Hello, I have a metadata file with many categorical variables. I want to make like a heatmap (using R) so I can show my variables in a more compelling way in a slide for my students.

I tried ComplexHeatmap, but I could not get it to color each row separately.

For example (a smaller version of my metadata):

meta <- data.frame(tissue = c("liver", "liver", "heart, "heart", "lung"),
                               drug = c("PMX", "PMX", "PMX", "Ctr", "Ctr"),
                               age = c("12mo", "12mo", "6mo", "6mo", "6mo"),
                               model = c("mm10", "mm10", "mm10", "mm10", "mm10")

I would like a heatmap in which:

• each column above (tissue, drug, age) is a row of the heatmap
• each row would have its own legend
• each row would have its own set of colors per factor

For example my output would be a heatmap:

• row 1 (tissue) would have liver in green, heart in red, lung in yellow
• row 2 (drug) would have PMX in blue and Ctr in gray
• row3 would have 12mo in pink and 6mo in purple
• row 4 would be all orange (mm10) If possible all rows separated by a white line, or somthing similar

Can someone please help?

Thank you!