Cortex 1.1.0

.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher. 
dotnet add package Cortex --version 1.1.0
                    


                    

                
NuGet\Install-Package Cortex -Version 1.1.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Cortex" Version="1.1.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Cortex" Version="1.1.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Cortex" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Cortex --version 1.1.0
                    


                    

                
#r "nuget: Cortex, 1.1.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Cortex@1.1.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Cortex&version=1.1.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Cortex&version=1.1.0
                    


                            Install as a Cake Tool

Cortex

A high-performance, pandas-like DataFrame library for .NET backed by Apache Arrow with SIMD acceleration.

Part of the Cortex data science ecosystem for .NET.

Requires .NET 10+

Features

  • Arrow-backed columnar storage for cache-friendly, zero-copy data access
  • SIMD-accelerated operations for blazing-fast numeric computation
  • Rich I/O — CSV, Parquet, Excel, JSON, Avro, ORC, and HTML out of the box
  • Expressive API — filtering, grouping, joining, pivoting, and reshaping
  • Lazy evaluation — deferred query execution with filter/sort/select optimization
  • Native C accelerators for quantile and aggregation hot paths
  • Dictionary-encoded strings for O(K) categorical operations

Installation

dotnet add package Cortex

Quick Start

using Cortex;

var df = DataFrame.ReadCsv("sales.csv");

var summary = df.GroupBy("region")
    .Agg(x => x.Sum("revenue"), x => x.Mean("quantity"))
    .SortBy("revenue", ascending: false);

summary.Head(10).Print();

Filtering and Boolean Indexing

// Boolean indexing
var senior = df[df["Age"].Gt(28)];

// Query expressions
var filtered = df.Query("Salary > 55000");

// Arithmetic operators on columns
var bonus = df.GetColumn<double>("Salary") * 0.1;

Lazy Evaluation

var result = df.Lazy()
    .Filter(Col("Age") > Lit(25))
    .Sort("Salary", ascending: false)
    .Select("Name", "Salary")
    .Head(10)
    .Collect();

I/O

// Auto-detect format from extension
var df = DataFrameIO.Load("data.parquet");  // .csv, .json, .arrow, .xlsx, .avro, .orc
df.Save("output.csv.gz");                    // gzip-compressed
Package Description
Cortex.ML Machine learning models and transformers
Cortex.Viz Plotly chart generation and dashboards
Cortex.GPU GPU-accelerated DataFrame operations
Cortex.IO.Database SQL database I/O with push-down
Cortex.TimeSeries ARIMA, SARIMA, and Holt-Winters forecasting
Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (16)

Showing the top 5 NuGet packages that depend on Cortex:

Package Downloads
Cortex.ML

Machine learning toolkit for Cortex: tensors, feature engineering, pipelines, evaluation
Cortex.Streaming

Real-time micro-batch streaming engine for Cortex DataFrames
Cortex.Cloud

Cloud storage adapters for Cortex — read/write DataFrames from S3, Azure Blob, and GCS
Cortex.ML.Onnx

ONNX Runtime inference bridge for Cortex DataFrames
Cortex.Text

NLP pipeline for Cortex: tokenizers, text preprocessing, embeddings, text analytics

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1.1.0 162 3/30/2026
1.0.0 163 3/27/2026