Is there any heartbeat like function?

Question

I'm looking for a function, where the result is something like this:

I tried to figure it out myself, but I have no idea how to manage it. f(x) = ...

Thanks in advance,

The heart beat function for a dead guy is defined by $f(x)=0.$ — Joseph Van Name, Jan 19 '13 at 00:02
Hodgkin-Huxley gives a system of differential equations whose solutions look pretty close. As in the normal pattern is a limit cycle. — AHusain, Apr 25 '16 at 21:46
Here's a fun little function if you're just going for the aesthetic: sin(x)^63 * sin(x+1.5)*8 — Leftover Salad, Oct 05 '18 at 09:14
The derivative of (cos(x))^x looks a little bit like that for x > 0 (in my opinion) — Alex, Nov 18 '21 at 21:30

score 10 · Accepted Answer · answered Jan 18 '13 at 16:52

A silly answer would be "fit a spline to your curve", but the meaningful answer tries to extract information on the condition of the heart from the characteristic features of the electrocardiogram; there is an extensive literature on this problem, see for example:

Functional Data Analytic Approach of Modeling ECG T-wave Shape to Measure Cardiovascular Behavior.

Is there any heartbeat like function?

1 Answers1