removed extra dependencies

    SingleCellExperiment,

    SummarizedExperiment

NeedsCompilation: yes

VignetteBuilder: knitr

importClassesFrom(Matrix,dgeMatrix)

importFrom(Matrix,Matrix)

importFrom(dplyr,select)

importFrom(magrittr,"%>%")

importFrom(methods,as)

importFrom(methods,is)

importFrom(stats,p.adjust)

        y <- Seurat::FetchData(X, group_by) %>% unlist %>% as.character()

    } else if (!group_by %in% names(SummarizedExperiment::colData(X))) {

        idx_use <- which(y %in% intersect(groups_use, y))

    group_pct <- sweep(group_nnz, 1, as.numeric(table(y)), "/") %>% t()

    group_pct_out <- -group_nnz %>%

        sweep(2, colSums(group_nnz) , "+") %>% 

        sweep(1, as.numeric(length(y) - table(y)), "/") %>% t()

    group_means <- sweep(group_sums, 1, as.numeric(table(y)), "/") %>% t()

    res <- Reduce(cbind, lapply(wide_res, as.numeric)) %>% data.frame()

    }) %>% unlist

    usigma <- sqrt(matrix(n1n2, ncol = 1) %*% matrix(rhs, nrow = 1))

#' @import Rcpp

#' @importClassesFrom Matrix dgCMatrix dgTMatrix dgeMatrix TsparseMatrix

#' @importFrom Matrix Matrix

#' @importFrom magrittr %>%

#' @importFrom dplyr select

#' @importFrom stats pnorm p.adjust

#' @importFrom methods is as