hist_sample_num {MatrixQCvis} | R Documentation

## Return the number of a category

### Description

'hist_sample_num' returns the number of a category (e.g. sample types) as a 'tbl'. The function will retrieve first the column 'category' in 'colData(se)'. The function will return a 'tbl' containing the numerical values of the quantities.

### Usage

    hist_sample_num(se, category = "type")

### Arguments

`se` | 'SummarizedExperiment' object
`category` | 'character', corresponding to a column in 'colData(se)'

### Value

'tbl'

### Examples

    ## create se
    a <- matrix(1:100, nrow = 10, ncol = 10,
                dimnames = list(1:10, paste("sample", 1:10)))
    a[c(1, 5, 8), 1:5] <- NA
    set.seed(1)
    a <- a + rnorm(100)
    cD <- data.frame(name = colnames(a), type = c(rep("1", 4), rep("2", 6)))
    rD <- data.frame(spectra = rownames(a))
    se <- SummarizedExperiment::SummarizedExperiment(assay = a,
        rowData = rD, colData = cD)

    hist_sample_num(se, category = "type")

[Package MatrixQCvis version 1.2.4 Index]