extract-methods: Extract or Replace Subtensors
In jamesyili/rTensor: Tools for tensor analysis and decomposition

Description Usage Arguments Details Value Examples

Extends '[' and '[<-' from the base array class for the Tensor class. Works exactly as it would for the base 'array' class.

## S4 method for signature 'Tensor'
x[i, j, ..., drop = TRUE]

## S4 replacement method for signature 'Tensor'
x[i, j, ...] <- value

`x`	Tensor to be subset
`i, j, ...`	indices that specify the extents of the sub-tensor
`drop`	whether or not to reduce the number of modes to exclude those that have '1' as the mode
`value`	either vector, matrix, or array that will replace the subtensor

x[i,j,...,drop=TRUE]

an object of class Tensor

tnsr <- rand_tensor()
tnsr[1,2,3]
tnsr[3,1,]
tnsr[,,5]
tnsr[,,5,drop=FALSE]

tnsr[1,2,3] <- 3; tnsr[1,2,3]
tnsr[3,1,] <- rep(0,5); tnsr[3,1,]
tnsr[,2,] <- matrix(0,nrow=3,ncol=5); tnsr[,2,]