Orang Utan
Psychick Worrier Ov Geyoor
Can someone please explain what the R is? (as if you are talking to a five year old)
PM Boris Johnson - monster thread for a monster twat
- Thread starter ItWillNeverWork
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Steel Icarus
we move
How many people on average each person with Covid is infecting?
andysays
Love and solidarity
The R number is the average number of people each infected person passes the infection on to.
If it's greater than 1, the number of new cases increases, if it's less than 1 the number decreases.
(now run along and play, the grown ups are a bit busy right now
)
Ax^
Silly Rabbit
Orang Utan
Psychick Worrier Ov Geyoor
existentialist
Tired and unemotional
He had nothing to add. As per.
Am surprised he didn't say anything about ending the furlough scheme.It seems that only those who are working from home (and are therefore on the employer's payroll) now have an excuse not to go into work.If that is what is meant the furlough scheme is surely a dead-letter?
Ax^
Silly Rabbit
They have a update on that on Wednesday
few things have leaked mind
most its going to be dropped to about 60 % of Wages
and if you cannot live with that
Best to get another job
whilst no on is doing interviews or hiring as we expect a economic crisis
Orang Utan
Psychick Worrier Ov Geyoor
2hats
Dust.
No it's not.
Sorry it should have read as the infection reproduction rate.
2hats
Dust.
The reproduction number influences rate of transmission but it is not a rate.
elbows
Well-Known Member
Yeah, I may sloppily have used the word rate when talking about it in the past, but when you think of r words to go with this R, think reproduction or ratio, not rate. A related rate would be something like the doubling time. The doubling time does get a look in when the likes of Whitty speak in detail, but R has become so much more famous, and hopefully the halving time will be more relevant than doubling time from now on.
19force8
For the avoidance of faith
Erm, yes it is.
Sort of:
As someone who has O-level maths I can confirm we are now on Alert Level 183,258.763
or thereabouts
equationgirl
Respect my existence or expect my resistance
That equation makes no sense. The number of infections term will surely be much greater than the R term and therefore dominate.
Fucks sake, which genius came up with that?
Fucks sake, which genius came up with that?
2hats
Dust.
Let's go back to basics...
Tell me - what are the units of R? (feel free to use either SI or imperial)
equationgirl
Respect my existence or expect my resistance
Does R have units? Or is it anumber per X of population? A rate implies per unit of time, which could be per day, per week etc
In which case the number of infections is not absolute, that should also be per X of population.or per the same unit of time.
So the alert level is more of an alert rate.
two sheds
Least noticed poster 2007
I think 19force8 was quoting Johnson (never a good idea 
).
I've been trying to work out what would be an actual formula and replacing the plus with a multiply or exponent or negative exponent and something multiplied by the number of infections (presumably for the last week, perhaps related to the hospital capacity) and still can't see how it would make any sense.
). I've been trying to work out what would be an actual formula and replacing the plus with a multiply or exponent or negative exponent and something multiplied by the number of infections (presumably for the last week, perhaps related to the hospital capacity) and still can't see how it would make any sense.
equationgirl
Respect my existence or expect my resistance
It doesn't make sense. Alert level implies an absolute number but the other components are per unit of time. It's not dimensionally correct as the units don't appear to be balanced.I think 19force8 was quoting Johnson (never a good idea
I've been trying to work out what would be an actual formula and replacing the plus with a multiply or exponent or negative exponent and something multiplied by the number of infections (presumably for the last week, perhaps related to the hospital capacity) and still can't see how it would make any sense.
Government in doesn't understand maths shocker.
brogdale
Coming to terms with late onset Anarchism
Erm, yes it is.
Sort of:
As someone who has O-level maths I can confirm we are now on Alert Level 183,258.763
or thereabouts
The extent of my Covid maths..
2hats
Dust.
R is dimensionless. Ergo, it's not a rate on that basis alone. It's not a rate anyway. It was originally coined as 'basic case reproduction rate' in the epidemiological terminology in the 1950s when introduced by MacDonald but the term is avoided in modern literature as it introduces confusion: it is a ratio and does not itself tell you anything about the spread over time.
equationgirl
Respect my existence or expect my resistance
When is a rate not a rate? When it's used in an equation proposed by the government...
equationgirl
Respect my existence or expect my resistance
I would dearly love to see the derivation of this equation.
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