plotFeature: Plot features of interest

In Trendy: Breakpoint analysis of time-course expression data

Description

plot each feature with (or without) the fitted trend.

Usage

plotFeature(Data, tVectIn = NULL, featureNames, showFit = TRUE,
  simple = FALSE, showLegend = TRUE, trendyOutData = NULL,
  cexLegend = 1, legendLocation = "side", xlab = "Time",
  ylab = "Normalized Expression", segColors = c("chartreuse3",
  "coral1", "black", "cornflowerblue"), customTitle = NULL,
  customLabels.x = NULL, spacing.x = NULL)

Arguments

Data	a matrix of normalized expression measurements. Rows are genes/features and columns are samples.
tVectIn	a numerical vector indicating the time-points or the order of samples. If it is NULL (default), then the time/order will be assumed to be equaly spaced from 1:N (N is number of samples).
featureNames	a list of genes or features to plot
showFit	whether to plot the segmented regression fitting (default is TRUE)
simple	if TRUE the plot will not highlight the breakpoints and segments and will only display a black fitted line. (default is FALSE)
showLegend	if TRUE and simple=FALSE then a legend will be output (default = TRUE)
trendyOutData	segmented regression fitting result from running trendy(); if showFit is TRUE and trendyOutData is NULL, then the segmented regression will be fit for each of the genes and it may take longer to run
cexLegend	cex option for sizing of legend text, default is 1.
legendLocation	whether to place the legend to the right 'side' of each plot or at the 'bottom' of a multo-panelled plot (default is 'side').
xlab	x-axis name
ylab	y-axis name
segColors	define colors for the 'breakpoint', and 'up', 'same', 'down' segments (default: segColors = c("chartreuse3", "coral1", "black", "cornflowerblue"))
customTitle	default is set the plot title as the name of the feature. Otherwise this should be a named vector, with the featureName as the name and the element as the desired plot title. (i.e. customTitle <- c("MyTitle" = gene1)).
customLabels.x	specify x-axis tick labels instead of using the default values from tVectIn.
spacing.x	specify x-axis tick spacing, smaller values give more tick marks.

Value

plot of gene expression and fitted line

Author(s)

Ning Leng and Rhonda Bacher

Examples

 d1 <- matrix(c(c(rnorm(50,5,1),sort(rnorm(50, 15, 5))), rnorm(100, 50,10)), 2, 100, TRUE)
 rownames(d1) <- c("g1","g2")
 colnames(d1) <- paste0("time", seq_len(100))
 plotFeature(d1, featureNames=c("g1","g2"))

Trendy documentation built on Nov. 8, 2020, 8:10 p.m.