An object of class heatmapr includes all the needed information for producing a heatmap. The goal is to separate the preprocessing of the heatmap elements from the graphical rendering of the object, which could be done using plotly (but potentially also with other graphical devices).
heatmapr( x, Rowv, Colv, distfun = dist, hclustfun = hclust, dist_method = NULL, hclust_method = NULL, distfun_row, hclustfun_row, distfun_col, hclustfun_col, dendrogram = c("both", "row", "column", "none"), show_dendrogram = c(TRUE, TRUE), reorderfun = function(d, w) reorder(d, w), k_row = 1, k_col = 1, symm = FALSE, revC, scale = c("none", "row", "column"), na.rm = TRUE, labRow = rownames(x), labCol = colnames(x), cexRow, cexCol, digits = 3L, cellnote = NULL, theme = NULL, colors = "RdYlBu", width = NULL, height = NULL, xaxis_height = 80, yaxis_width = 120, xaxis_font_size = NULL, yaxis_font_size = NULL, brush_color = "#0000FF", show_grid = TRUE, anim_duration = 500, row_side_colors, col_side_colors, seriate = c("OLO", "mean", "none", "GW"), point_size_mat = NULL, custom_hovertext = NULL, ... )
x  A numeric matrix
Defaults to 

Rowv  determines if and how the row dendrogram should be reordered. By default, it is TRUE, which implies dendrogram is computed and reordered based on row means. If NULL or FALSE, then no dendrogram is computed and no reordering is done. If a dendrogram (or hclust), then it is used "asis", ie without any reordering. If a vector of integers, then dendrogram is computed and reordered based on the order of the vector. 
Colv  determines if and how the column dendrogram should be reordered. Has the options as the Rowv argument above and additionally when x is a square matrix, Colv = "Rowv" means that columns should be treated identically to the rows. 
distfun  function used to compute the distance (dissimilarity) between both rows and columns. Defaults to dist. 
hclustfun  function used to compute the hierarchical clustering when Rowv or Colv are not dendrograms. Defaults to hclust. 
dist_method  default is NULL (which results in "euclidean" to be used). Can accept alternative character strings indicating the method to be passed to distfun. By default distfun. is dist hence this can be one of "euclidean", "maximum", "manhattan", "canberra", "binary" or "minkowski". 
hclust_method  default is NULL (which results in "complete" to be used). Can accept alternative character strings indicating the method to be passed to hclustfun By default hclustfun is hclust hence this can be one of "ward.D", "ward.D2", "single", "complete", "average" (= UPGMA), "mcquitty" (= WPGMA), "median" (= WPGMC) or "centroid" (= UPGMC). 
distfun_row  distfun for row dendrogram only. 
hclustfun_row  hclustfun for col dendrogram only. 
distfun_col  distfun for row dendrogram only. 
hclustfun_col  hclustfun for col dendrogram only. 
dendrogram  character string indicating whether to compute 'none', 'row', 'column' or 'both' dendrograms. Defaults to 'both'. However, if Rowv (or Colv) is FALSE or NULL and dendrogram is 'both', then a warning is issued and Rowv (or Colv) arguments are honoured. 
show_dendrogram  Logical vector of length controlling whether the row and column dendrograms are displayed. If a logical scalar is provided, it is repeated to become a logical vector of length two. 
reorderfun  function(d, w) of dendrogram and weights for reordering the row and column dendrograms. The default uses statsreorder.dendrogram 
k_row  an integer scalar with the desired number of groups by which to color the dendrogram's branches in the rows (uses color_branches) If NA then find_k is used to deduce the optimal number of clusters. 
k_col  an integer scalar with the desired number of groups by which to color the dendrogram's branches in the columns (uses color_branches) If NA then find_k is used to deduce the optimal number of clusters. 
symm  logical indicating if x should be treated symmetrically; can only be true when x is a square matrix. 
revC  logical indicating if the column order should be reversed for plotting. Default (when missing)  is FALSE, unless symm is TRUE. This is useful for cor matrix. 
scale  character indicating if the values should be centered and scaled in either the row direction or the column direction, or none. The default is "none". 
na.rm  logical indicating whether NA's should be removed. 
labRow  character vectors with row labels to use (from top to bottom); default to rownames(x). 
labCol  character vectors with column labels to use (from left to right); default to colnames(x). 
cexRow  positive numbers. If not missing, it will override 
cexCol  positive numbers. If not missing, it will override 
digits  integer indicating the number of decimal places to be used by round for 'label'. 
cellnote  (optional) matrix of the same dimensions as 
theme  A custom CSS theme to use. Currently the only valid values are

colors  Either a colorbrewer2.org palette name (e.g. 
width  Width in pixels (optional, defaults to automatic sizing). 
height  Height in pixels (optional, defaults to automatic sizing). 
xaxis_height  Size of axes, in pixels. 
yaxis_width  Size of axes, in pixels. 
xaxis_font_size  Font size of axis labels, as a CSS size (e.g. "14px" or "12pt"). 
yaxis_font_size  Font size of axis labels, as a CSS size (e.g. "14px" or "12pt"). 
brush_color  The base color to be used for the brush. The brush will be
filled with a lowopacity version of this color. 
show_grid 

anim_duration  Number of milliseconds to animate zooming in and out.
For large 
row_side_colors, col_side_colors  data.frame of factors to produce row/column side colors in the style of heatmap.2/heatmap.3. col_side_colors should be "wide", ie be the same dimensions as the column side colors it will produce. 
seriate  character indicating the method of matrix sorting (default: "OLO"). Implemented options include: "OLO" (Optimal leaf ordering, optimizes the Hamiltonian path length that is restricted by the dendrogram structure  works in O(n^4) ) "mean" (sorts the matrix based on the reorderfun using marginal means of the matrix. This is the default used by heatmap.2), "none" (the default order produced by the dendrogram), "GW" (Gruvaeus and Wainer heuristic to optimize the Hamiltonian path length that is restricted by the dendrogram structure) 
point_size_mat  A matrix of values which can be mapped to point size 
custom_hovertext  Custom hovertext matrix (the same dimensions as the input). 
...  currently ignored 
The interface was designed based on heatmap, heatmap.2, and d3heatmap.