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Visualizing Authors' Production Over Time with Category Proportions and Publication Counts in Mapping Reviews

Year: 2026
Type: software
Abstract: This R script supports mapping reviews and systematic mapping reviews by visualizing authors' publication output over time in association with a researcher-defined categorical variable. The workflow uses the Authors' Production over Time output generated by the bibliometrix package. Researchers can add a classification variable of interest, such as taxonomic group, research focus, methodological approach, intervention type, or another category relevant to the review. For each author-year combination, the script: calculates the total number of publications; represents category composition using proportional pie charts; scales circle size according to the number of publications; includes an explicit N.Articles size legend to facilitate interpretation of publication counts; automatically identifies the category columns generated after data transformation. The graphical output can be exported as SVG, PNG at 600 dpi, and TIFF at 600 dpi with LZW compression, allowing both editable vector output and high-resolution figures suitable for scientific publications. Users should adapt the input dataset, classification variable, category labels, color palette, year range, legend breaks, and graphical parameters according to their mapping review. The workflow is implemented in R and uses packages including bibliometrix, tidyverse, readxl, scatterpie, and ggplot2. Version note Version 1 script of this analysis is available here: https://zenodo.org/records/22115185. This is version 2, which adds an explicit publication-count legend based on circle size and automatic identification of category columns, improving figure interpretation and script adaptability.
DOI: 10.5281/zenodo.22117619
Language: Portuguese
Open Access status: green
OpenAlex ID: W7204228830
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