Data Analysis Applications for Mac OS X
A few years ago Scott Hannahs compiled a fabulous list of the tools for Data Analysis available for Mac OS X for the SciTech mailing list and I thought it would be useful to spread the word, since then many people have contacted me and the list has grown. Remember that many of the more expensive applications have free/cheap academic or student versions. Updated 23 April 2013.
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Other useful Tools
Whilst the tools above provide a wealth of alternatives for exploring and analysing data one other request often comes up, if you have a hard copy of a graph how do you get the data into one of the above packages. I know of two tools that help in this task.
GraphClick is a graph digitizer software which allows to automatically retrieve the original (x,y)-data from the image of a scanned graph or from a QuickTime movie. It is a native Mac OS X application and an Apple design award winner.
DataThief III is a Java application to extract (reverse engineer) data points from a graph. Typically, you scan a graph from a publication, load it into DataThief, and save the resulting coordinates, so you can use them in calculations or graphs that include your own data.
On the other hand if you just want to create structured data table (fields) and fill them with random proper content (records) with a single click then DataCreator is what you might want to look at, I've written a review DataCreator.
Data Extractor allows to extract data from files and collect them ready to be exported for later use Data is collected in records with custom specified fields inside an internal table. Data can be exported at any time. Data extractor can parse thousands and thousands of file in few seconds and collect all the data inside these files using simple instructions on how to recognise data, how to extract them and where to put these data inside Data Extractor tables, ready to be exported and transferred to a database.
If you just want to have a quick browse though the datafile then MagicPlot Viewer offers a quick and useful means to do that.
You might also want to look at Data Wrangler for an online tool for cleaning up data.