hist_sample {MatrixQCvis}

R Documentation

Plot a histogram of the number of a category

Description

'hist_sample' plots the number of a category (e.g. sample types) as a histogram. It use the returned 'tbl' from 'hist_sample_num'.

Usage

hist_sample(tbl, category = "type")

Arguments

tbl	'tbl' as returned by 'hist_sample_num'
category	'character', x-axis label of the plot

Value

'gg' object from 'ggplot2'

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)

tbl <- hist_sample_num(se, category = "type")
hist_sample(tbl)

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