# [R] Upper bands and lower bands

Bert Gunter bgunter.4567 at gmail.com
Fri Jun 2 07:01:27 CEST 2017

```Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )

On Thu, Jun 1, 2017 at 11:20 AM, Pedro páramo <percentil101 at gmail.com> wrote:
> Hi all
>
> I want to add a band of fluctuación (exponential decreading) to a linear
> deacrecing values
>
> Imagine: I have a matrix like c(10,9,8,7,6,5,4,3,2,1)

Ummm... That is not a matrix.  It's a vector.

-- Bert

>
> The thing is I want  two new lines so that the máximum value of the new
> colum on the máximum is from 10% to 5% higher and the same lower for the
> mínimum
>
> the final two matix will be something like
>
> c(10+0.10*10,9+0.089*9,8+0.075*8.....,1+0.05*1)
> c(10-0.10*10,9-0.09*9,8-0.075*8.....,1-0.05*1)
>
> What I´m looking for is a function tu calculate de "values, weights" so
> that including the 10% and 5% and the nunmber of decreasing values, in this
> case n=10, calculates de smotth weigths.
>
> I don´t know if I have expalined well so thar finally putting initial value
> final and periods I can find a matrix like
>
> g(0.1,0.89,0.79,0.075,...,0.05)
>
> Exists something like that?
>
>         [[alternative HTML version deleted]]
>
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```