plot_variation {SWATH2stats} | R Documentation |
This function plots the coefficient of variation within replicates for a given value. If decoys are present these are removed before plotting.
plot_variation(data, column.values = "Intensity", Comparison = transition_group_id + Condition ~ BioReplicate, fun.aggregate = NULL, label=TRUE, ...)
data |
Data frame that is produced by the OpenSWATH/pyProphet workflow |
column.values |
Indicates the columns for which the variation is assessed. This can be the Intensity or Signal, but also the retention time. |
Comparison |
The comparison for assessing the variability. Default is to assess the variability per transition_group_id and Condition over the different Replicates. Comparison is performed using the dcast() function of the reshape2 package. |
fun.aggregate |
If for the comparison values have to be aggregated one needs to provide the function here. |
label |
Option to print value of median cv. |
... |
further arguments passed to method. |
Returns a list with the data and calculated cv and a table that summarizes the mean, median and mode cv per Condition (if Condition is contained in the comparison). In addition it plots in Rconsole a violin plot with the observed coefficient of variations.
Peter Blattmann
data("OpenSWATH_data", package="SWATH2stats") data("Study_design", package="SWATH2stats") data <- sample_annotation(OpenSWATH_data, Study_design) plot_variation(data)