# Measuring degrees of randomness

#### walfin

##### Democrazy

Supposedly it involves measure theory and algorithmic analysis (the maths type, not the computing type), neither of which I understand.

#### ProxyAmenRa

##### Here to bring back the love!
You mean variance, right? The simplest measure.

var=sum[(x-u)^2]*(1/n)

x - a data point
u - mean
n - number of data points

Autocorrelation and partial autocorrelation can be used to find whether or not their is a repeating pattern in the data.

#### walfin

##### Democrazy
You mean variance, right? The simplest measure.

var=sum[(x-u)^2]*(1/n)

x - a data point
u - mean
n - number of data points

Autocorrelation and partial autocorrelation can be used to find whether or not their is a repeating pattern in the data.

No, I know what is variance. This randomness thing has nothing to do with statistics.

Apparently it's something to do with whether a series can be compressed further or no.

#### ProxyAmenRa

##### Here to bring back the love!
I know not of what you're talking about. Better ask a someone like @BigApplePi.

#### Reluctantly

##### Resident disMember
...how can it have nothing to do with statistics? That's exactly what statistics is for...

#### walfin

##### Democrazy
...how can it have nothing to do with statistics? That's exactly what statistics is for...