Hi
It seems to me that you would do yourself a favor if you go through R-Intro. See
in line.
> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Norman McBride
> Sent: Tuesday, January 14, 2014 11:56 PM
> To: r-help at r-project.org
> Subject: [R] Implement a Fomula
>
> Now, if I were to move the data over from an excel doc would that
> change anything. I do understand that that I would have to change it to
> a csv document and create a variable for it. Just to give you a more
No. It is one of ways. Quite often it is possible directly copy data by
read.table("clipboard") command.
No. You does not need to create **variable**. read.* function directs its output
to console but you can redirect it to an **object** which is called data.frame.
> visual understanding of what I am doing I attached a picture of the
> head of the data. So the formula would specifically be: Battery Heat
No attachments allowed (with few exceptions). Use dput(head(yourdata)) and copy
the result directly to email.
> (Watts) / ( Surface Area (Square Meters) * ( Battery Temperature
> (Celsius) - Air Temperature (Celsius) ) and that would be the value put
> into the Cooling Coefficient Column currently set at one. One final
> note, when using
> function() should I input variable such as a,b, c and then change then
> change them when using the do.call function or should I just do it with
> the column names the first time? Thank you for the help I really
> appreciate it.
Why do.call? If variables in your data frame are named e.g. bh, sa, bt, at and
your data frame name is eg. cool you can just do
cool$cc <- with(cool, bh/(sa*bt-at))
to get new computed column.
Regards
Petr
>
>
> -Peter
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