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

This function generates heatmap for the genes from selected pathways(pathway of interest)

plotHeatmap_POI(condition = c("mutant", "wildtype"), geneES, group,
  palette1, palette2 = c("#A6CEE3", "#1F78B4", "#B2DF8A", "#33A02C",
  "#FB9A99", "#E31A1C", "#FDBF6F", "#FF7F00", "#CAB2D6", "#6A3D9A"),
  groupName = "Pathway", legendName = "Gene expression", POI, GOI,
  rowCluster = TRUE, colCluster = TRUE, rowName = TRUE,
  colName = TRUE, distance = "spearman", method = "ward.D2", title,
  s1 = 15, s2 = 4, s3 = 11, s4 = 6, s5 = 12, s6 = 100,
  s7 = 2, s8 = 4, s9 = 2, H = 11, W = 28, Date)

`condition`	a vector of characters representing all groups of samples, default is c("mutant", "wildtype").
`geneES`	an ExpressionSet object representing the gene expression matrix, at least two columns in pData(geneES) is required, "SampledID" indicating samples and "Group" indicating which condition the samples are in.
`group`	a data frame with each column a different column annotation which needs to be added to the heatmap, rownames correspond to sample ID.
`palette1`	a named list with color palettes for each annotation, each element in the list should be a named vector.
`palette2`	a character type vector representing the colors used for distinguishing "POI", default is c("#A6CEE3", "#1F78B4", "#B2DF8A", "#33A02C", "#FB9A99", "#E31A1C", "#FDBF6F", "#FF7F00", "#CAB2D6", "#6A3D9A").
`groupName`	a character variable indicating the POI name, default is "Pathway".
`legendName`	a character variable indicating the legend name, default is "Gene expression".
`POI`	a character type vector consisting of names of selected pathways.
`GOI`	a list consisting of gene names in the pathways of "POI"(can be all or partial genes).
`colCluster`	a boolean variable indicating whether to cluster the columns. Default is TRUE.
`rowName`	a boolean variable indicating whether to show the row names. Default is TRUE.
`colName`	a boolean variable indicating whether to show the column names. Default is TRUE.
`distance`	a character variable indicating which distance measure to be used in clustering, either one of "euclidean", "maximum", "manhattan", "canberra", "binary", "minkowski", "pearson", "spearman", "kendall", or a dist object. Default is "spearman".
`method`	a character variable indicating the clustering method used, pass to hclust. Default is "ward.D2".
`title`	a character variable containing information for filename.
`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 4.
`s3`	a numerical variable indicating the fontsize of column names. Default is 11.
`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 11.
`W`	a numerical variable indicating the width of save figure. Default is 28.
`Date`	a Date object obtained from Sys.Date
`rowClutster`	a boolean variable indicating whether to cluster the rows. Default is TRUE.