[R] Number of digits to display?

[William Dunlap]

> myMatrix <- outer(c(1,24,30,75,96), 20:25, "/")
> print(myMatrix, digits=3)
     [,1]   [,2]   [,3]   [,4]   [,5] [,6]
[1,] 0.05 0.0476 0.0455 0.0435 0.0417 0.04
[2,] 1.20 1.1429 1.0909 1.0435 1.0000 0.96
[3,] 1.50 1.4286 1.3636 1.3043 1.2500 1.20
[4,] 3.75 3.5714 3.4091 3.2609 3.1250 3.00
[5,] 4.80 4.5714 4.3636 4.1739 4.0000 3.84
> MASS::fractions(myMatrix)
     [,1]  [,2]  [,3]  [,4]  [,5]  [,6]
[1,]  1/20  1/21  1/22  1/23  1/24  1/25
[2,]   6/5   8/7 12/11 24/23     1 24/25
[3,]   3/2  10/7 15/11 30/23   5/4   6/5
[4,]  15/4  25/7 75/22 75/23  25/8     3
[5,]  24/5  32/7 48/11 96/23     4 96/25

Bill Dunlap
TIBCO Software
wdunlap tibco.com


On Mon, Oct 26, 2015 at 9:43 AM, Judson <judsonblake at msn.com> wrote:
> How do I control the number of digits to display,
> say, in a matrix, without rounding or losing accuracy
> in subsequent calculations?
> round() of course reduces accuracy.
>
> Also, if all my results
> are really fractions, is there a way to display
> them as fractions of integers rather than
> decimal expressions?
>
> ................... judson blake
>
>         [[alternative HTML version deleted]]
>
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