cellCellRanks {scTensor} | R Documentation

## Rank estimation of the CCI-tensor

### Description

SVD is performed in each mode.

### Usage

    cellCellRanks(sce, centering=TRUE,
        mergeas=c("mean", "sum"), outerfunc=c("*", "+"), comb=c("random", "all"),
        num.sampling=100, num.perm=1000, assayNames = "counts", verbose=FALSE,
        num.iter1=5, num.iter2=5, num.iter3=NULL)

### Arguments

`sce` | A object generated by instantization of SingleCellExperiment-class.
`centering` | When the value is TRUE, input matrix is summarized as celltype-level vectors (Default: TRUE).
`mergeas` | When the centering is TRUE, "mean" (celltype-level mean vector) or "sum" (celltype-level sum vector) is calculated (Default: "mean").
`outerfunc` | When the centering is TRUE, "*" (Kronecker product) or "+" (Kronecker sum) or is calculated (Default: "+").
`comb` | When the centering is FALSE, "random" (random cell-cell pairing) or "all" (all possible cell-cell pairing) is calculed (Default: "random").
`num.sampling` | The number of random sampling used (Default: 100).
`num.perm` | The number of the permutation in label permutation test (Default: 1000).
`assayNames` | The unit of gene expression for using scTensor (e.g. normcounts, cpm...etc) (Default: "counts").
`verbose` | The verbose parameter for nnTensor::NTD (Default: FALSE).
`num.iter1` | The number of iteration to estimate the rank of mode-1 matricised data tensor (Default: 5).
`num.iter2` | The number of iteration to estimate the rank of mode-2 matricised data tensor (Default: 5).
`num.iter3` | The number of iteration to estimate the rank of mode-3 matricised data tensor (Default: NULL).

### Value

RSS: A list with three elements, in which each element means the average reconstructed error in each rank. selected: A vector with three elements, in which each element means the estimated ranks in mode-1, 2 and 3 matricization.

### Author(s)

Koki Tsuyuzaki

### See Also

`SingleCellExperiment`.

### Examples

    showMethods("cellCellRanks")

[Package scTensor version 1.4.3 Index]