[R] Upper bands and lower bands

[PIKAL Petr]

Hi

seems to me like homework, this list has no homework policy.

For linear decay you can use

> temp<-c(10,9,8,7,6,5,4,3,2,1)
> plus <- seq(10,5, length=10)/100
> plot(1:10, temp, ylim=c(0, max(temp+plus)))
> lines(1:10, temp+temp*plus)
> lines(1:10, temp-temp*plus)
>
 for exponential you should solve equation

plus=a*exp(k*t)

for 10 = 0.1 and 1 = 0.05.

Cheers
Petr


> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Pedro
> páramo
> Sent: Friday, June 2, 2017 8:37 AM
> To: Bert Gunter <bgunter.4567 at gmail.com>
> Cc: R-help <r-help at r-project.org>
> Subject: Re: [R] Upper bands and lower bands
>
> Sorry,
>
> For me a vector is a matrix with mx1 dimmensions. But it is true that it is not
> the way I correctly must talk in R.
>
> Can you guide me in what I´m trying to do? I´m trying to find what I want in
> Excel using something like a parabolic function but dind´t get yet (then to try
> to replicate in R).
>
>
> 2017-06-02 7:01 GMT+02:00 Bert Gunter <bgunter.4567 at gmail.com>:
>
> > 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]]
> > >
> > > ______________________________________________
> > > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > > https://stat.ethz.ch/mailman/listinfo/r-help
> > > PLEASE do read the posting guide http://www.R-project.org/
> > posting-guide.html
> > > and provide commented, minimal, self-contained, reproducible code.
> >
>
>       [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproducible code.

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