Creating Heatmaps Of Diffrentially Expressed Gene

Question

[sh]

Hi I have 1074 differential expression genes with 504 samples by their numerical expression values .Now How can I draw a heat map?

Answer 1

[Kevin Blighe]

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:

heatmap(x)

At a more advanced level, we get to: A simple tutorial for a complex ComplexHeatmap

[sh]

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)

[Kevin Blighe]

You can read the data into R via the readxl package and then generate the heatmap that way.