*“From R to your manuscript”*

**report**’s primary goal is to bridge the gap between R’s output and the formatted results contained in your manuscript. It automatically produces reports of models and dataframes according to **best practices** guidelines (*e.g.,* APA’s style), ensuring **standardization** and **quality** in results reporting.

```
library(report)
model <- lm(Sepal.Length ~ Species, data = iris)
report(model)
# We fitted a linear model (estimated using OLS) to predict Sepal.Length with Species (formula: Sepal.Length ~ Species). The model explains a statistically significant and substantial proportion of variance (R2 = 0.62, F(2, 147) = 119.26, p < .001, adj. R2 = 0.61). The model's intercept, corresponding to Species = setosa, is at 5.01 (95% CI [4.86, 5.15], t(147) = 68.76, p < .001). Within this model:
#
# - The effect of Species [versicolor] is statistically significant and positive (beta = 0.93, 95% CI [0.73, 1.13], t(147) = 9.03, p < .001; Std. beta = 1.12, 95% CI [0.88, 1.37])
# - The effect of Species [virginica] is statistically significant and positive (beta = 1.58, 95% CI [1.38, 1.79], t(147) = 15.37, p < .001; Std. beta = 1.91, 95% CI [1.66, 2.16])
#
# Standardized parameters were obtained by fitting the model on a standardized version of the dataset.
```

The package documentation can be found **here**. Check-out these tutorials:

** report is a young package in need of affection**. You can easily be a part of the developing community of this open-source software and improve science! Don’t be shy, try to code and submit a pull request (See the contributing guide). Even if it’s not perfect, we will help you make it great!

The package is available on `CRAN`

and can be downloaded by running:

`install.packages("report")`

If you would instead like to experiment with the development version, you can download it from `GitHub`

:

```
install.packages("remotes")
remotes::install_github("easystats/report") # You only need to do that once
```

Load the package every time you start R

The `report`

package works in a two step fashion. First, you create a `report`

object with the `report()`

function. Then, this report object can be displayed either textually (the default output) or as a table, using `as.data.frame()`

. Moreover, you can also access a more digest and compact version of the report using `summary()`

on the report object.

The `report()`

function works on a variety of models, as well as other objects such as dataframes:

`report(iris)`

```
# The data contains 150 observations of the following 5 variables:
# - Sepal.Length: n = 150, Mean = 5.84, SD = 0.83, Median = 5.80, MAD = 1.04,
# range: [4.30, 7.90], Skewness = 0.31, Kurtosis = -0.55, 0% missing
# - Sepal.Width: n = 150, Mean = 3.06, SD = 0.44, Median = 3.00, MAD = 0.44,
# range: [2, 4.40], Skewness = 0.32, Kurtosis = 0.23, 0% missing
# - Petal.Length: n = 150, Mean = 3.76, SD = 1.77, Median = 4.35, MAD = 1.85,
# range: [1, 6.90], Skewness = -0.27, Kurtosis = -1.40, 0% missing
# - Petal.Width: n = 150, Mean = 1.20, SD = 0.76, Median = 1.30, MAD = 1.04,
# range: [0.10, 2.50], Skewness = -0.10, Kurtosis = -1.34, 0% missing
# - Species: 3 levels, namely setosa (n = 50, 33.33%), versicolor (n = 50,
# 33.33%) and virginica (n = 50, 33.33%)
```

These reports nicely work within the *tidyverse* workflow:

```
library(dplyr)
iris %>%
select(-starts_with("Sepal")) %>%
group_by(Species) %>%
report() %>%
summary()
```

```
# The data contains 150 observations, grouped by Species, of the following 3
# variables:
#
# - setosa (n = 50):
# - Petal.Length: Mean = 1.46, SD = 0.17, range: [1, 1.90]
# - Petal.Width: Mean = 0.25, SD = 0.11, range: [0.10, 0.60]
#
# - versicolor (n = 50):
# - Petal.Length: Mean = 4.26, SD = 0.47, range: [3, 5.10]
# - Petal.Width: Mean = 1.33, SD = 0.20, range: [1, 1.80]
#
# - virginica (n = 50):
# - Petal.Length: Mean = 5.55, SD = 0.55, range: [4.50, 6.90]
# - Petal.Width: Mean = 2.03, SD = 0.27, range: [1.40, 2.50]
```

Reports can be used to automatically format tests like *t*-tests or correlations.

```
# Effect sizes were labelled following Cohen's (1988) recommendations.
#
# The Welch Two Sample t-test testing the difference of mtcars$mpg by mtcars$am
# (mean in group 0 = 17.15, mean in group 1 = 24.39) suggests that the effect is
# positive, statistically significant, and large (difference = 7.24, 95% CI
# [-11.28, -3.21], t(18.33) = -3.77, p = 0.001; Cohen's d = -1.41, 95% CI [-2.26,
# -0.53])
```

As mentioned, you can also create tables with the `as.data.frame()`

functions, like for example with this correlation test:

```
cor.test(iris$Sepal.Length, iris$Sepal.Width) %>%
report() %>%
as.data.frame()
# Parameter1 | Parameter2 | r | 95% CI | t(148) | p | Method | Alternative
# ----------------------------------------------------------------------------------------------------------------------------------
# iris$Sepal.Length | iris$Sepal.Width | -0.12 | [-0.27, 0.04] | -1.44 | 0.152 | Pearson's product-moment correlation | two.sided
```

This works great with ANOVAs, as it includes **effect sizes** and their interpretation.

Reports are also compatible with GLMs, such as this **logistic regression**:

```
# We fitted a logistic model (estimated using ML) to predict vs with mpg and drat
# (formula: vs ~ mpg * drat). The model's explanatory power is substantial
# (Tjur's R2 = 0.51). The model's intercept, corresponding to mpg = 0 and drat =
# 0, is at -33.43 (95% CI [-77.90, 3.25], p = 0.083). Within this model:
#
# - The effect of mpg is statistically non-significant and positive (beta = 1.79,
# 95% CI [-0.10, 4.05], p = 0.066; Std. beta = 3.63, 95% CI [1.36, 7.50])
# - The effect of drat is statistically non-significant and positive (beta =
# 5.96, 95% CI [-3.75, 16.26], p = 0.205; Std. beta = -0.36, 95% CI [-1.96,
# 0.98])
# - The interaction effect of drat on mpg is statistically non-significant and
# negative (beta = -0.33, 95% CI [-0.83, 0.15], p = 0.141; Std. beta = -1.07, 95%
# CI [-2.66, 0.48])
#
# Standardized parameters were obtained by fitting the model on a standardized
# version of the dataset. 95% Confidence Intervals (CIs) and p-values were
# computed using
```

Mixed models (coming from example from the `lme4`

package), which popularity and usage is exploding, can also be reported as it should:

```
library(lme4)
model <- lme4::lmer(Sepal.Length ~ Petal.Length + (1 | Species), data = iris)
report(model)
```

```
# We fitted a linear mixed model (estimated using REML and nloptwrap optimizer)
# to predict Sepal.Length with Petal.Length (formula: Sepal.Length ~
# Petal.Length). The model included Species as random effect (formula: ~1 |
# Species). The model's total explanatory power is substantial (conditional R2 =
# 0.97) and the part related to the fixed effects alone (marginal R2) is of 0.66.
# The model's intercept, corresponding to Petal.Length = 0, is at 2.50 (95% CI
# [1.20, 3.81], t(146) = 3.75, p < .001). Within this model:
#
# - The effect of Petal Length is statistically significant and positive (beta =
# 0.89, 95% CI [0.76, 1.01], t(146) = 13.93, p < .001; Std. beta = 1.89, 95% CI
# [1.63, 2.16])
#
# Standardized parameters were obtained by fitting the model on a standardized
# version of the dataset. 95% Confidence Intervals (CIs) and p-values were
# computed using the Wald approximation.
```

Bayesian models can also be reported using the new **SEXIT** framework, that combines clarity, precision and usefulness.

```
# We fitted a Bayesian linear model (estimated using MCMC sampling with 4 chains
# of 1000 iterations and a warmup of 500) to predict mpg with qsec and wt
# (formula: mpg ~ qsec + wt). Priors over parameters were set as normal (mean =
# 0.00, SD = 8.43) and normal (mean = 0.00, SD = 15.40) distributions. The
# model's explanatory power is substantial (R2 = 0.81, 89% CI [0.73, 0.89], adj.
# R2 = 0.78). The model's intercept, corresponding to qsec = 0 and wt = 0, is at
# 19.43 (95% CI [9.20, 30.91]). Within this model:
#
# - The effect of qsec (Median = 0.94, 95% CI [0.42, 1.50]) has a 100.00%
# probability of being positive (> 0), 99.10% of being significant (> 0.30), and
# 0.10% of being large (> 1.81). The estimation successfully converged (Rhat =
# 1.001) and the indices are reliable (ESS = 2126)
# - The effect of wt (Median = -5.04, 95% CI [-6.04, -3.92]) has a 100.00%
# probability of being negative (< 0), 100.00% of being significant (< -0.30),
# and 100.00% of being large (< -1.81). The estimation successfully converged
# (Rhat = 1.000) and the indices are reliable (ESS = 1985)
#
# Following the Sequential Effect eXistence and sIgnificance Testing (SEXIT)
# framework, we report the median of the posterior distribution and its 95% CI
# (Highest Density Interval), along the probability of direction (pd), the
# probability of significance and the probability of being large. The thresholds
# beyond which the effect is considered as significant (i.e., non-negligible) and
# large are |0.30| and |1.81| (corresponding respectively to 0.05 and 0.30 of the
# outcome's SD). Convergence and stability of the Bayesian sampling has been
# assessed using R-hat, which should be below 1.01 (Vehtari et al., 2019), and
# Effective Sample Size (ESS), which should be greater than 1000 (Burkner, 2017).
```

One can, for complex reports, directly access the pieces of the reports:

```
model <- lm(Sepal.Length ~ Species, data = iris)
report_model(model)
report_performance(model)
report_statistics(model)
```

```
# linear model (estimated using OLS) to predict Sepal.Length with Species (formula: Sepal.Length ~ Species)
# The model explains a statistically significant and substantial proportion of variance (R2 = 0.62, F(2, 147) = 119.26, p < .001, adj. R2 = 0.61)
# beta = 5.01, 95% CI [4.86, 5.15], t(147) = 68.76, p < .001; Std. beta = -1.01, 95% CI [-1.18, -0.84]
# beta = 0.93, 95% CI [0.73, 1.13], t(147) = 9.03, p < .001; Std. beta = 1.12, 95% CI [0.88, 1.37]
# beta = 1.58, 95% CI [1.38, 1.79], t(147) = 15.37, p < .001; Std. beta = 1.91, 95% CI [1.66, 2.16]
```

This can be useful to complete the **Participants** paragraph of your manuscript.

```
data <- data.frame(
"Age" = c(22, 23, 54, 21),
"Sex" = c("F", "F", "M", "M")
)
paste(
report_participants(data, spell_n = TRUE),
"were recruited in the study by means of torture and coercion."
)
```

Report can also help you create sample description table (also referred to as **Table 1**).

Variable | setosa (n=50) | versicolor (n=50) | virginica (n=50) | Total |
---|---|---|---|---|

Mean Sepal.Length (SD) | 5.01 (0.35) | 5.94 (0.52) | 6.59 (0.64) | 5.84 (0.83) |

Mean Sepal.Width (SD) | 3.43 (0.38) | 2.77 (0.31) | 2.97 (0.32) | 3.06 (0.44) |

Mean Petal.Length (SD) | 1.46 (0.17) | 4.26 (0.47) | 5.55 (0.55) | 3.76 (1.77) |

Mean Petal.Width (SD) | 0.25 (0.11) | 1.33 (0.20) | 2.03 (0.27) | 1.20 (0.76) |

Finally, **report** includes some functions to help you write the data analysis paragraph about the tools used.

```
# Analyses were conducted using the R Statistical language (version 4.1.0; R Core
# Team, 2021) on macOS Mojave 10.14.6, using the packages Rcpp (version 1.0.6;
# Dirk Eddelbuettel and Romain Francois, 2011), Matrix (version 1.3.3; Douglas
# Bates and Martin Maechler, 2021), lme4 (version 1.1.27; Douglas Bates et al.,
# 2015), rstanarm (version 2.21.1; Goodrich B et al., 2020), dplyr (version
# 1.0.6; Hadley Wickham et al., 2021) and report (version 0.3.5; Makowski et al.,
# 2020).
#
# References
# ----------
# - Dirk Eddelbuettel and Romain Francois (2011). Rcpp: Seamless R and C++
# Integration. Journal of Statistical Software, 40(8), 1-18. URL
# https://www.jstatsoft.org/v40/i08/.
# - Douglas Bates and Martin Maechler (2021). Matrix: Sparse and Dense Matrix
# Classes and Methods. R package version 1.3-3.
# https://CRAN.R-project.org/package=Matrix
# - Douglas Bates, Martin Maechler, Ben Bolker, Steve Walker (2015). Fitting
# Linear Mixed-Effects Models Using lme4. Journal of Statistical Software, 67(1),
# 1-48. doi:10.18637/jss.v067.i01.
# - Goodrich B, Gabry J, Ali I & Brilleman S. (2020). rstanarm: Bayesian applied
# regression modeling via Stan. R package version 2.21.1
# https://mc-stan.org/rstanarm.
# - Hadley Wickham, Romain François, Lionel Henry and Kirill Müller (2021).
# dplyr: A Grammar of Data Manipulation. R package version 1.0.6.
# https://CRAN.R-project.org/package=dplyr
# - Makowski, D., Ben-Shachar, M.S., Patil, I. & Lüdecke, D. (2020). Automated
# Results Reporting as a Practical Tool to Improve Reproducibility and
# Methodological Best Practices Adoption. CRAN. Available from
# https://github.com/easystats/report. doi: .
# - R Core Team (2021). R: A language and environment for statistical computing.
# R Foundation for Statistical Computing, Vienna, Austria. URL
# https://www.R-project.org/.
```

If you like it, you can put a *star* on this repo, and cite the package as follows:

```
citation("report")
To cite in publications use:
Makowski, D., Ben-Shachar, M.S., Patil, I. & Lüdecke, D. (2020).
Automated Results Reporting as a Practical Tool to Improve
Reproducibility and Methodological Best Practices Adoption. CRAN.
Available from https://github.com/easystats/report. doi: .
A BibTeX entry for LaTeX users is
@Article{,
title = {Automated Results Reporting as a Practical Tool to Improve Reproducibility and Methodological Best Practices Adoption},
author = {Dominique Makowski and Mattan S. Ben-Shachar and Indrajeet Patil and Daniel Lüdecke},
year = {2021},
journal = {CRAN},
url = {https://github.com/easystats/report},
}
```