plotHeatmap: Function "plotHeatmap"
In Coraline66/RNASeqAnalysis: Perform RNASeq Data Analysis

This function plots heat maps using given input matrix and group conditions

plotHeatmap(geneExp, group, myPalette, legendName = "Gene expression",
  method = "ward.D2", distance = "spearman", rowCluster = TRUE,
  colCluster = TRUE, rowName = TRUE, colName = TRUE, s1 = 15,
  s2 = 8, s3 = 12, s4 = 6, s5 = 12, s6 = 100, s7 = 2, s8 = 4,
  s9 = 2, H, W, title = "Heatmap", Date)

`geneExp`	a matrix, rows correspond to genes and columns correspond to samples if it is a gene expression matrix.
`group`	a data frame with each column a different column annotation which needs to be added to the heatmap, rownames correspond to sample ID.
`myPalette`	a named list with color palettes for each annotation, each element in the list should be a named vector.
`legendName`	name of the legend, default is "Gene expression".
`method`	a character type variable indicating the clustering method. Default is "ward.D2".
`distance`	a character type variable indicating the distance used for clustering. Default is "spearman".
`rowCluster`	a logical variable indicating whether to cluster the rows. Default is TRUE.
`colCluster`	a logical variable indicating whether to cluster the columns. Default is TRUE.
`rowName`	a logical variable indicating whether to show the row names. Default is TRUE.
`colName`	a logical variable indicating whether to show the column names. Default is TRUE.
`s1`	a numerical variable indicating the fontsize of legend title. Default is 15.
`s2`	a numerical variable indicating the fontsize of row names. Default is 8.
`s3`	a numerical variable indicating the fontsize of column names. Default is 12.
`s4`	a numerical variable indicating the height and width of grid in defined unit of column legend. Default is 6.
`s5`	a numerical variable indicating the width of the dendrogram for columns and rows. Default is 12.
`s6`	a numerical variable indicating the width of space for rowname and colname annotations. Default is 100.
`s7`	a numerical variable indicating the space between each top annotation. Default is 2.
`s8`	a numerical variable indicating the height of each column annotation. Default is 4.
`s9`	a numerical variable indicating the space between heatmap body and annotations. Default is 2.
`H`	a numerical variable indicating the height of saved figure. Default is 15.
`W`	a numerical variable indicating the width of save figure. Default is 15.
`Date`	a Date object obtained from Sys.Date