The surprisal value (Greenland 2019) is the pvalue expressed in
terms of how many consecutive heads would have to be thrown on a fair coin
in a single attempt to achieve the same probability.

`svalue(x, threshold = 0, na_rm = FALSE)`

## Arguments

- x
A numeric object of MCMC values.

- threshold
A number of the threshold value.

- na_rm
A flag specifying whether to remove missing values.

## Value

A non-negative number.

## References

Greenland, S. 2019. Valid P -Values Behave Exactly as They Should:
Some Misleading Criticisms of P -Values and Their Resolution With S -Values.
The American Statistician 73(sup1): 106–114.
doi:10.1080/00031305.2018.1529625
.

## See also

Other summary:
`kurtosis()`

,
`lower()`

,
`pvalue()`

,
`pzeros()`

,
`skewness()`

,
`upper()`

,
`variance()`

,
`xtr_mean()`

,
`xtr_median()`

,
`xtr_sd()`

,
`zeros()`

,
`zscore()`