jarry <jarryjarry58 <at> hotmail.com> writes:

>

>

> Hi,

>

> I am reading an article in which, first, some given "p-results" are

> obtained, and, second, these are afterwards transformed and expressed as the

> "NEGATIVE base-10 logarithm of the p-value".

>

> My question is if anyone could indicate how is such transformation achieved

> with R and how are they expressed exponentially, as in for example 1.8E-18.

>

?? presumably

-log10(pvalue)

??

so a p-value of 1.8e-18 (i.e., 1.8 times 10^-18) would correspond to

a value of 17.74

______________________________________________

[hidden email] mailing list

https://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the posting guide

http://www.R-project.org/posting-guide.htmland provide commented, minimal, self-contained, reproducible code.