Recent content by vabsie

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    B Convince Covid-19 Vaccine Efficiency Through Statistics

    I have been trying to convince someone that it is wrong to compare the death percentages of two different populations (percentage of death of Covid-19 cases per category: vaccinated vs unvaccinated) in an uncontrolled setting (i.e. real-world data), and conclude that the Covid-19 vaccine does...
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    Python Adding noise and solving stochastic ODEs in Python

    Really good recommendations! I'll try these and post some updates. Thank you very much for giving time into this. It's been a very fruitful discussion. You have no idea how stuck I was. Even created an account on here to post this. hehe :oldbiggrin:
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    Python Adding noise and solving stochastic ODEs in Python

    Scenario 1 Here's what it looks like if I add a continuous source of ITMs without noise. and with noise: So far so good. Scenario 2 When I add a source of ITMs for a period of say 3 hours, here's what it looks like without noise. Makes sense as the concentration of ITMs go down immediately...
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    Python Adding noise and solving stochastic ODEs in Python

    The ODE solver is SUPER A-OK when noise is 0. The problem happens when I add noise :H Sometimes, it gives out errors, sometimes it's ok. Especially in one of my experiments where I add ITMs for a period of 3 hours ONLY (for example). So you'd imagine that after this period of 3 hours, ITMs just...
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    Python Adding noise and solving stochastic ODEs in Python

    Thank you very much! This is the approach that I am doing at the moment. I am not using the SDE solver as even with a vanilla implementation (setting noise to 0, for sanity check), it is still spewing out errors, probably because of the complexity/size of my system. I even tried doing the manual...
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    Python Adding noise and solving stochastic ODEs in Python

    Go ahead! I did not want to miss out on the details, which could be important. That huge system is actually a model of the immune system. :oldbiggrin: But you're right! Trimming it down to a toy model won't hurt. You are absolutely right! To make it comprehensible, ITM here means Inflammation...
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    Python Adding noise and solving stochastic ODEs in Python

    The Coupled ODE Model Below are my coupled differential equations, where the only variable I try to meddle with is the ITMblood. The motivation here is if I try to increase ITMblood (in the next section I will show how I do it), at some concentration of ITMblood (most likely a very huge one) ...
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