Hi Berend,
Your method is really much better. Thank you very much. (Yes I also forgot
to add the $root at the end.)
Best,
Prakasit
On Tue, Feb 19, 2013 at 10:51 PM, Berend Hasselman wrote:
>
> On 19-02-2013, at 09:55, Prakasit Singkateera
> wrote:
>
> > Hi everyone,
> >
> > From your helps o
On 19-02-2013, at 09:55, Prakasit Singkateera wrote:
> Hi everyone,
>
> From your helps of giving me several ideas, eventually I can solve the posted
> problem. Here is the R code. It can be done by applying the uniroot.all to
> the data frame together with the proper form of equation (slight
Hi everyone,
>From your helps of giving me several ideas, eventually I can solve the
posted problem. Here is the R code. It can be done by applying the
uniroot.all to the data frame together with the proper form of equation
(slightly modification of the original equation).
#Generate the sample da
Hi Berend,
Thank you for your information. However, I am still not clear on the Rpmt
function please elaborate more about
- What is the purpose of Rpmt function? Why do you subtract
pmt(xrate,x,xpv) from xpmt? / What is the meaning of xpmt ?
- And what is the purpose of doing Rpmt(xpv/xpmt/2,xra
On 02/19/2013 09:44 AM, Berend Hasselman wrote:
Rolf,
Your attachments got through.
But where is the function newt(…)?
A --- dang! It's another item from my "personal miscellany package"
which I'm so used to having around that I forgot that other people don't
have it.
Attached. Along
Rolf,
Your attachments got through.
But where is the function newt(…)
Berend
On 18-02-2013, at 21:25, Rolf Turner wrote:
>
> Some (quite a few!) years ago I wrote myself a wee function called
> compInt() ("compound interest") to do --- I think --- just what you require.
> I have attached the
Some (quite a few!) years ago I wrote myself a wee function called
compInt() ("compound interest") to do --- I think --- just what you require.
I have attached the code for this function and a help file for it.
If anyone else wants this code, and if the attachments don't get through
the list,
On 18-02-2013, at 10:34, Prakasit Singkateera wrote:
> Hi all,
>
> Firstly, it is not a homework. I am working for a hotel booking company in
> Thailand but I don't want to explain a complex equation and concept here so
> I keep it simple and closely related to what I am trying to solve.I apolo
Hi all,
Firstly, it is not a homework. I am working for a hotel booking company in
Thailand but I don't want to explain a complex equation and concept here so
I keep it simple and closely related to what I am trying to solve.I apology
if my question is not clear enough.
I am new to R and previous
Homework? We don't do homework here.
-- Bert
On Sun, Feb 17, 2013 at 5:10 AM, Prakasit Singkateera
wrote:
> Hi Experts,
>
> I have a dataset of 3 columns:
>
> customer.name product cost
> John Toothpaste 30
> Mike Toothpaste 45
> Peter Toothpaste 40
>
> And I have
ay, February 17, 2013 8:10 AM
Subject: [R] How to do a backward calculation for each record in a dataset
Hi Experts,
I have a dataset of 3 columns:
customer.name product cost
John Toothpaste 30
Mike Toothpaste 45
Peter Toothpaste 40
And I have a function of
ubject: [R] How to do a backward calculation for each record in a
> dataset
>
> Hi Experts,
>
> I have a dataset of 3 columns:
>
> customer.name product cost
> John Toothpaste 30
> Mike Toothpaste 45
> Peter Toothpaste 40
>
> And
Hi Experts,
I have a dataset of 3 columns:
customer.name product cost
John Toothpaste 30
Mike Toothpaste 45
Peter Toothpaste 40
And I have a function of cost whereby
cost = 3.40 + (1.20 * no.of.orders^2)
I want to do a backward calculation for each records (each
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