Log(), exp() and abs() functions on columns

qwerin / fusion-tables

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Log(), exp() and abs() functions on columns #739

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago

The list of functions that can be applied to columns could be extended somewhat 
to include some of the remaining popular functions, such as log(), exp() and 
abs().
The most important of these is arguably the logarithm, since it is very 
commonly used in data analysis to transform variables that are highly skewed 
and to model multiplicative dependencies between variables instead of additive.

Original issue reported on code.google.com by sergiy.p...@gmail.com on 17 Aug 2011 at 9:21

GoogleCodeExporter commented 9 years ago

Exp() is available: 
http://www.google.com/support/fusiontables/bin/answer.py?hl=en&answer=178196

Original comment by rshap...@google.com on 13 Sep 2011 at 9:22

Changed state: Acknowledged
Added labels: Component-Logic

GoogleCodeExporter commented 9 years ago

Sure, but only via pow(2.71828183,x), or whatever precision for e you choose, 
which is far from convenient.

Or am I missing something?

Original comment by sergiy.p...@gmail.com on 14 Sep 2011 at 9:47