name: generate-statistical-tables
description: >
Generate publication-ready statistical tables using gt, kableExtra,
or flextable. Covers descriptive statistics, regression results,
ANOVA tables, correlation matrices, and APA formatting. Use when
creating descriptive statistics tables, formatting regression or
ANOVA output, building correlation matrices, producing APA-style
tables for academic papers, or generating tables for Quarto and
R Markdown documents.
license: MIT
allowed-tools: Read Write Edit Bash Grep Glob
metadata:
author: Philipp Thoss
version: "1.0"
domain: reporting
complexity: intermediate
language: R
tags: r, tables, gt, statistics, publication
locale: ja
source_locale: en
source_commit: 75ded7a1
fence_basis_commit: 75ded7a1
translator: claude
translation_date: "2026-03-17"
統計表の生成
Create publication-ready statistical tables for reports and manuscripts.
使用タイミング
- Creating descriptive statistics tables
- Formatting regression or ANOVA output
- Building correlation matrices
- Producing APA-style tables for academic papers
- Generating tables for Quarto/R Markdown documents
入力
- 必須: Statistical analysis results (model objects, summary data)
- 必須: Output format (HTML, PDF, Word)
- 任意: Style guide (APA, journal-specific)
- 任意: Table numbering scheme
手順
ステップ1: Choose Table Package
| Package | Best for | Formats |
|---|
gt | HTML, general-purpose | HTML, PDF, Word |
kableExtra | LaTeX/PDF documents | PDF, HTML |
flextable | Word documents | Word, PDF, HTML |
gtsummary | Clinical/statistical summaries | All via gt/flextable |
期待結果: A table package selected based on the output format and use case. The chosen package is installed and loadable.
失敗時: If the required package is not installed, run install.packages("gt") (or the appropriate package). For gtsummary, both gt and gtsummary must be installed.
ステップ2: Descriptive Statistics Table
library(gt)
descriptives <- data |>
group_by(group) |>
summarise(
n = n(),
M = mean(score, na.rm = TRUE),
SD = sd(score, na.rm = TRUE),
Min = min(score, na.rm = TRUE),
Max = max(score, na.rm = TRUE)
)
gt(descriptives) |>
tab_header(
title = "Table 1",
subtitle = "Descriptive Statistics by Group"
) |>
fmt_number(columns = c(M, SD), decimals = 2) |>
fmt_number(columns = c(Min, Max), decimals = 1) |>
cols_label(
group = "Group",
n = md("*n*"),
M = md("*M*"),
SD = md("*SD*")
)
期待結果: A gt table object with formatted means, SDs, and counts grouped by category. Column headers use proper statistical notation (italicized M, SD, n).
失敗時: If group_by() produces unexpected results, verify the grouping variable exists and has the expected levels. If fmt_number() throws an error, ensure the target columns contain numeric data.
ステップ3: Regression Results Table
model <- lm(outcome ~ predictor1 + predictor2 + predictor3, data = data)
library(gtsummary)
tbl_regression(model) |>
bold_p() |>
add_glance_source_note(
include = c(r.squared, adj.r.squared, nobs)
) |>
modify_header(label = "**Predictor**") |>
modify_caption("Table 2: Regression Results")
期待結果: A gtsummary regression table with bolded p-values, model fit statistics (R-squared, N) in a source note, and a descriptive caption.
失敗時: If tbl_regression() fails, verify the input is a model object (e.g., lm, glm). If add_glance_source_note() errors, check that broom can tidy the model: broom::glance(model).
ステップ4: Correlation Matrix
library(gt)
cor_matrix <- cor(data[, c("var1", "var2", "var3", "var4")],
use = "pairwise.complete.obs")
# Format lower triangle
cor_matrix[upper.tri(cor_matrix)] <- NA
as.data.frame(cor_matrix) |>
tibble::rownames_to_column("Variable") |>
gt() |>
fmt_number(decimals = 2) |>
sub_missing(missing_text = "") |>
tab_header(title = "Table 3", subtitle = "Correlation Matrix")
期待結果: A lower-triangle correlation matrix rendered as a gt table with blanked upper triangle, two decimal places, and a clear caption.
失敗時: If sub_missing() does not blank the upper triangle, verify that NA values were set correctly with cor_matrix[upper.tri(cor_matrix)] <- NA. If variables are non-numeric, cor() will fail; filter to numeric columns first.
ステップ5: ANOVA Table
aov_result <- aov(score ~ group * condition, data = data)
library(gtsummary)
tbl_anova <- broom::tidy(aov_result) |>
gt() |>
fmt_number(columns = c(sumsq, meansq, statistic), decimals = 2) |>
fmt_number(columns = p.value, decimals = 3) |>
cols_label(
term = "Source",
df = md("*df*"),
sumsq = md("*SS*"),
meansq = md("*MS*"),
statistic = md("*F*"),
p.value = md("*p*")
) |>
tab_header(title = "Table 4", subtitle = "ANOVA Results")
期待結果: A formatted ANOVA table with Source, df, SS, MS, F, and p columns. Interaction terms are clearly labeled and p-values are formatted to three decimal places.
失敗時: If broom::tidy(aov_result) produces unexpected columns, verify the model is an aov object. For Type III sums of squares, use car::Anova(model, type = 3) instead of base aov().
ステップ6: Save Tables
# Save as HTML
gtsave(my_table, "table1.html")
# Save as Word
gtsave(my_table, "table1.docx")
# Save as PNG image
gtsave(my_table, "table1.png")
# For LaTeX/PDF (kableExtra)
kableExtra::save_kable(kable_table, "table1.pdf")
期待結果: Table saved to the specified file format (HTML, Word, PNG, or PDF). The output file opens correctly in the appropriate application.
失敗時: If gtsave() fails for Word format, ensure the webshot2 package is installed. For PDF output via kableExtra, ensure a LaTeX distribution (TinyTeX or MiKTeX) is installed.
ステップ7: Embed in Quarto Document
```{r}
#| label: tbl-descriptives
#| tbl-cap: "Descriptive Statistics by Group"
gt(descriptives) |>
fmt_number(columns = c(M, SD), decimals = 2)
```
See @tbl-descriptives for summary statistics.
期待結果: The table renders inline in the Quarto document with a cross-referenceable label (@tbl-*) and a proper caption. The table adapts to the document's output format automatically.
失敗時: If the table does not render, verify the chunk label starts with tbl- for Quarto cross-referencing. If formatting is lost in PDF, switch from gt to kableExtra for LaTeX-based output.
バリデーション
よくある落とし穴
- gt in PDF: gt has limited PDF support. Use kableExtra for LaTeX-heavy documents.
- Rounding inconsistency: Always use
fmt_number() (gt) or format() rather than round() for display
- Missing values display: Configure with
sub_missing() in gt or options(knitr.kable.NA = "")
- Wide tables in PDF: Tables exceeding page width need
landscape() or font size reduction
- APA number formatting: No leading zero for values bounded by 1 (p-values, correlations): ".03" not "0.03"
関連スキル
format-apa-report - tables within APA manuscripts
create-quarto-report - embedding tables in reports
build-parameterized-report - tables that adapt to parameters