CODEWITHSUNDEEP
statistics
Daniel H
Daniel H

Reputation: 10175

What's the correct term for "number of std deviations" away from a mean

I've computed the mean & variance of a set of values, and I want to pass along the value that represents the # of std deviations away from mean for each number in the set. Is there a better term for this, or should I just call it num_of_std_devs_from_mean ...

Upvotes: 3

Views: 1036

Answers (6)

Kevin Haines
Kevin Haines

Reputation: 2552

Deviation may be what you're after. Deviation is the distance between a data point and the mean.

Upvotes: 0

ckarras
ckarras

Reputation: 5026

Some suggestions here: Standard score (z-value, z-score, normal score)

but "sigma" or "stdev_distance" would probably be clearer

Upvotes: 9

mbowcock
mbowcock

Reputation: 11

I've always heard it as number of standard deviations

Upvotes: 0

Kevin Little
Kevin Little

Reputation: 12976

sigma is what you want, I think.

Upvotes: 4

etchasketch
etchasketch

Reputation: 626

The standard deviation is usually denoted with the letter σ (sigma). Personally, I think more people will understand what you mean if you do say number of standard deviations.

As for a variable name, as long as you comment the declaration you could shorten it to std_devs.

Upvotes: 4

neuroguy123
neuroguy123

Reputation: 1365

That is normalizing your values. You could just refer to it as the normalized value. Maybe norm_val would be more appropriate.

Upvotes: 1

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