ssampcalc function

Determines sample size by strata using proportional allocation

ssampcalc(df, n, strata, over = 0)

Arguments

• df: object containing sampling data frame (e.g. data)
• n: sample size (integer) or object containing sample size
• strata: variable in sampling data frame by which to stratify (e.g. region)
• over: (optional) desired oversampling proportion (defaults to 0; takes value between 0 and 1 as input)

Returns

Returns proportional sample size per strata (rounded up to nearest integer)

Examples

ssampcalc(df=albania, n=544, strata=qarku, over=0.05)

size <- rsampcalc(nrow(albania), 3, 95, 0.5)
ssampcalc(albania, size, qarku)

References

[1] Sampling Design & Analysis, S. Lohr, 1999, 4.4