Heat maps using R
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One of the great things about following blogs on R is seeing what others are doing & being able to replicate and try out things on my own data sets.
For example, some great links on rapidly creating heat maps using R.
- Drawing Heat Maps in R
- How to Make a Heatmap – a Quick and Easy Solution
- ggplot2: Quick Heatmap Plotting
The basic steps in the process are (i) to scale the numeric data using the scale function, (ii) create a Euclidean distance matrix using the dist function and then (iii) plotting the heat map with the heatmap function.
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