title: pheatmap: generating two equal width heatmaps with one dendrogram
body: <p>I am trying to create a figure with two side-by-side heatmaps A and B. I want to display a dendrogram to the left of heatmap A, and to cluster the rows in B based on the row names in A. I am able to do this with pheatmap and grid.arrange().</p>
  <p>However, the width of [dendrogram for A + heatmap A] = the width of [heatmap B]. Heatmap A is not as wide as heatmap B. Is there a way to specify that heatmap A and B should be same width, while keeping the dendrogram for heatmap A?</p>
  <p>Thank you.</p>