R help - May 2007 - pie initial angle

Dear all,

I'd like to produce a simple pie chart for a customer (I know it's bad
but
they insist), and I have some difficulties setting the initial angle.
For example:

pie(c(60, 40), init.angle=14)

and 

pie(c(80, 20), init.angle=338)

both present the slices in the same direction, where:

pie(c(60, 40))
pie(c(80, 20))

present the slices in different directions.

I read everything I could about init.angle argument, I even played with 
various formulas to compute it, but I just can't figure it out.
How can I preserve the desired *direction* of the slices?

Many thanks in advance,
Adrian


-- 
Adrian Dusa
Romanian Social Data Archive
1, Schitu Magureanu Bd
050025 Bucharest sector 5
Romania
Tel./Fax: +40 21 3126618 \
          +40 21 3120210 / int.101

Not sure I understand what you want but the clockwise= argument
of pie determines whether the slice is drawn clockwise or counter
clockwise.

On 5/29/07, Adrian Dusa <dusa.adrian at gmail.com>
wrote:
>
> Dear all,
>
> I'd like to produce a simple pie chart for a customer (I know it's
bad but
> they insist), and I have some difficulties setting the initial angle.
> For example:
>
> pie(c(60, 40), init.angle=14)
>
> and
>
> pie(c(80, 20), init.angle=338)
>
> both present the slices in the same direction, where:
>
> pie(c(60, 40))
> pie(c(80, 20))
>
> present the slices in different directions.
>
> I read everything I could about init.angle argument, I even played with
> various formulas to compute it, but I just can't figure it out.
> How can I preserve the desired *direction* of the slices?
>
> Many thanks in advance,
> Adrian
>
>
> --
> Adrian Dusa
> Romanian Social Data Archive
> 1, Schitu Magureanu Bd
> 050025 Bucharest sector 5
> Romania
> Tel./Fax: +40 21 3126618 \
>          +40 21 3120210 / int.101
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> 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.
>

Hi

r-help-bounces at stat.math.ethz.ch napsal dne 29.05.2007 12:53:14:
> 
> Dear all,
> 
> I'd like to produce a simple pie chart for a customer (I know it's
bad
but 
> they insist), and I have some difficulties setting the initial angle.
> For example:
> 
> pie(c(60, 40), init.angle=14)
> 
> and 
> 
> pie(c(80, 20), init.angle=338)
> 
> both present the slices in the same direction, where:
I presume you misunderstand init angle. Above statements points an arrow 
of both slices to the similar direction but slices starts at different 
initial angles.
> 
> pie(c(60, 40))
> pie(c(80, 20))
> 
> present the slices in different directions.
The arrow slices point to different direction **but** they both **start** 
at the same initial angle 0 deg. 
> 
> I read everything I could about init.angle argument, I even played with 
> various formulas to compute it, but I just can't figure it out.
> How can I preserve the desired *direction* of the slices?
You probably need to compute initial angle based on proportions in your 
pie chart (If you really want each pie chart starting at different 
position). 

Regards
Petr
> 
> Many thanks in advance,
> Adrian
> 
> 
> -- 
> Adrian Dusa
> Romanian Social Data Archive
> 1, Schitu Magureanu Bd
> 050025 Bucharest sector 5
> Romania
> Tel./Fax: +40 21 3126618 \
>           +40 21 3120210 / int.101
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> 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.