Dear all How does print.htest display the p-value in scientific notation?> (x <- cor.test(iris[[1]], iris[[3]]))Pearson's product-moment correlation data: iris[[1]] and iris[[3]] t = 21.65, df = 148, p-value < 2.2e-16 alternative hypothesis: true correlation is not equal to 0 95 percent confidence interval: 0.8270 0.9055 sample estimates: cor 0.8718 Above the p-value comes as '< 2.2e-16', while inspecting the object I get a good old '0'.> x$p.value[1] 0 I tried to inspect print.htest but couldn't find it. I also played with format, round and the like to no avail. Any pointers? Regards Liviu -- Do you know how to read? http://www.alienetworks.com/srtest.cfm http://goodies.xfce.org/projects/applications/xfce4-dict#speed-reader Do you know how to write? http://garbl.home.comcast.net/~garbl/stylemanual/e.htm#e-mail
Isn't it true that 0 < 2.2e-16?
cheers,
Rolf Turner
On 03/10/11 20:53, Liviu Andronic wrote:> Dear all
> How does print.htest display the p-value in scientific notation?
>> (x<- cor.test(iris[[1]], iris[[3]]))
> Pearson's product-moment correlation
>
> data: iris[[1]] and iris[[3]]
> t = 21.65, df = 148, p-value< 2.2e-16
> alternative hypothesis: true correlation is not equal to 0
> 95 percent confidence interval:
> 0.8270 0.9055
> sample estimates:
> cor
> 0.8718
>
> Above the p-value comes as '< 2.2e-16', while inspecting the
object I
> get a good old '0'.
>> x$p.value
> [1] 0
>
> I tried to inspect print.htest but couldn't find it. I also played
> with format, round and the like to no avail. Any pointers?
>
> Regards
> Liviu
>
>
> is(x)[1] "htest"> # take a look at stats:::print.htest > format.pval(x$p.value)[1] "< 2.22e-16" Does that answer your question? KK On Mon, Oct 3, 2011 at 10:53 AM, Liviu Andronic <landronimirc at gmail.com> wrote:> Dear all > How does print.htest display the p-value in scientific notation? >> (x <- cor.test(iris[[1]], iris[[3]])) > > ? ? ? ?Pearson's product-moment correlation > > data: ?iris[[1]] and iris[[3]] > t = 21.65, df = 148, p-value < 2.2e-16 > alternative hypothesis: true correlation is not equal to 0 > 95 percent confidence interval: > ?0.8270 0.9055 > sample estimates: > ? cor > 0.8718 > > Above the p-value comes as '< 2.2e-16', while inspecting the object I > get a good old '0'. >> x$p.value > [1] 0 > > I tried to inspect print.htest but couldn't find it. I also played > with format, round and the like to no avail. Any pointers? > > Regards > Liviu > > > -- > Do you know how to read? > http://www.alienetworks.com/srtest.cfm > http://goodies.xfce.org/projects/applications/xfce4-dict#speed-reader > Do you know how to write? > http://garbl.home.comcast.net/~garbl/stylemanual/e.htm#e-mail > > ______________________________________________ > R-help at r-project.org 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. >