The yt Project
4.3
How to get help
Quickstart notebooks
Cookbook
Site
Introduction to yt
Fields
Objects
General Analysis
Visualization
Executing and Scripting yt
Cookbook and Quickstart
Developing in yt
Getting Help
Getting Started
Getting and Installing yt
Disclaimer
Getting yt
TroubleShooting
Additional Resources
yt Quickstart
Introduction
Data Inspection
Simple Visualization
Data Objects and Time Series
Derived Fields and Profiles
Volume Rendering
What’s New and Different in yt 4.0?
Updating to yt 4.0 from Old Versions (and going back)
Converting Old Scripts to Work with yt 4.0
Cool New Things
What’s New and Different in yt 3.0?
Updating to yt 3.0 from Old Versions (and going back)
Converting Old Scripts to Work with yt 3.0
Cool New Things
API Changes
The Cookbook
Getting the Sample Data
Example Scripts
Example Notebooks
Visualizing Data
How to Make Plots
Plot Modifications: Overplotting Contours, Velocities, Particles, and More
Using the Manual Plotting Interface
3D Visualization and Volume Rendering
Unstructured Mesh Rendering
Interactive Data Visualization
Visualizing Particle Datasets with Firefly
3D Surfaces and Sketchfab
Mapserver - A Google-Maps-like Interface to your Data
Streamlines: Tracking the Trajectories of Tracers in your Data
Colormaps
Geographic Projections and Transforms
Writing FITS Images
General Data Analysis
Fields in yt
Creating Derived Fields
Data Objects
Symbolic Units
Filtering your Dataset
Generating Processed Data
Saving Reloadable Data
Time Series Analysis
Particle Trajectories
Parallel Computation With yt
AstroPy Integrations
Domain-Specific Analysis
Internal Analysis Modules
External Analysis Modules
Extensions
Loading and Examining Data
Loading Data
Loading Generic Array Data
Loading Generic Particle Data
Loading Data via Functions
Loading Spherical Data
Low-Level Data Inspection: Accessing Raw Data
Developing in yt
Getting Involved
How to Develop yt
Coding Style Guide
Documentation
Testing
Extension Packages
Debugging yt
How to Do a Release
Creating Data Objects
Creating Derived Fields
Creating A New Code Frontend
Using yt with External Analysis Tools
How to deprecate a feature
Deprecating Derived Fields
Reference Materials
Code Support
Command-Line Usage
API Reference
yt
Customizing yt: The Configuration and Plugin Files
A Brief Introduction to Python
Field List
How Particles are Indexed
ChangeLog
Frequently Asked Questions
Version & Installation
Code Errors and Failures
Units
Fields
Data Objects
Developing
Miscellaneous
Getting Help
Don’t panic and don’t give up
Update to the latest version
Search the documentation, FAQ, and mailing lists
Look at the source code
Isolate and document your problem
Go on Slack to ask a question
Ask the mailing list
Submit a bug report
Special Issues
About yt
What is yt?
Who is yt?
History of yt
How do I contact yt?
How do I cite yt?
Page
yt.utilities.lib.cosmology_time module
friedman()
yt.utilities.lib.cosmology_time module
¶
yt.utilities.lib.cosmology_time.
friedman
(
O_mat_0
,
O_vac_0
,
O_k_0
)
¶