converting rounded signals (digital to analog)

Question

I have a lot of temperature meassurments which are sadly rounded.
They look something like this:
28.0
28.0
27.0
27.0
26.0

my question is, is there a way to get more information out of the data?
The meassurments are equally spaced and all rounded, so I thought of a digital-analog converter could get some more precision out of the meassurments, but I did not find anything that could help me..
any help would be much appriciated

Answer 1

Anton Böhler Maybe I do not understand the question and I'm neither good in python nor in other languages, but it is just impossible to get more than you get as an input. If you get 28.0... it's 28.0 only. You can count it, divide, multiply, convert in many ways etc. but you do not get e.g. 28.464357 from it...

Answer 2

If you want more precision you can either try to get your hands on the raw data that hasn't been rounded (assuming that such data does exist) or to repeat the measurements and take more precise measurements. But there is probably a reason why the data is rounded, e.g. there may be no need for more precise measurements, or the thermometer may not be precise enough.
But there is of course no way to make the rounded values more precise after the fact.

Answer 3

One should emphasize that temperature measurements are one of the most inaccurate methods at all, compared to other physical quantities.

Typical measuring accuracies vary from 0.5°C to 1.5°C, depending on the thermometer used. It is important to realize, that these values have nothing to do with the display accuracy (no matter whether digital or analog) of the thermometer. There may be a display accuracy of 0.1°C or even 0.01°C, but if the measuring accuracy is lower (this is usually the case) you can‘t rely on the read value.

I have seen high precision resistance temperature detectors (RTD) in research labs for specific applications. These devices may have a measurement accuracy of 0.05°C or better. But this is not for general purpose measurements.

What I want to say in conclusion is: A measurement accuracy of 1°C is indeed sufficient in most cases.