metrics is an experimental data server and client graphing framework from arithmetric.

Press 'h' or click 'Help' to get information on how to use this.

About

This project aims at a number of goals: (1) to develop a tool for visualizing and analyzing quantitative data, especially related to the economy, (2) to explore the new possibilities with JavaScript and HTML 5's canvas element, and (3) to build a general-purpose data server that can read source files of various formats that are increasingly available through public sources.

This is an early release. I hope to release updates soon with more features and more data.

While my goal is to provide a useful representation of the data, I provide this tool without any warranty.

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Revision History

Version 2010/2/21 --
Added tags/categories for data sets. Improved user interface for selecting data sets and date ranges. Improved support for more data source formats.

Version 2010/1/21 --
Refactored graphing processor to handle dynamic layer for interactive graphics. Added mouse-based measurement tool. Added cumulative percent change analysis. Added graph summary information, including minimum/maximum data indexes and values. Improved graph layout management.

Version 2010/1/5 --
Major interface redesign, including improved integration of HTML text and canvas elements. Refactored data client/server to use index value summary. Added initial support for dynamic data analyses (change and moving average).

Version 2009/12/29 --
Improved handling of multiple data sets in a graph. Added candlestick graphs for market data. Other minor improvements.

Version 2009/12/3 --
First demo release.

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Using metrics

Getting Started:

There are a number of data sets available for viewing. To browse the sets, press the 'N' key. You can use the up and down arrow keys to navigate the list and press 'enter' to select a data set or you can click on any of the results. Use the search box to find data sets with a matching name or title.

Once a data set is loaded and graphed, you can use the arrow keys to change the range of the data.

You can load multiple data sets within the same graph space, or add separate graphs.

Keyboard commands:

[ A ] - add another data set to the first existing graph
[ N ] - create a new graph and choose a data set
[ D ] - set a new date for the beginning of the graph
[ H ] - show this help message
[ left arrow key ] - lower the beginning of the graph by 90 days
[ left arrow key ] and [ shift ] - lower the end of the graph by 90 days
[ right arrow key ] - raise the beginning of the graph by 90 days
[ right arrow key ] and [ shift ] - raise the end of the graph by 90 days

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