Genomics paper: Analysis of intra-genomic GC content homogeneity within prokaryotes And I implemented some Python functions to make this available as part of a personal project. ...
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### Python program that analyzes a corpus for randomword generation

I play a lot of old-school western CRPGs, and most of them (if not all) require the player to generate an avatar at the start of a new game, including naming the character (with names that will never ...
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### Mean and Variance for Math Library

Taking forward the code written for the math library I'm developing. I wrote templatized functions for mean and variance. std::accumulate() (or summation in ...
1 vote
1k views

### Java simple stats program

This is a simple Java program I made that takes in any number, and when it gets to 0, it returns the quantity of the numbers, the min, max, sum, and average of the numbers. Are there any ways how I ...
1 vote
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### Python 3 script for statistiscal analysis of English vocabulary

This is a Python 3 script that statistically analyzes 105,230 words with a total of 913,935 characters, its results will be used for pseudoword generation purposes. You will need this file for it to ...
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298 views

After quite some time away from Haskell I am trying to brush up. To do so I am writing some basic linear regression functionality. The code produces the output expected. In essence I am trying to ...
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1 vote
1k views

### T-test Independence for a Pandas DataFrame

I want to calculate the scipy.stats.ttest_ind() for numeric columns in a pandas DataFrame with the binary target variable. ...
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### Sampling distribution of the sample mean

This program generates the entire sample distribution of the sample mean. The parent population has elements that have N distinct values. Samples of size n are drawn, with replacement. When N and n ...
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### Modelling of partcle flow under electric field

This is my first modeling exercise on the particle flow. Recently, I read a paper https://acp.copernicus.org/articles/20/3181/2020/. After reading the paper, thought of modeling it in Python. It seems ...
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508 views

### A Level Statistics Calculator/Helper For A Casio Fx-CG50 Calculator's MicroPython

I have made a program for my calculator's micropython, that can solve various a level statistics questions for me. However due to the limitations of the ...
310 views

### Statistics Calculator for Listed and Grouped Data

I made a statistics calculator based on raw data for my Edexcel IAL Statistics 1 course which I'm going to use in my calculator's MicroPython. I would like some suggestions for ways to further improve ...
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1 vote
38 views

### Block Bootstrap Estimation in Java - Part 3

This is an extension of Block Bootstrap Estimation in Java - Part 2. The text file text.txt can be found at https://drive.google.com/open?id=1vLBoNmFyh4alDZt1eoJpavuEwWlPZSKX (please download the file ...
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### Block Bootstrap Estimation using Java

The data are in a file called test.txt, which is available at https://drive.google.com/file/d/1g0ffvH5oP5C4Cp6ciEp_L1Rst6WeTuYG/view?usp=sharing. There are some odd ...
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1 vote
70 views

### Simulation of Central Limiting Theorem (CLT)

The following is the simulation of Central Limiting Theorem from Statistics: ...
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147 views

### Statistics Library with Sample, SampleBuilder and Tests

Introduction I'm working on a Statistics Library that can record observations and produce a Summary of the statistics when there's enough observations. Right now, it's at its early stages and is ...
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2k views

### Select array element by its weight/probability

I coded a function that takes an array with numbers and randomly chooses one of these numbers (Returns the index of the chosen one). The value of each number works as an weight which determines the ...
85 views

### Survey Populate with List, Option Label and Formula, VBA

I am quite a novice. The below code does what I require but I was hoping you could help me speeding it up and simplifying it please. I know should start with basics when learning VBA..but it's just so ...
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189 views

### Calculate the statistical mean of different files and save it into a CSV file

In this code I calculate the statistical functions of values from different files and save them into CSV files (one filer for each statistical function). ...
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### Linear Regression Class in Python

I have recently been brushing up on my statistics and calculus and wanted to implement Linear Regression, the code will be for a calculus/statistics library I am working on (I know there are libraries ...
213 views

### Return probability (Javascript)

I've been working on a personal project. There's this game called TFT which is an autochess game. Each match is played by 8 players and there's a shared pool of champions. Each champion has their cost ...
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