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.

Filter by
Sorted by
Tagged with
3 votes
2 answers
171 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 ...
Attila Vajda's user avatar
2 votes
1 answer
134 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 ...
coderodde's user avatar
  • 28.2k
1 vote
0 answers
41 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: ...
coderodde's user avatar
  • 28.2k
3 votes
1 answer
60 views

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 ...
coderodde's user avatar
  • 28.2k
2 votes
1 answer
80 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 ...
coderodde's user avatar
  • 28.2k
5 votes
1 answer
202 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 ...
coderodde's user avatar
  • 28.2k
1 vote
0 answers
28 views

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 ...
Josh Knutson's user avatar
1 vote
1 answer
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 ...
Toby Speight's user avatar
  • 75.1k
3 votes
1 answer
211 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 ...
Muhammad Najib 's user avatar
2 votes
4 answers
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 ...
111's user avatar
  • 45
2 votes
1 answer
76 views

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 ...
Guillaume Renoult's user avatar
2 votes
1 answer
76 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 ...
Konstantin Kostanzhoglo's user avatar
7 votes
1 answer
205 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 ...
coderodde's user avatar
  • 28.2k
5 votes
1 answer
305 views

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 [...] ...
astral_flight_adapter's user avatar
2 votes
1 answer
734 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 ...
JdoubleL's user avatar
1 vote
1 answer
81 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 ...
coderodde's user avatar
  • 28.2k
0 votes
1 answer
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 ...
HSchmale's user avatar
  • 895
2 votes
0 answers
50 views

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-...
Working dollar's user avatar
9 votes
3 answers
4k 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 ...
JPWilson's user avatar
  • 191
7 votes
7 answers
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 ...
CafféSospeso's user avatar
2 votes
1 answer
945 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 ...
Samir's user avatar
  • 143
1 vote
1 answer
663 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 ...
yuri kilochek's user avatar
1 vote
1 answer
278 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 ...
Dataman's user avatar
  • 227
5 votes
1 answer
745 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 ...
lmkir99's user avatar
  • 53
1 vote
0 answers
29 views

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 ...
Philipp's user avatar
  • 111
0 votes
1 answer
37 views

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 ...
JaP's user avatar
  • 1
2 votes
0 answers
240 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 ...
Tommaso's user avatar
  • 93
4 votes
1 answer
667 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. ...
Paulo Sergio Schlogl's user avatar
3 votes
0 answers
76 views

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 ...
Ξένη Γήινος's user avatar
6 votes
5 answers
2k views

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 ...
Suryasis Paul's user avatar
1 vote
2 answers
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 ...
code writer 3000's user avatar
1 vote
0 answers
40 views

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 ...
Ξένη Γήινος's user avatar
5 votes
1 answer
292 views

Linear Regression in Haskell

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 ...
Robert Long's user avatar
1 vote
1 answer
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. ...
Pluviophile's user avatar
3 votes
0 answers
87 views

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 ...
Wilson's user avatar
  • 31
4 votes
1 answer
212 views

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 ...
Vishal's user avatar
  • 43
6 votes
1 answer
495 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 ...
user avatar
3 votes
1 answer
309 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 ...
Anonymous's user avatar
  • 1,224
1 vote
0 answers
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 ...
Clarinetist's user avatar
4 votes
2 answers
128 views

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 ...
Clarinetist's user avatar
1 vote
1 answer
69 views

Simulation of Central Limiting Theorem (CLT)

The following is the simulation of Central Limiting Theorem from Statistics: ...
user366312's user avatar
4 votes
4 answers
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 ...
Hungry Blue Dev's user avatar
5 votes
1 answer
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 ...
Alan Vinícius's user avatar
6 votes
1 answer
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 ...
Anna Zet's user avatar
0 votes
1 answer
187 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). ...
Mo7art's user avatar
  • 3
3 votes
3 answers
256 views

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 ...
Doğukan Özdemir's user avatar
9 votes
2 answers
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 ...
Stan Loona's user avatar
5 votes
1 answer
159 views

Shoe shine shop model in Rust and C++ - Follow-up

I've just refactored my Rust and C++ code which simulates the shoeshine shop model from this question. What else can be improved? C++: ...
rogday's user avatar
  • 403
17 votes
3 answers
2k views

Shoe shine shop model in Rust

I'm learning Rust and a few questions did arise during translation of my C++ code to Rust. There are comments in Rust code I'd like to be answered. Is there an idiomatic way to solve this task? The ...
rogday's user avatar
  • 403
5 votes
1 answer
194 views

Gamblers ruin, parallel compute trials

Context The following script is a quick implementation of the gambler's ruin problem. For each given upper bound on the number of rounds in a game max_iter, ...
Quetzalcoatl's user avatar

1
2 3 4 5
8