Plotting two categorical variables against a continuous variable, map continuous variable to colorbar or marker size

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Michael Wagner 2019-11-15

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https://ww2.mathworks.cn/matlabcentral/answers/491338-plotting-two-categorical-variables-against-a-continuous-variable-map-continuous-variable-to-colorba

编辑： Adam Danz 2019-11-15

Hello,

I would like to construct a plot that has a categorical variable on the y-axis (protein names) and another categorical variable on the x-axis (treatment conditions), and numerical data (expression values) scaled to a colorbar or marker size. How might I go about doing this?

Thanks!

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Michael Wagner 2019-11-15

Thanks for your quick reply!

I think I may have figured something out-- I just used the heatmap function. I imported protein names as a string array ("proteins") and created a numeric matrix of the expression data by copying and pasting from Excel ("cdata"). From there I created a cell array of the categorical conditions ("conditions"). I used this code:

h=heatmap(conditions, proteins, cdata)

I'm fairly pleased with the result, but I do think it would be better if instead of the colormap, marker size scaled to cdata would be a better visual for my results. I don't know where to start with that process, however.