Re: [Scilab-users] Covid19 model

2020-04-30 Thread Claus Futtrup
Hi Stéphane Thank you for showing me how to work ODE. P.S. about Corona modeling, the model by Risbo is nice in that you can implement a lockdown of some sort. It's a simple one-step lockdown, where you have to tune the R-value ... in reality each geographic area is different, related to how

Re: [Scilab-users] Fwd: Re: Corona modelling

2020-04-30 Thread Stéphane Mottelet
Hi, My experience with the SIR model (not SEIR) is that the estimated parameters are very sensitive to the initial condition of the Infected pool. Hence, this initial condition should be also considered as a parameter to be identified. However, the main problem (at least with France data) is

[Scilab-users] Fwd: Re: Corona modelling

2020-04-30 Thread Chin Luh Tan
Just notice that this email was stuck due to the image attached was too large, and notice the new post by Claus with the SEIR model from Matlab, perhaps Scilabers could make the model more realistic together. CL Forwarded message From: Chin Luh Tan

Re: [Scilab-users] Covid19 model

2020-04-30 Thread Stéphane Mottelet
Hi Clauss, Just modify the following lines : t1 = 0:0.1:60; y1 = ode(y0, 0, t1, odefun); // [t1,y1] = ode45(@odefun,[0 60],y0); // run 1st scernario idx=[3:6]; scf(); a = gca(); plot(Begin+t1,y1(idx,:),'-'); // semilogy(Begin+t1,y1(:,idx),'-','LineWidth',3) And you will be fine.

[Scilab-users] Covid19 model

2020-04-30 Thread Claus Futtrup
Hi Scilabers On 17. April I sent an email, but I think it wasn't released to the mailing list, I only find it online here: http://mailinglists.scilab.org/Scilab-users-Covid19-model-td4040626.html Here's the email again (without attachment, see above link if you'd like to view the

Re: [Scilab-users] Really headless figure generation in scilab

2020-04-30 Thread Antoine Monmayrant
Hello Stéphane, Sadly, after some testings, it doe not seem to work for me on the machine I connect to with ssh (see transcript below). The connection is done with bare 'ssh' and not 'ssh -X' (contrary to what I wrote in a previous email) and your combination of env variables still results

Re: [Scilab-users] Really headless figure generation in scilab

2020-04-30 Thread Stéphane Mottelet
Hi, Le 30/04/2020 à 09:22, Clément David a écrit : Hello, Thanks for sharing the info Stéphane, it is documented on the scilab binary help page, on https://antispam.utc.fr/proxy/2/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/help.scilab.org/docs/6.1.0/en_US/scilab.html . However, this might not be

Re: [Scilab-users] Really headless figure generation in scilab

2020-04-30 Thread Clément David
Hello, Thanks for sharing the info Stéphane, it is documented on the scilab binary help page, on https://help.scilab.org/docs/6.1.0/en_US/scilab.html . However, this might not be clear enough. Maybe adding your usage as an example can help? Thanks, -- Clément > -Original Message- >