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Re: st: Transformation of variable with pos/neg values via asinh
From
Nick Cox <[email protected]>
To
"[email protected]" <[email protected]>
Subject
Re: st: Transformation of variable with pos/neg values via asinh
Date
Tue, 19 Nov 2013 14:22:18 +0000
On a different note: Nature in-house staff unilaterally changed the
colour scheme from my originals using -stripplot- (SSC). I am not a
fan of ROYGBIV (rainbow sequence) as colour scheme.
Nick
[email protected]
On 19 November 2013 14:00, Nick Cox <[email protected]> wrote:
> Austin Nichols already reported that he finds odd integer roots
> useful, and I am sure he uses real data (when he is not simulating)>
>
> A group of us used the cube root to help visualise glacier movement data in
>
> http://www.nature.com/nature/journal/v500/n7464/full/nature12382.html?WT.ec_id=NATURE-20130829
> Nick
> [email protected]
>
>
> On 19 November 2013 13:45, David Hoaglin <[email protected]> wrote:
>> Nick,
>>
>> The cube root can be applied, mechanically, to data that include
>> negative values. The question is whether it makes sense to apply the
>> cube root to a particular set of such data. I am open to realistic
>> examples.
>>
>> David Hoaglin
>>
>> On Tue, Nov 19, 2013 at 8:16 AM, Nick Cox <[email protected]> wrote:
>>> In case it's unclear to anyone
>>>
>>> (a) Cube roots can be useful for transforming amounts, not least if
>>> the amount could be zero.
>>>
>>> (b) Cube roots -- much more unusually -- extend to negative quantities
>>> too, just as (-2)(-2)(-2) = -8.
>>>
>>> The two positions
>>> Nick
>>> [email protected]
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