Statistics | Ecosyste.ms: Awesome

https://github.com/py-why/causal-learn

Causal Discovery in Python. It also includes (conditional) independence tests and score functions.

causal causal-discovery causal-inference causal-representation-learning causality confounder graph hidden-causal independence-tests python statistics structure tetrad time-series

Last synced: 25 Dec 2024

https://github.com/owlbarn/owl

Owl - OCaml Scientific Computing @ https://ocaml.xyz

algorithmic-differentation autograd automatic-differentiation gsl linear-algebra machine-learning maths matrix mcmc ndarray neural-network numerical-calculations optimization plotting regression scientific-computing sparse-linear-systems statistical-functions statistics topic-modeling

Last synced: 19 Dec 2024

https://github.com/rocketlaunchr/dataframe-go

DataFrames for Go: For statistics, machine-learning, and data manipulation/exploration

data-science dataframe dataframes go golang machine-learning pandas pandas-dataframe python statistics

Last synced: 21 Dec 2024

https://github.com/harshjv/github-repo-size

🚀 Chrome extension to display repository size on GitHub

chrome chrome-extension chrome-extensions github github-api repository-management repository-tools repository-utilities statistics

Last synced: 28 Oct 2024

https://github.com/avhz/rustquant

Rust library for quantitative finance.

finance machine-learning math mathematics option-pricing quantitative-finance quantlib regression rust rust-lang statistics stochastic-processes trading

Last synced: 25 Dec 2024

https://github.com/phishing-database/phishing.database

Phishing Domains, urls websites and threats database. We use the PyFunceble testing tool to validate the status of all known Phishing domains and provide stats to reveal how many unique domains used for Phishing are still active.

domains malware malware-research phishing phishing-attacks phishing-domains phishing-reports phishing-servers phishing-sites statistics stats validity

Last synced: 20 Dec 2024

https://github.com/rsvp/fecon235

Notebooks for financial economics. Keywords: Jupyter notebook pandas Federal Reserve FRED Ferbus GDP CPI PCE inflation unemployment wage income debt Case-Shiller housing asset portfolio equities SPX bonds TIPS rates currency FX euro EUR USD JPY yen XAU gold Brent WTI oil Holt-Winters time-series forecasting statistics econometrics

asset-pricing bonds econometrics economics employment equities fecon236 federal-reserve finance fx gdp gold housing inflation interest-rates jupyter-notebook pandas python statistics time-series

Last synced: 22 Dec 2024

https://github.com/mitchellkrogza/phishing.database

Phishing Domains, urls websites and threats database. We use the PyFunceble testing tool to validate the status of all known Phishing domains and provide stats to reveal how many unique domains used for Phishing are still active.

domains malware malware-research phishing phishing-attacks phishing-domains phishing-reports phishing-servers phishing-sites statistics stats validity

Last synced: 13 Dec 2024

https://github.com/avhz/RustQuant

Rust library for quantitative finance.

finance machine-learning math mathematics option-pricing quantitative-finance quantlib regression rust rust-lang statistics stochastic-processes trading

Last synced: 09 Nov 2024

https://github.com/juliastats/distributions.jl

A Julia package for probability distributions and associated functions.

data-science julia probability-distributions statistics

Last synced: 24 Dec 2024

https://github.com/xl0/lovely-tensors

Tensors, for human consumption

deep-learning library pytorch statistics visualization

Last synced: 26 Dec 2024

https://github.com/JuliaStats/Distributions.jl

A Julia package for probability distributions and associated functions.

data-science julia probability-distributions statistics

Last synced: 15 Nov 2024

https://github.com/easystats/easystats

:milky_way: The R easystats-project

dataanalytics datascience easystats hacktoberfest models performance-metrics r regression-models rstats statistics

Last synced: 24 Dec 2024

https://github.com/datumbox/datumbox-framework

Datumbox is an open-source Machine Learning framework written in Java which allows the rapid development of Machine Learning and Statistical applications.

big-data data-science java machine-learning nlp statistics

Last synced: 21 Dec 2024

https://github.com/fortran-lang/stdlib

Fortran Standard Library

blas fortran fortran-library fortran-package-manager fortran-stdlib hash lapack linear-algebra numerical-methods numpy probability-distribution quadrature rng sorting statistics stdlib strings

Last synced: 19 Dec 2024

https://github.com/h-Klok/StatsWithJuliaBook

julia julia-language machine-learning statistics

Last synced: 26 Oct 2024

https://github.com/h-klok/statswithjuliabook

julia julia-language machine-learning statistics

Last synced: 22 Dec 2024

https://github.com/ddsjoberg/gtsummary

Presentation-Ready Data Summary and Analytic Result Tables

easy-to-use gt html5 r r-package regression-models reproducibility reproducible-research rstats statistics summary-statistics summary-tables table1 tableone

Last synced: 24 Dec 2024

https://github.com/easystats/performance

:muscle: Models' quality and performance metrics (R2, ICC, LOO, AIC, BF, ...)

aic easystats hacktoberfest loo machine-learning mixed-models models performance r r2 statistics

Last synced: 24 Dec 2024

https://github.com/plotly/plotly.rs

Plotly for Rust

barchart candlestick-chart chart data-visualization data-vizualisation financial financial-analysis plot plotly plotlyjs rust scatter scatterplot statistics

Last synced: 25 Nov 2024

https://github.com/madnight/githut

Github Language Statistics

bigquery dataset functional-reactive-programming github-language-statistics github-pages-website jamstack languages programming-languages react react-hooks serverless sql-query statistics

Last synced: 22 Dec 2024

https://github.com/krateng/maloja

Self-hosted music scrobble database to create personal listening statistics and charts

charts listening-habits music scrobble self-hosted statistics

Last synced: 24 Dec 2024

https://github.com/grf-labs/grf

Generalized Random Forests

causal-forest causal-inference econometrics machine-learning random-forest statistics

Last synced: 25 Oct 2024

https://github.com/nivu/ai_all_resources

A curated list of Best Artificial Intelligence Resources

artificial-intelligence convolutional-neural-networks data-science decision-trees deep-learning gan kmeans knn machine-learning mathematics neural-networks python random-forest regression reinforcement-learning rnn statistics statquest support-vector-machine tensorflow

Last synced: 02 Nov 2024

https://github.com/vincentlaucsb/csv-parser

A high-performance, fully-featured CSV parser and serializer for modern C++.

c-plus-plus c-plus-plus-11 c-plus-plus-14 c-plus-plus-17 csv csv-parser csv-reader json parser statistics tab-separated

Last synced: 19 Dec 2024

https://github.com/stan-dev/pystan2

PyStan, the Python interface to Stan

machine-learning probabilistic-programming python stan statistics

Last synced: 12 Nov 2024

https://github.com/xori/gamblers-dice

A terrible idea, now real.

dice fallacy gambler-fallacy roll statistics terrible-idea

Last synced: 03 Nov 2024

https://github.com/tirthajyoti/stats-maths-with-python

General statistics, mathematical programming, and numerical/scientific computing scripts and notebooks in Python

analytics anova bayesian-statistics clustering data-science hypothesis-testing inferential-statistics machine-learning mathematical-programming mathematics matplotlib normal-distribution numerical-analysis numpy pandas probability python scipy statistics statsmodels

Last synced: 24 Dec 2024

https://github.com/slanatech/swagger-stats

API Observability. Trace API calls and Monitor API performance, health and usage statistics in Node.js Microservices.

api api-telemetry collects-statistics devops exposes-statistics grafana kibana metrics microservices monitoring nodejs observability performance prometheus rest statistics swagger swagger-stats

Last synced: 19 Dec 2024

https://github.com/easystats/see

:art: Visualisation toolbox for beautiful and publication-ready figures

data-visualization easystats ggplot2 hacktoberfest plotting r rstats see statistics visualisation visualization

Last synced: 25 Dec 2024

https://easystats.github.io/see/

:art: Visualisation toolbox for beautiful and publication-ready figures

data-visualization easystats ggplot2 hacktoberfest plotting r rstats see statistics visualisation visualization

Last synced: 13 Nov 2024

https://github.com/tirthajyoti/Stats-Maths-with-Python

General statistics, mathematical programming, and numerical/scientific computing scripts and notebooks in Python

analytics anova bayesian-statistics clustering data-science hypothesis-testing inferential-statistics machine-learning mathematical-programming mathematics matplotlib normal-distribution numerical-analysis numpy pandas probability python scipy statistics statsmodels

Last synced: 12 Nov 2024

https://github.com/OpenIntroStat/ims

📚 Introduction to Modern Statistics - A college-level open-source textbook with a modern approach highlighting multivariable relationships and simulation-based inference. For v1, see https://openintro-ims.netlify.app.

bootstrap-confidence-intervals inference modern-statistics openintro rstats simulation statistics

Last synced: 08 Nov 2024

https://github.com/plan-player-analytics/plan

Player Analytics plugin for Minecraft Server platforms - View player activity of your server with ease. :calendar:

analytics bukkit-plugin bungeecord-plugin data-collection fabric-mod hacktoberfest mysql nukkit-plugin spigot-plugin sponge-plugin sqlite statistics velocity-plugin visualization webserver

Last synced: 19 Dec 2024

https://github.com/plan-player-analytics/Plan

Player Analytics plugin for Minecraft Server platforms - View player activity of your server with ease. :calendar:

analytics bukkit-plugin bungeecord-plugin data-collection fabric-mod hacktoberfest mysql nukkit-plugin spigot-plugin sponge-plugin sqlite statistics velocity-plugin visualization webserver

Last synced: 25 Oct 2024

https://github.com/bansalkanav/Ultimate-Data-Science-Toolkit---From-Python-Basics-to-GenerativeAI

aws cnn data-analysis data-science deep-learning-algorithms flask machine-learning mlflow mlops mongodb pandas-python prefect python3 search-engine sklearn-library sql statistics streamlit tutorial-code visualization

Last synced: 08 Nov 2024

https://github.com/bansalkanav/ultimate-data-science-toolkit---from-python-basics-to-generativeai

aws cnn data-analysis data-science deep-learning-algorithms flask machine-learning mlflow mlops mongodb pandas-python prefect python3 search-engine sklearn-library sql statistics streamlit tutorial-code visualization

Last synced: 20 Dec 2024

https://github.com/joshday/onlinestats.jl

⚡ Single-pass algorithms for statistics

big-data julia julia-language julialang online-algorithms onlinestats statistics stochastic-approximation streaming-data

Last synced: 19 Dec 2024

https://github.com/androz2091/discord-data-package-explorer

🌀 What's really in your Discord Data package?

data-analysis discord discord-data-package statistics

Last synced: 20 Dec 2024

https://github.com/joshday/OnlineStats.jl

⚡ Single-pass algorithms for statistics

big-data julia julia-language julialang online-algorithms onlinestats statistics stochastic-approximation streaming-data

Last synced: 27 Oct 2024

https://github.com/aloctavodia/Statistical-Rethinking-with-Python-and-PyMC3

Python/PyMC3 port of the examples in " Statistical Rethinking A Bayesian Course with Examples in R and Stan" by Richard McElreath

bayesian-data-analysis data-science pymc python statistics

Last synced: 27 Nov 2024

https://github.com/aloctavodia/statistical-rethinking-with-python-and-pymc3

Python/PyMC3 port of the examples in " Statistical Rethinking A Bayesian Course with Examples in R and Stan" by Richard McElreath

bayesian-data-analysis data-science pymc python statistics

Last synced: 25 Dec 2024

https://github.com/Androz2091/discord-data-package-explorer

🌀 What's really in your Discord Data package?

data-analysis discord discord-data-package statistics

Last synced: 01 Nov 2024

https://github.com/fieldtrip/fieldtrip

The MATLAB toolbox for MEG, EEG and iEEG analysis

analysis beamformer bids brain connectivity dipole donders ecog eeg fieldtrip ieeg matlab meg neuroimaging neuroscience seeg statistics time-frequency

Last synced: 20 Dec 2024

https://github.com/Litlyx/litlyx

Powerful Analytics Solution. Setup in 30 seconds. Display all your data on a Simple, AI-powered dashboard. Fully self-hostable and GDPR compliant.

ai analytics angular charts data data-analysis data-visualization javascript metrics nextjs nodejs nuxt open-source react statistics typescript vue website

Last synced: 22 Dec 2024

https://github.com/litlyx/litlyx

Powerful Analytics Solution. Setup in 30 seconds. Display all your data on a Simple, AI-powered dashboard. Fully self-hostable and GDPR compliant.

ai analytics angular charts data data-analysis data-visualization javascript metrics nextjs nodejs nuxt open-source react statistics typescript vue website

Last synced: 20 Dec 2024

https://github.com/chrisvoncsefalvay/learn-julia-the-hard-way

Learn Julia the hard way!

data-science hpc julia julia-language julialang language learning learning-by-doing learning-julia scientific-computing statistics technical-computing

Last synced: 22 Dec 2024

https://github.com/TeaWeb/build

TeaWeb-可视化的Web代理服务。DEMO: http://teaos.cn:7777

api fastcgi golang http2 log monitor proxy server statistics visualization waf web

Last synced: 02 Nov 2024

https://github.com/rapidsai/raft

RAFT contains fundamental widely-used algorithms and primitives for machine learning and information retrieval. The algorithms are CUDA-accelerated and form building blocks for more easily writing high performance applications.

anns building-blocks clustering cuda distance gpu information-retrieval linear-algebra llm machine-learning nearest-neighbors neighborhood-methods primitives random-sampling solvers sparse statistics vector-search vector-similarity vector-store

Last synced: 19 Dec 2024

https://github.com/piermorel/gramm

Gramm is a complete data visualization toolbox for Matlab. It provides an easy to use and high-level interface to produce publication-quality plots of complex data with varied statistical visualizations. Gramm is inspired by R's ggplot2 library.

data-visualization matlab plot statistics stats visualization

Last synced: 22 Dec 2024

https://github.com/unpingco/python-for-probability-statistics-and-machine-learning

Jupyter Notebooks for Springer book "Python for Probability, Statistics, and Machine Learning"

book books jupyter-notebook machine-learning probability probability-theory python statistical-analysis statistical-learning statistical-tests statistics statistics-course

Last synced: 25 Dec 2024

https://github.com/unpingco/Python-for-Probability-Statistics-and-Machine-Learning

Jupyter Notebooks for Springer book "Python for Probability, Statistics, and Machine Learning"

book books jupyter-notebook machine-learning probability probability-theory python statistical-analysis statistical-learning statistical-tests statistics statistics-course

Last synced: 07 Nov 2024

https://github.com/erikaduan/r_tips

A repository of R usage tips for data cleaning, data mining, data visualisation, statistical inference and machine learning

data-science data-visualization machine-learning r rstats statistics

Last synced: 04 Dec 2024

https://github.com/18F/analytics.usa.gov

The US federal government's web traffic.

analytics analytics-dashboard dap statistics traffic

Last synced: 21 Dec 2024

https://github.com/akkadius/glass-isc-dhcp

Glass - ISC DHCP Server Interface

alerting api-server dhcp dhcp-lease-data email glass isc-dhcp-server mit-license monitor nodejs oui realtime rest-api server slack sms statistics subnets utilization websocket

Last synced: 24 Dec 2024

https://github.com/evgenyneu/sigmaswiftstatistics

A collection of functions for statistical calculation written in Swift.

statistics swift

Last synced: 25 Dec 2024

https://github.com/scikit-mobility/scikit-mobility

scikit-mobility: mobility analysis in Python

complex-systems data-analysis data-science human-mobility mobility-analysis mobility-flows network-science risk-assessment scikit-mobility statistics synthetic-flows

Last synced: 22 Nov 2024

https://github.com/evgenyneu/SigmaSwiftStatistics

A collection of functions for statistical calculation written in Swift.

statistics swift

Last synced: 09 Dec 2024

https://github.com/Akkadius/glass-isc-dhcp

Glass - ISC DHCP Server Interface

alerting api-server dhcp dhcp-lease-data email glass isc-dhcp-server mit-license monitor nodejs oui realtime rest-api server slack sms statistics subnets utilization websocket

Last synced: 01 Nov 2024

https://github.com/leslieleung/opensource-lighthouse

汇总统计各「大厂」的开源团队和项目。

github open-source statistics

Last synced: 21 Dec 2024

https://github.com/google/edward2

A simple probabilistic programming language.

bayesian-methods data-science deep-learning machine-learning neural-networks probabilistic-programming statistics tensorflow

Last synced: 26 Oct 2024

https://github.com/dmpe/r

Exercises (incl. analyses) with R language (math+statistics)

course data-analysis exercise r statistics

Last synced: 25 Dec 2024

https://github.com/trevismd/statannotations

add statistical significance annotations on seaborn plots. Further development of statannot, with bugfixes, new features, and a different API.

annotations plotting seaborn statistics

Last synced: 15 Nov 2024

https://github.com/dmpe/R

Exercises (incl. analyses) with R language (math+statistics)

course data-analysis exercise r statistics

Last synced: 22 Nov 2024

https://github.com/rweekly/rweekly.org

R Weekly

blog community data-science data-visualization r rweekly statistics visualization weekly

Last synced: 27 Nov 2024

https://github.com/shervinea/stanford-cme-106-probability-and-statistics

VIP cheatsheets for Stanford's CME 106 Probability and Statistics for Engineers

cheatsheet distribution hypothesis-testing probability regression-testing statistics

Last synced: 22 Dec 2024

https://github.com/d2-projects/folder-explorer

分析文件目录，统计数据并以树形结构和图表的形式展示结果，也可以导出多种格式留存

electron explorer finder html json linux macos scanner statistics treeview vue-cli3 vuejs windows xmind xml

Last synced: 21 Dec 2024

https://github.com/pyRiemann/pyRiemann

Machine learning for multivariate data through the Riemannian geometry of positive definite matrices in Python

brain-computer-interface covariance-estimation covariance-matrix eeg hermitian-matrices image-processing machine-learning positive-definite-matrices python radar-image remote-sensing riemannian-geometry signal-processing statistics symmetric-matrices time-series

Last synced: 12 Nov 2024

https://github.com/pyriemann/pyriemann

Machine learning for multivariate data through the Riemannian geometry of positive definite matrices in Python

brain-computer-interface covariance-estimation covariance-matrix eeg hermitian-matrices image-processing machine-learning positive-definite-matrices python radar-image remote-sensing riemannian-geometry signal-processing statistics symmetric-matrices time-series

Last synced: 20 Dec 2024

https://github.com/strengejacke/sjplot

sjPlot - Data Visualization for Statistics in Social Science

data-visualization plotting r social-sciences statistics

Last synced: 26 Dec 2024

https://github.com/strengejacke/sjPlot

sjPlot - Data Visualization for Statistics in Social Science

data-visualization plotting r social-sciences statistics

Last synced: 22 Nov 2024

https://github.com/SebKrantz/collapse

Advanced and Fast Data Transformation in R

cran data-aggregation data-analysis data-manipulation data-processing data-science data-transformation econometrics high-performance panel-data r rstats scientific-computing statistics time-series weighted weights

Last synced: 11 Nov 2024

https://github.com/sebkrantz/collapse

Advanced and Fast Data Transformation in R

cran data-aggregation data-analysis data-manipulation data-processing data-science data-transformation econometrics high-performance panel-data r rstats scientific-computing statistics time-series weighted weights

Last synced: 20 Dec 2024

https://github.com/tuangauss/DataScienceProjects

The code repository for projects and tutorials in R and Python that covers a variety of topics in data visualization, statistics sports analytics and general application of probability theory.

data-science data-visualization statistics

Last synced: 01 Nov 2024

https://github.com/juliastats/glm.jl

Generalized linear models in Julia

data-science glm julia regression statistical-models statistics

Last synced: 19 Dec 2024

https://github.com/JuliaStats/GLM.jl

Generalized linear models in Julia

data-science glm julia regression statistical-models statistics

Last synced: 12 Nov 2024

https://github.com/LeslieLeung/opensource-lighthouse

汇总统计各「大厂」的开源团队和项目。

github open-source statistics

Last synced: 19 Nov 2024

https://github.com/juliastats/statsbase.jl

Basic statistics for Julia

julia statistical-models statistics summarization

Last synced: 19 Dec 2024

https://github.com/hrnbot/Basic-Mathematics-for-Machine-Learning

The motive behind Creating this repo is to feel the fear of mathematics and do what ever you want to do in Machine Learning , Deep Learning and other fields of AI

ai algebra beginner calculus linear-algebra machine-learning machinelearning-python mathematical-analysis mathematical-functions mathematics maths notebook prerequisites probability python pytorch siraj siraj-raval statistics

Last synced: 11 Nov 2024

https://github.com/tommyod/kdepy

Kernel Density Estimation in Python

data-analysis exploratory-data-analysis kernel-density-estimation python python3 statistics

Last synced: 19 Dec 2024

https://github.com/tommyod/KDEpy

Kernel Density Estimation in Python

data-analysis exploratory-data-analysis kernel-density-estimation python python3 statistics

Last synced: 12 Nov 2024

https://github.com/JuliaStats/StatsBase.jl

Basic statistics for Julia

julia statistical-models statistics summarization

Last synced: 17 Nov 2024

https://github.com/rpy2/rpy2

Interface to use R from Python

cffi data-science interoperability python r statistics

Last synced: 22 Dec 2024

https://github.com/axect/peroxide

Rust numeric library with high performance and friendly syntax

dataframe determinant interpolation jacobian linear-algebra lu-decomposition matlab matrix numerical-analysis numerical-integration optimization peroxide r regression rust rust-numeric-library scientific-computing simd-openblas spline statistics

Last synced: 26 Dec 2024

https://github.com/GeoStat-Framework/GSTools

GSTools - A geostatistical toolbox: random fields, variogram estimation, covariance models, kriging and much more

covariance-model geospatial geostatistics kriging python science spatio-temporal srf statistics variogram variogram-estimation

Last synced: 12 Nov 2024

https://github.com/Lackoftactics/facebook_data_analyzer

Analyze facebook copy of your data with ruby language. Download zip file from facebook and get info about friends ranking by message, vocabulary, contacts, friends added statistics and more

conversation data-science data-visualization english-language facebook facebook-data facebook-data-analyzer ruby ruby-gem scraping script statistics

Last synced: 20 Nov 2024

https://github.com/csinva/csinva.github.io

Slides, paper notes, class notes, blog posts, and research on ML 📉, statistics 📊, and AI 🤖.

ai artificial-intelligence awesome blog computational-neuroscience data-science deep-learning jekyll-themes machine-learning machine-learning-tutorials ml neuroscience notes python pytorch research slides statistics stats website

Last synced: 28 Sep 2024

https://github.com/williamtroup/heat.js

🌞 A lightweight JavaScript library that generates customizable heat maps, charts, and statistics to visualize date-based activity and trends.

activity angular bar bar-chart chart css date generator heat heatmap html javascript map react statistics trends typescript visualization

Last synced: 20 Dec 2024

https://github.com/kthohr/stats

A C++ header-only library of statistical distribution functions.

armadillo armadillo-library blaze cdf constexpr cpp cpp11 density-functions distributions eigen eigen3 numerical-methods openmp probability quantile quantile-functions statistics stats

Last synced: 22 Dec 2024

https://github.com/hoya012/CVPR-2019-Paper-Statistics

Statistics and Visualization of acceptance rate, main keyword of CVPR 2019 accepted papers for the main Computer Vision conference (CVPR)

cvpr cvpr2019 paper paper-analysis statistics

Last synced: 27 Nov 2024

https://github.com/williamtroup/Heat.js

🌞 A lightweight JavaScript library that generates customizable heat maps, charts, and statistics to visualize date-based activity and trends.

activity angular bar bar-chart chart css date generator heat heatmap html javascript map react statistics trends typescript visualization

Last synced: 31 Oct 2024

https://github.com/Axect/Peroxide

Rust numeric library with high performance and friendly syntax

dataframe determinant interpolation jacobian linear-algebra lu-decomposition matlab matrix numerical-analysis numerical-integration optimization peroxide r regression rust rust-numeric-library scientific-computing simd-openblas spline statistics

Last synced: 07 Nov 2024

https://github.com/projectwallace/wallace-cli

Pretty CSS analytics on the CLI

analysis audit branding cli complexity css metrics performance projectwallace statistics stats wallace

Last synced: 25 Oct 2024

https://github.com/doubleml/doubleml-for-py

DoubleML - Double Machine Learning in Python

causal-inference data-science double-machine-learning econometrics machine-learning python scikit-learn statistics

Last synced: 19 Dec 2024

https://github.com/farukalamai/advanced-machine-learning-engineer-roadmap-2024

A Full Stack ML (Machine Learning) Roadmap involves learning the necessary skills and technologies to become proficient in all aspects of machine learning, including data collection and preprocessing, model development, deployment, and maintenance.

aws computer-vision data-analysis data-science data-visualization deep-learning git-github machine-learning machine-learning-roadmap mlops natural-language-processing neural-network nlp opencv pandas python pytorch statistics tensorflow yolo