channelHeatmap {IONiseR} | R Documentation

## Create layout plot of flowcell

### Description

Creates a plot representing the layout of a MinION flow cell. Each circle represents an individual channel with the intensity relecting a specified sequencing metric. This function is a more generalised version of `layoutPlot`, allowing the user to map any value the like on the channel layout.

### Usage

    channelHeatmap(data, zValue)

### Arguments

`data` | A data.frame. Should have at least two columns, one of which has the name 'channel'.
`zValue` | Character string specifying the name of the column to be used for the colour scaling.

### Value

Returns an object of `gg` representing the plot.

### Examples

    library(dplyr)
    if( require(minionSummaryData) ) {
       data(s.typhi.rep2, package = 'minionSummaryData')
       ## calculate and plot the mean number of events recorded by each channel
       avgEvents <- left_join(readInfo(s.typhi.rep2), eventData(s.typhi.rep2), by = 'id') %>%
       group_by(channel) %>%
       summarise(mean_nevents = mean(num_events))
       channelHeatmap(avgEvents, zValue = 'mean_nevents')
    }

[Package IONiseR version 2.6.0 Index]