robvis

A package to quickly visualise risk-of-bias assessment results

https://github.com/mcguinlu/robvis

Keywords

Repository

A package to quickly visualise risk-of-bias assessment results

README.Rmd

---
output: github_document
---



```{r setup, include = FALSE}
knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>",
  fig.path = "man/figures/README-", 
  out.width = "90%",
  fig.width= 12,
  fig.height=3)

fig_count <- 1
```
# robvis 


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[![DOI](https://img.shields.io/static/v1.svg?label=Publication&message=10.1002/jrsm.1411&color=informational)](https://doi.org/10.1002/jrsm.1411)
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**UPDATE**: `robvis` now exists as a [web-app](https://mcguinlu.shinyapps.io/robvis), aimed at those who are not familiar with R or who want to explore the package's functionality before installing it locally.


## Description
```{r include = FALSE}
library(robvis)
```

The `robvis` (Risk-Of-Bias VISualization) package facilitates the rapid production of publication-quality risk-of-bias assessment figures, correctly formatted according to the assessment tool used.

The motivation for this package is more fully described in the (open access) article introducing the tool, available [here](https://doi.org/10.1002/jrsm.1411).

## Getting started

Install the development version which contains new functionality and a range of bug fixes:

```{r, eval=FALSE}   
install.packages("devtools")
devtools::install_github("mcguinlu/robvis")
```

To update the package, run the `install_github("mcguinlu/robvis")` command again.

If you wish to use the older CRAN version of the package, use the following command:

```{r, eval=FALSE}
install.packages("robvis")
```

 
### Load data
To load your own data from a .csv file:

```{r, eval=FALSE}
mydata <- read.csv("path/to/mydata.csv", header = TRUE)
```

To help users explore `robvis`, we have included example datasets in the package, one for each of the tool templates that currently exist within the package. The `data_rob2` dataset ([view it here](https://github.com/mcguinlu/robvis/blob/master/data_raw/data_rob2.csv)), which contains example risk-of-bias assessments performed using the RoB2.0 tool for randomized controlled trials, is used to create the plots in subsequent sections.

### Create plots  

The package contains two plotting functions:

#### 1. rob_summary()
Returns a ggplot object displaying a bar-chart of the risk of bias of included studies across the domains of the specified tool. [*Note: the defaults used in this function have changed from their original settings, so that a un-weighted barplot is now produced by default. See the NEWS.md file for further information.*]

```{r, eval = FALSE}
summary_rob <- rob_summary(data = data_rob2, tool = "ROB2")

summary_rob
```

``` {r, echo = FALSE}
plot <- rob_summary(data = data_rob2, tool = "ROB2")
file = paste0("man/figures/robplot",fig_count,".png")
rob_save(plot, file)
fig_count <- fig_count + 1
```




#### 2. rob_traffic_light()
Returns a ggplot object displaying a ["traffic light plot"](https://handbook-5-1.cochrane.org/chapter_8/figure_8_6_c_example_of_a_risk_of_bias_summary_figure.htm), displaying the risk of bias judgment in each domain for each study.

```{r, eval=FALSE}
trafficlight_rob <- rob_traffic_light(data = data_rob2,
                                      tool = "ROB2",
                                      psize = 10)

trafficlight_rob
```

``` {r, echo = FALSE}
plot <- rob_traffic_light(data = data_rob2,
                  tool = "ROB2",
                  psize = 10)
file = paste0("man/figures/robplot",fig_count,".png")
rob_save(plot, file)
fig_count <- fig_count + 1
```


### Other functions

#### rob_save()
Pass the `robvis` to this function, along with a destination file, to save your risk-of-bias plots using sensible defaults.

```{r, eval = FALSE}
rob_save(trafficlight_rob, "rob_fig.png")
```

#### rob_tools()
Outputs a list of the risk of bias assessment tools for which a template currently exists in rob_summary(). We expect this list to be updated in the near future to include tools such as ROBIS (tool for assessing risk of bias in systematic reviews).

```{r}
rob_tools()
```

## Advanced usage
### Change the colour scheme
The `colour` argument of both plotting functions allows users to select from two predefined colour schemes ("cochrane" or "colourblind") or to define their own palette by providing a vector of hex codes.

For example, to use the predefined "colourblind" palette:

```{r, eval=FALSE}
rob_summary(data = data_rob2,
            tool = "ROB2",
            colour = "colourblind")

```

``` {r, echo = FALSE}
plot <- rob_summary(data = data_rob2,
                           tool = "ROB2",
                           colour = "colourblind")
file = paste0("man/figures/robplot",fig_count,".png")
rob_save(plot, file)
fig_count <- fig_count + 1
```


And to define your own colour scheme:
```{r, eval=FALSE}
rob_summary(
  data = data_rob2,
  tool = "ROB2",
  colour = c("#f442c8",
             "#bef441",
             "#000000",
             "#d16684")
)

```


``` {r, echo = FALSE}
plot <- rob_summary(data = data_rob2,
                           tool = "ROB2",
                           colour = c("#f442c8",
                                      "#bef441",
                                      "#000000",
                                      "#d16684"))
file = paste0("man/figures/robplot",fig_count,".png")
rob_save(plot, file)
fig_count <- fig_count + 1
```


### No "Overall" judgement

By default, both functions include an "Overall" risk of bias domain. To prevent this, remove the overall column from your dataset and set `overall = FALSE`.

```{r, eval=FALSE}
summary_rob <- rob_summary(data = data_rob2[1:6], tool = "ROB2", overall = FALSE)
summary_rob
```

``` {r, echo = FALSE}
plot <- rob_summary(data = data_rob2[1:6], tool = "ROB2", overall = FALSE)
file = paste0("man/figures/robplot",fig_count,".png")
rob_save(plot, file)
fig_count <- fig_count + 1
```


```{r, eval=FALSE}
rob_traffic_light(data = data_rob2[1:6],
                  tool = "ROB2",
                  overall = FALSE)
```

``` {r, echo = FALSE}
plot <- rob_traffic_light(data = data_rob2[1:6],
                                      tool = "ROB2",
                                      overall = FALSE)
file = paste0("man/figures/robplot",fig_count,".png")
rob_save(plot, file)
fig_count <- fig_count + 1
```


### Editing the plots
Finally, because the output (`summary_rob` and `trafficlight_rob` in the examples above) is a ggplot2 object, it is easy to adjust the plot to your own preferences.

For example, to add a title:
```{r, eval=FALSE}
library(ggplot2)

rob_summary(data = data_rob2, tool = "ROB2") +
  ggtitle("Summary of RoB 2.0 assessments")
```

``` {r, echo = FALSE}
plot <- rob_summary(data = data_rob2, tool = "ROB2") +
  ggplot2::ggtitle("Summary of RoB2.0 assessments")
file = paste0("man/figures/robplot",fig_count,".png")
rob_save(plot, file)
fig_count <- fig_count + 1
```


## Examples of `robvis` in published papers

To date, `robvis` has been cited in more than 1500 academic articles - these can be explored [here](https://scholar.google.com/scholar?cites=12564214960529060925&as_sdt=2005&sciodt=0,5&hl=en). 

## Code of conduct

Please note that the 'robvis' project is released with a
[Contributor Code of Conduct](https://github.com/mcguinlu/robvis/blob/master/CODE_OF_CONDUCT.md).
By contributing to this project, you agree to abide by its terms.

## License

This project is licensed under the MIT License - see the [LICENSE.md](https://github.com/mcguinlu/robvis/blob/master/LICENSE) file for details.

## Acknowledgments

* The `rob_summary()` function was based on code forwarded by a colleague. I recently discovered that this code was adapted from that presented in the wonderful "[Doing Meta-Analysis in R](https://bookdown.org/MathiasHarrer/Doing_Meta_Analysis_in_R/plotting-the-summary.html)" guide, so I would like to acknowledge the authors here. 
* [Emily Kothe](https://github.com/ekothe) for help in fixing `ggplot2` coding issues.
* [Eliza Grames](https://github.com/elizagrames) for creating the `robvis` hex sticker.

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