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Last seen: Sep 22, 2026
Here is what excel says 'X Variable 1' is ambient squared 'X Variable 2' is ambient 95% confidence on the intercept is 3.59-3.8, so basically ...
That's quite a big range if its right. What level of confidence is this? (incidentally I hadn't previously heard of R, but I think Ive found out how...
I think its sadly inevitable that any conclusion is more complex that yes or no. I was (and still am) hoping that, with a combination of experiment, ...
As I'm sure you know the mean of a sample (which is what we are looking at) of a normally distributed population may differ from the population mean. ...
@cathoderay Prima facie this looks very interesting and a good fit once changes in the system are excluded, as you have done. Can you tell us what t...
Thinking more about the above, its all a matter of degree. You choose to compensate for OAT by using a model, but you choose not to compensate for IA...
@derek-m @cathoderay until we get to the bottom of this and either explain it or conclude that i have goofed in my analysis I really don't think its w...
@derek-m @cathoderay until we get to the bottom of this and either explain it or conclude that i have goofed in my analysis I really don't think its w...
I quite often get database errors recently and have taken to copying text to the clipboard before pressing 'add reply' to ensure I dont have to retype...
Thanks for the responses. I don't think it has a fatal flaw in principle, although omitting to take into account IAT means that you will need...
@cathoderay From your Obs vs Exp worksheet here is a pivot of actual and expected for the whole of the heating season (I omitted the days when the hea...
Thanks I agree that the less processing the better. I used noon to noon data only because that's what you had previously quoted in your posts. Its...
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Degrees of Separation
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RE: Cooling using an air to water heat pump
@jamespa thanks. im not used to being on a forum where...
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@jamespa Thanks. this is very helpful. It's actually t...
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RE: Passiv Smart Thermostat - Help & Forum Support
Is there any expected time frame for an update to be ab...
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RE: Why are ASHP installs so expensive?
Posted by: @springswood I confess to becoming a litt...
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This post aims to analyse the economics of installing, ...
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RE: Cooling with air to water heat pumps
@editor does that mean you have to have two separate ex...
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
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