sir | SDN Internet Router , abbreviated SIR | Router library

I am trying to establish a method of estimating infectious disease parameters by comparing real epidemic curves with simulations of a stochastic SIR model. To construct the stochastic SIR model, I am using the deSolve package and instead of using fixed parameter values I would like to draw the parameter value used in the equations at each time point from a Poisson distribution centered on the original parameter values.

Using the parameter beta as an example, beta represents the average number of transmission events per capita and is the product of the average number of contacts and the probability that transmission occurs upon contact. Realistically, there is variation in the number of contacts a person will have and since transmission is also a probabilistic event there is variation surrounding this too. So even if the average transmission rate were to be 2.4 (for example), an individual can go on to infect 0, 1, 2 or 3 ... etc. people with varying probabilities.

I have tried to incorporate this into my code below using the rpois function and reassigning the parameters used in the equations to the outputs of the rpois.

I have run my code with the same initial values and parameters multiple times and all the curves are different indicating that SOMETHING "stochastic" is going on, but I am unsure whether the code is sampling using the rpois at each time point or just once at the beginning. I have only started coding very recently so do not have much experience.

I would be grateful if anyone more experienced than myself could verify what my code is ACTUALLY doing and whether it is sampling using rpois at each time point or not. If not I would be grateful for any suggestions for achieving this. Perhaps a loop is needed?

Edit: others have responded showing xslt as a better solution for the simple problem I have posted here. I have deleted my answer for now.

I've been through about a dozen StackOverflow posts trying to understand how to import an XML document that has namespaces, modify it, and then write it without changing the namespaces. I discovered a few things that weren't clear or had conflicting information. Having finally got it to work I want to record what I learned hoping it helps someone else equally confused. I will put the question here and the answer in a response.

The question: given the sample XML data in the Python docs how do I navigate the tree without having to explicitly include the name-space URIs in the xpaths for findall and write it back out with the namespace prefixes preserved. The example code in the doc does not give the full solution.

Here is the XML data:

I am trying to insert a new index after splitting a string but it produces no value. Can anyone help?

Sir, I tried to use Dynamic Alert Message in my pinescript as below. Info I was setting to received : Price, Volume, Date & Chart Link . If alert triggered, message will send to my telegram and easily to open the chart.

I tried in Forex. It's working & I received alerts complete with Chart Link ( please refers to attachment ).

But, when I try in KLSE / Malaysia Stock Market or other Stock market. Info I received message not complete. Chart link not working. ( please refer to attachments )

I hope someone can helps me to solve it.

This is part of my pinescript Code for Dynamic Alert Message as advised by TradingView last week.

I am absolutely befuddled at the moment. Kind madams, good sirs; please do assist!

This is what I am doing:

I have a WinForms application connected to a SQL database with a varbinary(max) column for storing pictures. In my parent form (form1), I have a DataGridView (dgv1). Double-clicking on any row will bring up a new form (form2), where I can edit the row data, and where there's also a PictureBox (pb1).

If I add a picture, and then go back and refresh the DataGridView, and try to open the same row, it'll give me this error message:

If I go into the database and set the value of the varbinary(max) column back to NULL (from < Binary data >), and try to open the same row again, it'll work fine.

Let me show you my code:

I am new in Unity using C#. I have this code:

Hello I am currently making a voice assistant and I want to terminate it but it isnt getting termintating and just getting repeated

I am trying to generate html to pdf in Node.js using html-pdf-node package. The page is working fine if I open the html file in the browser but when I generate it to pdf using html-pdf-node, the images and the css is not rendered in the pdf.

Here is my code:

template.html

I'm trying to recreate computation of a SIR model as described here, with extra midpoint calculations. But for some reason no values actually change during the Euler calculations.