[R] how to find the index of points selected from a scatter plot?

[Peter Ehlers]

On 2012-08-31 16:03, Bert Gunter wrote:
> ?which ##
> as in ix <- which(x==values)
>
> -- Bert

Or maybe ?identify.

Peter Ehlers

>
> On Fri, Aug 31, 2012 at 2:09 PM, Michael <comtech.usa at gmail.com> wrote:
>
>> Hi all,
>>
>> I am using "locator" to select the points from a scatter plot...
>>
>> This is all fine.
>>
>> But the problem is that the locator only returns the axis values of the
>> selected points.
>>
>> Instead, I would like to get the index of these select points...
>>
>> The axis values are real-values so it's a bit hard for me to directly
>> reverse-engineer the index nubmers..
>>
>> How to do that?
>>
>> Thank you!
>>
>>          [[alternative HTML version deleted]]
>>
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>
>
>