data.entry(), it's easy to visually fill (small) matrices in r.
Let's see it in action. First, I create a 4x3 matrix:
mx <- matrix(nrow=4, ncol=3)
show(mx)
[,1] [,2] [,3]
[1,] NA NA NA
[2,] NA NA NA
[3,] NA NA NA
[4,] NA NA NA
The matrix is created with the cells' values being NA Now, in order to assign values to these cells, I use
data.entry(mx)
This opens a small window where I can enter the data.
This is how the cells were filled before my editing them:
And here's how they looked after my editing them just before I used File > Close:
Back in the shell, the matrix has indeed changed its values:
show(mx)
var1 var2 var3
[1,] 2 4 2
[2,] 12345 8 42
[3,] 5 6 489
[4,] 9 22 11
Pretty cool, imho.
