How can one draw a plot of this table?

Suppose I have table T

date             visiors    sales  
1/1/2021       3           100
1/2/2021       5           120

I want to draw a plot of "visitors" and "sales" with date on the x axis. How can one do this?

Answer 1

[Dave B]

If you want a simple line plot, you could do

plot(T.date, T.visitors)
hold on
plot(T.date, T.sales)

or

plot(T.date, [T.visitors T.sales])

or even:

plot(T.date, T.visitors, T.date, T.sales)

For a bar chart you might do:

bar(T.date, [T.visitors T.sales])

Lot's more options for different visualizations can be found here

[Peter Perkins]

If you have timestamps, you probably should be using a timetable. In that case, you can just call stackedplot on it.

If you can't use a timetable, you can still use stackedplot, you just have to pass in the times explicitly.

[alpedhuez]

But can one stackedplot as multiple graphs in one x-y?

[Dave B]

You can do this with:

stackedplot(T, {{'visitors' 'sales'}}, 'XVariable', 'Date')

The {{ might be confusing: you can think of this as: each element of the outer cell is an axes, each element of the inner cell is a line in that axes.

This definitely makes more sense when you have multiple plots to 'stack'.