I have 1074 differential expression genes with 504 samples by their numerical expression values .Now How can I draw a heat map?
Please explain, in a more detailed form, the data that you currently have. Please provide a sample of your data, if possible.
At the most simple level, one simply needs to do:
At a more advanced level, we get to: A simple tutorial for a complex ComplexHeatmap
i have an excel file includes a column with all the gene IDs and each genes have 504 expression value related 504 samples.(control and tumor samples)
You can read the data into R via the readxl package and then generate the heatmap that way.
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