[R] R:Exponent

[David Winsemius]

> On Dec 31, 2015, at 1:12 PM, David Winsemius <dwinsemius at comcast.net> wrote:
> 
>> 
>> On Dec 31, 2015, at 11:16 AM, Abram Wooten via R-help <r-help at r-project.org> wrote:
>> 
>> Hello, 
>> 
>> I am new to R and I am having trouble adding an exponent to my problem. For instance,
>>> mat5 <-matrix(c(0.5,0.5,0.25,0.75),2,byrow=T)
>>> mat6 <-matrix(c(0.5,0.5,0.25,0.75),2,byrow=T)
>>> mat5%^%2
>> Error: could not find function "%^%"
> 
> The package expm provides matrix exponentials. I think that package Matrix has the same capability, although its help page says that expm::expm is likely to be faster.

And I think I may have conflated matrix power function with matrix exponential. Nonetheless, one can also get a `matpow` function from the same package:


?expm::`%^%`

# returns page for 
matpow {expm}


> 
> -- 
> David
>> 
>> I unsure on weather I should square mat5 or use the two mats and square them both. I really need some help. 
>> 
>> Thanks,
>> Abram 
>> Sent from Mail for Windows 10
>> 

David Winsemius
Alameda, CA, USA