How to insert bar markers in a line plot
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Hi,
I've been plotting a line graph of a cell's response to different chemicals administered at different times. The dataset is a 1470x1 double. I ran this code to generate a graph:
load(data)
t = linspace(0,length(data)*2, length(data)); % create a vector specifying the data to use for the x axis. i need to adjust the axis because the data was collected in a different timeframe
plot(t, data);

I want to be able to show the names of the compounds injected with text labels and I also want to have bars underneath the line plot that indicate when a stimulus was injected and for how long (i.e. at 1500 seconds Compound 8 was injected for 20 seconds). I drew a picture to illustrate my idea:

Does anyone know how I can make this happen? Thank you.
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