sig_test_y2: Significance testing

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Significance testing

Description

Akin to crosstabs, run significance testing on a grouped frequencies

Usage

sig_test_y2(
  frequencies,
  dataset,
  banner_var,
  wt = NULL,
  layout = c("tall", "wide")
)

Arguments

frequencies	A grouped frequencies table created using the freqs() function in y2clerk
dataset	The original data frame that the frequencies table came from
banner_var	This will be the banner variables for cross tabs. Must be the same as the grouping variable from the freqs() function.
wt	The weight variable used in the frequencies function, if applicable
layout	(default: 'tall') 'tall' formats the output to look like a basic grouped freqs table. 'wide' formats the output to look like the result from Q-formatted cross tabs

Value

A table that matches the output of cross tabs, showing significance differences between different groups for any input variables stats, cross tabs. Column comparison symbols: a, b, c... (p <= 0.05), A, B, C... (p <= 0.001); No symbol: not significant at at least (p <= 0.05)

Examples

# Example Data

df <- data.frame(
  V1 = c(
    rep('Agree', 100),
    rep('Neither', 100),
    rep('Disagree', 100),
    rep('Agree', 200),
    rep('Neither', 50),
    rep('Disagree', 50),
    rep('Agree', 50),
    rep('Neither', 125),
    rep('Disagree', 125)
  ),
  group = c(
    rep('Group 1', 300),
    rep('Group 2', 300),
    rep('Group 3', 300)
  ),
  weight = c(
    rnorm(900, 1, 0.25)
  )
)

# Frequencies

frequencies <- df %>%
  dplyr::group_by(group) %>%
  freqs(V1)

# Frequencies with significance tests

tested_freqs <- frequencies %>%
  sig_test_y2(dataset = df,
              banner_var = group)

# Tested frequencies in crosstab format

tested_freqs <- frequencies %>%
  sig_test_y2(dataset = df,
              banner_var = group,
              layout = 'wide')

# Weighted tested frequencies

tested_freqs <- df %>%
  dplyr::group_by(group) %>%
  freqs(V1,
        wt = weight) %>%
  sig_test_y2(dataset = df,
              banner_var = group,
              wt = weight)

# Weighted tested frequencies in crosstab format

tested_freqs <- df %>%
  dplyr::group_by(group) %>%
  freqs(V1,
        wt = weight) %>%
  sig_test_y2(dataset = df,
              banner_var = group,
              wt = weight,
              layout = 'wide')

y2analytics/y2clerk documentation built on Feb. 28, 2025, 5:47 p.m.