aas_tamanho_amostra: Sample size for AAS: automatic formula selection (umbrella...

In sampleone: Survey Sampling Methods for Teaching and Practice

Sample size for AAS: automatic formula selection (umbrella function)

Description

Convenience "umbrella" function that accepts every input that might be relevant to determine an AAS sample size (population variance or standard deviation, expected proportion, population size, expected losses) and automatically dispatches to aas_tamanho_media() or aas_tamanho_proporcao() depending on parametro, silently ignoring whichever inputs are not needed for the chosen calculation.

Usage

aas_tamanho_amostra(
  parametro = c("media", "proporcao"),
  N = NULL,
  sigma2 = NULL,
  sigma = NULL,
  p = NULL,
  d,
  conf = 0.95,
  perda = 0,
  arredondar = c("cima", "proximo"),
  ...
)

Arguments

parametro	Either "media" or "proporcao": which population parameter the sample size should be computed for.
N	Optional population size.
sigma2	Population variance (used only when parametro = "media").
sigma	Population standard deviation (alternative to sigma2, used only when parametro = "media").
p	Expected proportion (used only when parametro = "proporcao").
d	Tolerable margin of error.
conf	Confidence level, default 0.95.
perda	Optional expected non-response/loss rate in ⁠[0, 1)⁠.
arredondar	Either "cima" (default) or "proximo" – see aas_tamanho_media().
...	Ignored. Any other variables from a broader problem statement (e.g. sample data, stratum information) may be passed here without causing an error.

Value

A sampling_result object, as produced by aas_tamanho_media() or aas_tamanho_proporcao().

Examples

aas_tamanho_amostra(parametro = "media", sigma = 7, d = 2)
aas_tamanho_amostra(parametro = "proporcao", p = 0.6, d = 0.03, N = 5000)

sampleone documentation built on Oct. 13, 2026, 5:07 p.m.