Dear Samsad,
The usual use of the arcsine transformation for proportions is
arcsine-squareroot. Thus, in R, for proportions in p, you can use
asin(sqrt(p)).
You could have found the asin() function yourself in several ways, including
help.search("arcsin"), which turns up the help page for trigonometric
functions.
As well, the logit transformation, log(p/(1 - p)), is usually preferred to the
arcsine-squareroot transformation for proportions because the former is
unbounded.
I hope this helps,
John
-----------------------------
John Fox, Professor
McMaster University
Hamilton, Ontario
Canada L8S 4M4
Web: socserv.mcmaster.ca/jfox
> -----Original Message-----
> From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Samsad Afrin
> Himi
> Sent: July 31, 2016 4:55 AM
> To: r-help@r-project.org
> Subject: [R] Arcsine Tranformation.
>
> Dear R-Team,
>
> How can I do arcsine tzransformation in R? My data is proportional score.
>
> Could you please help me out?
>
> Best,
> Samsad
>
> [[alternative HTML version deleted]]
>
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