Why DoHeatmap Does not show all genes in genes.use? I am heatmaping a list of genes by DoHeatmap function in Seurat R package. I am sure I have 212 genes but heat map shows only a few of my genes

&gt; DoHeatmap(
+        object = seurat,
+        genes.use = genes,
+        slim.col.label = TRUE, 
+        remove.key = TRUE)
&gt; dim(as.matrix(seurat@data))
[1] 12293   209

&gt; length(genes)
[1] 212
&gt; class(genes)
[1] "character"

&gt; class(seurat)
[1] "seurat"
attr(,"package")
[1] "Seurat"
&gt; 


Please look at heat map, I was trying to plot 212 genes but you seeing only few genes are among my 212 genes

Please somebody save me from this confusion
https://github.com/satijalab/seurat/issues/287

In this post there is a answer for my question, however when I set scale to FALSE again the number of genes did not change but the shape of plot dramatically changed. So, maybe the issue is because of scaling that did not solve my problem