createHeatmap: Create Heat Map type of plot.

Description

Create heat map visualization of 2D matrix from the data frame data pre-computed with computeHeatmap.

Usage

createHeatmap(data, x, y, fill, facet = NULL, ncol = 1,
    baseSize = 12, baseFamily = "sans",
    thresholdValue = NULL, thresholdName = fill,
    text = FALSE, textFill = fill, percent = FALSE,
    digits = ifelse(percent, 2, 4),
    divergingColourGradient = FALSE,
    lowGradient = ifelse(divergingColourGradient, muted("red"), "#56B1F7"),
    midGradient = "white",
    highGradient = ifelse(divergingColourGradient, muted("blue"), "#132B43"),
    title = paste("Heatmap by", fill), xlab = x, ylab = y,
    legendPosition = "right",
    defaultTheme = theme_bw(base_size = baseSize, base_family = baseFamily),
    themeExtra = NULL)

Arguments

data

data frame contains data computed for heatmap

name of a column containing x variable values (1st or horizontal dimenstion) in 2D matrix

name of a column containing y variable values (2d or vertical dimension) in 2D matrix

fill

name of a column with values to map to heatmap gradient colors (lowGradient, highGradient, and optionally midGradient).

facet

vector of 1 or 2 column names to split up data to plot the subsets as facets. If single name then subset plots are placed next to each other, wrapping with ncol number of columns (uses face

ncol

number of facet columns (applies when single facet column supplied only - see parameter facet).

baseSize

theme base font size

baseFamily

theme base font family

thresholdValue

threshold to use to display data in heatmap (if NULL then do not use threshold)

thresholdName

name of data attribute from data to use (by defult use fill)

text

if TRUE then display values in heatmap table (default: FALSE)

textFill

text to display (applies only when text is TRUE), by defaul use fill values

percent

format text as percent

digits

number of digits to use in text

lowGradient

colour for low end of gradient.

midGradient

colour for mid point.

highGradient

colour for high end of gradient.

divergingColourGradient

logical diverging colour gradient places emphasize on both low and high leaving middle neutral. Use when both end grandient colours represent critical values such as negative and positive extremes (e.g. temprature, outliers, etc.)

title

plot title

xlab

a label for the x axis, defaults to a description of x.

ylab

a label for the y axis, defaults to a description of y.

legendPosition

the position of legends. ("left", "right", "bottom", "top", or two-element numeric vector). "none" is no legend.

defaultTheme

plot theme to use: theme_bw (default), theme_grey, theme_classic or

themeExtra

any additional theme settings that override default theme.

Description

Usage

Arguments

See Also