[R] (no subject)

[jim holtman]

Is this possibly FAQ 7.31?  Print your matrix with options(digit=20)
to see better what the values are.  You might also look at
'all.equal'.

On Thu, Nov 10, 2011 at 7:05 PM, Rui Esteves <ruimaximo at gmail.com> wrote:
> Hello.
>
> I have this matrix:
>
> cy            [,1]       [,2]       [,3]       [,4]       [,5]       [,6]
>  [1,]  1.0000000  1.0000000 -0.5164570 -0.5164087 -0.4004139 -0.4003719
>  [2,]  1.0000000  1.0000000 -0.5164570 -0.5164087 -0.4004139 -0.4003719
>  [3,] -0.5164570 -0.5164570  1.0000000  1.0000000 -0.1186691 -0.1186972
>  [4,] -0.5164087 -0.5164087  1.0000000  1.0000000 -0.1186995 -0.1187276
>  [5,] -0.4004139 -0.4004139 -0.1186691 -0.1186995  1.0000000  1.0000000
>  [6,] -0.4003719 -0.4003719 -0.1186972 -0.1187276  1.0000000  1.0000000
>  [7,] -0.4058070 -0.4058070 -0.1150400 -0.1150706  0.9999826  0.9999824
>  [8,] -0.4061715 -0.4061715 -0.1147942 -0.1148249  0.9999802  0.9999799
>  [9,] -0.4061804 -0.4061804 -0.1147882 -0.1148189  0.9999801  0.9999799
> [10,]  1.0000000  1.0000000 -0.5164570 -0.5164087 -0.4004139 -0.4003719
>            [,7]       [,8]       [,9]      [,10]
>  [1,] -0.4058070 -0.4061715 -0.4061804  1.0000000
>  [2,] -0.4058070 -0.4061715 -0.4061804  1.0000000
>  [3,] -0.1150400 -0.1147942 -0.1147882 -0.5164570
>  [4,] -0.1150706 -0.1148249 -0.1148189 -0.5164087
>  [5,]  0.9999826  0.9999802  0.9999801 -0.4004139
>  [6,]  0.9999824  0.9999799  0.9999799 -0.4003719
>  [7,]  1.0000000  0.9999999  0.9999999 -0.4058070
>  [8,]  0.9999999  1.0000000  1.0000000 -0.4061715
>  [9,]  0.9999999  1.0000000  1.0000000 -0.4061804
> [10,] -0.4058070 -0.4061715 -0.4061804  1.0000000
>
>
> I want to know the coordinates of the 1's only in the cy's lower triangle.
>
>
> If I do cy%in%1 or cy ==1 I have this result:  [1]  TRUE FALSE FALSE
> FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE  TRUE
>  [13] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE  TRUE FALSE
>  [25] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE  TRUE FALSE FALSE
>  [37] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE  TRUE FALSE FALSE FALSE
>  [49] FALSE FALSE FALSE FALSE FALSE FALSE FALSE  TRUE FALSE FALSE FALSE FALSE
>  [61] FALSE FALSE FALSE FALSE FALSE FALSE  TRUE FALSE FALSE FALSE FALSE FALSE
>  [73] FALSE FALSE FALSE FALSE FALSE  TRUE FALSE FALSE FALSE FALSE FALSE FALSE
>  [85] FALSE FALSE FALSE FALSE  TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
>
> [97] FALSE FALSE FALSE TRUE
>
>  It seems that is only considering the principal diagonal.
>
>
> I don't understand why...
>
>
> Thank you,
>
>
> Rui
>
>        [[alternative HTML version deleted]]
>
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> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.