On 2012-11-16 01:30, Berend Hasselman wrote:
On 16-11-2012, at 09:43, e-letter wrote:
On 16/11/2012, Rolf Turner wrote:
Your question makes little sense. Functions have derivatives --- at
least some of them do. Data sets do not have derivatives. The
functions D(), deriv() etc. work on sp
On 16-11-2012, at 09:43, e-letter wrote:
> On 16/11/2012, Rolf Turner wrote:
>>
>> Your question makes little sense. Functions have derivatives --- at
>> least some of them do. Data sets do not have derivatives. The
>> functions D(), deriv() etc. work on specified analytic expressions
>> for
On 16/11/2012, Rolf Turner wrote:
>
> Your question makes little sense. Functions have derivatives --- at
> least some of them do. Data sets do not have derivatives. The
> functions D(), deriv() etc. work on specified analytic expressions
> for functions --- data sets do not come into the pictu
On 16/11/12 02:40, e-letter wrote:
Readers,
A data set comprises
A B C
10 6 .2
20 7 .4
30 8 .16
40 9 .0256
My requirement is to obtain the derivative for values of A with
respect to B, create a function in R and plot this derivative again
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