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scholar: Analyse citation datafrom Google Scholar

Guangchuang Yu, James Keirstead andGregory Jefferis

2025-06-26

Retrieving basic information

## Define the id for Richard Feynmanid<-'B7vSqZsAAAAJ'## Get his profileget_profile(id)
## $id## [1] "B7vSqZsAAAAJ"## ## $name## [1] "Richard Feynman"## ## $affiliation## [1] "California Institute of Technology"## ## $total_cites## [1] 131676## ## $h_index## [1] 62## ## $i10_index## [1] 103## ## $fields## [1] "quantum mechanics"       "quantum electrodynamics"## ## $homepage## character(0)## ## $coauthors## [1] "Sort by citations" "Sort by year"      "Sort by title"    ## [4] "About Scholar"     "Search help"      ## ## $available## [1] NA## ## $not_available## [1] NA

Retrieving publications

get_publications() return adata.frame ofpublication records. It contains information of the publications,includingtitle,author list,page number,citation number,publication year,etc..

Thepubid is the article ID used by Google Scholar andthe identifier that is used to retrieve the citation history of aselected publication.

## Get his publications (a large data frame)p<-get_publications(id)head(p,3)
##                                    title## 1 Quantum mechanics and path integration## 2        The Feynman lectures on physics## 3      Simulating physics with computers##                                         author## 1                         RP Feynman, AR Hibbs## 2 RP Feynman, RB Leighton, M Sands, SB Treiman## 3                                   RP Feynman##                                        journal          number cites year## 1                                  McGraw–Hill                 37629 1965## 2                                Physics Today          17, 45 23750 1964## 3 International journal of theoretical physics 21 (6), 467-488 14205 1982##                                                                                 cid## 1 8172747039614742666,12091496877795411869,3494294362048429920,18041911941623786099## 2 8172747039614742666,15649786516955137750,13112633961799421939,3669163321259408309## 3                                                              15599256484525608168##          pubid## 1 hMod-77fHWUC## 2 u-x6o8ySG0sC## 3 d1gkVwhDpl0C

Retrieving citation data

## Get his citation history, i.e. citations to his work in a given yearct<-get_citation_history(id)## Plot citation trendlibrary(ggplot2)ggplot(ct,aes(year, cites))+geom_line()+geom_point()

Users can retrieve the citation history of a particular publicationwithget_article_cite_history().

## The following publication will be used to demonstrate article citation historyas.character(p$title[1])
## [1] "Quantum mechanics and path integration"
## Get article citation historyach<-get_article_cite_history(id, p$pubid[1])## Plot citation trendggplot(ach,aes(year, cites))+geom_segment(aes(xend = year,yend =0),linewidth=1,color='darkgrey')+geom_point(size=3,color='firebrick')

Comparing scholars

You can compare the citation history of scholars by fetching datawithcompare_scholars.

# Compare Feynman and Stephen Hawkingids<-c('B7vSqZsAAAAJ','qj74uXkAAAAJ')# Get a data frame comparing the number of citations to their work in# a given yearcs<-compare_scholars(ids)
## remove some 'bad' records without sufficient informationcs<- dplyr::filter(cs,!is.na(year)& year>1900)ggplot(cs,aes(year, cites,group=name,color=name))+geom_line()+theme(legend.position="bottom")

## Compare their career trajectories, based on year of first citationcsc<-compare_scholar_careers(ids)
ggplot(csc,aes(career_year, cites,group=name,color=name))+geom_line()+geom_point()+theme(legend.position ="inside",legend.position.inside=c(.2, .8)  )

Visualizing and comparing network of coauthors

# Be careful with specifying too many coauthors as the visualization of the# network can get very messy.coauthor_network<-get_coauthors('DO5oG40AAAAJ',n_coauthors =4)coauthor_network
##                              author          coauthors## qgFBNJgAAAAJ&hl      Guangchuang Yu       Shuangbin Xu## kRtxIw0AAAAJ&hl      Guangchuang Yu Tommy Tsan-Yuk Lam## WmjCTgMAAAAJ&hl      Guangchuang Yu        Zhu Huachen## 1M8ux5YAAAAJ&hl      Guangchuang Yu       Qianwen Wang## DO5oG40AAAAJ&hl        Shuangbin Xu     Guangchuang Yu## 1M8ux5YAAAAJ&hl1       Shuangbin Xu       Qianwen Wang## HxxRzrYAAAAJ&hl        Shuangbin Xu      Zhangran Chen## 4                Tommy Tsan-Yuk Lam      About Scholar## kRtxIw0AAAAJ&hl1        Zhu Huachen Tommy Tsan-Yuk Lam## 1mTtPIIAAAAJ&hl         Zhu Huachen       Steven Riley## DO5oG40AAAAJ&hl1        Zhu Huachen     Guangchuang Yu## bib_lf0AAAAJ&hl         Zhu Huachen     Gavin Jd Smith## DO5oG40AAAAJ&hl2       Qianwen Wang     Guangchuang Yu## qgFBNJgAAAAJ&hl1       Qianwen Wang       Shuangbin Xu## b-duIhMAAAAJ&hl        Qianwen Wang       Hon-Ming Lam## GzJd-VoAAAAJ&hl        Qianwen Wang     Wai-Shing Yung

And then we have a built-in function to plot this visualization.

plot_coauthors(coauthor_network)
## Warning: Removed 6 rows containing missing values or values outside the scale range## (`geom_point()`).

Note however, that these are the coauthors listed in Google Scholarprofile and not coauthors from all publications.

Formatting publications for CV

Theformat_publications function can be used for examplein conjunction with thevitaepackage to format publications in APA Style. The short name of theauthor of interest (e.g., of the person whose CV is being made) can behighlighted in bold with theauthor.name argument. Thefunction after the pipe allows rmarkdown to format them properly, andthe code chunk should be set toresults = "asis".

APA style

format_publications("DO5oG40AAAAJ","Guangchuang Yu")|>head()|>cat(sep='\n\n')

Xu, S., Wang, Q., Wen, S., Li, J., He, N., Li, M., Hackl, T., Wang,R., Zeng, D., Wang, S., & … (2025). aplot: Simplifying the creationof complex graphs to visualize associations across diverse data types.The Innovation.

Wang, Q., Zhu, H., Deng, L., Xu, S., Xie, W., Li, M., Wang, R., Tie,L., Zhan, L., & Yu, G. (2025). Spatial Transcriptomics:Biotechnologies, Computational Tools, and Neuroscience Applications.Small Methods. 9 (5), 2401107

Gao, Y., Li, B., Jin, Y., Cheng, J., Tian, W., Ying, L., Hong, L.,Xin, S., Lin, B., Liu, C., & … (2025). Spatial multi-omics profilingof breast cancer oligo-recurrent lung metastasis.Oncogene.1-15

Chen, M., Luo, X., Xu, S., Li, L., Li, J., Xie, Z., Wang, Q., Liao,Y., Liu, B., Liang, W., & … (2025). Scalable method for exploringphylogenetic placement uncertainty with custom visualizations usingtreeio and ggtree.iMeta, e. e269

Tu, Y., Xu, S., Shu, H., Wang, X., Li, W., Yu, G., & He, L.(2025). 16S rRNA Sequencing Reveals Dysbiosis of Skin MicrobiomeAssociated With Disease Severity in Chronic Actinic Dermatitis.Photodermatology, photoimmunology & photomedicine. 41 (3),e70022

Yu, G., Xu, S., Wang, Q., Li, J., Li, J., Wang, R., Zhang, L., Xie,W., Wen, S., Li, M., & … (2025). Precise Characterization ofCellular States and Spatial Variable Patterns within SpatialTranscriptomics. **.

Numbering format

format_publications("DO5oG40AAAAJ","Guangchuang Yu")|>head()|>print(quote=FALSE)

[1] Xu, S., Wang, Q., Wen, S., Li, J., He, N., Li, M., Hackl, T.,Wang, R., Zeng, D., Wang, S., & … (2025). aplot: Simplifying thecreation of complex graphs to visualize associations across diverse datatypes.The Innovation.
[2] Wang, Q., Zhu, H., Deng, L., Xu, S., Xie, W., Li, M., Wang, R., Tie,L., Zhan, L., & Yu, G. (2025). Spatial Transcriptomics:Biotechnologies, Computational Tools, and Neuroscience Applications.Small Methods. 9 (5), 2401107
[3] Gao, Y., Li, B., Jin, Y., Cheng, J., Tian, W., Ying, L., Hong, L.,Xin, S., Lin, B., Liu, C., & … (2025). Spatial multi-omics profilingof breast cancer oligo-recurrent lung metastasis.Oncogene.1-15
[4] Chen, M., Luo, X., Xu, S., Li, L., Li, J., Xie, Z., Wang, Q., Liao,Y., Liu, B., Liang, W., & … (2025). Scalable method for exploringphylogenetic placement uncertainty with custom visualizations usingtreeio and ggtree.iMeta, e. e269
[5] Tu, Y., Xu, S., Shu, H., Wang, X., Li, W., Yu, G., & He, L.(2025). 16S rRNA Sequencing Reveals Dysbiosis of Skin MicrobiomeAssociated With Disease Severity in Chronic Actinic Dermatitis.Photodermatology, photoimmunology & photomedicine. 41 (3),e70022 [6] Yu, G., Xu, S., Wang, Q., Li, J., Li, J., Wang, R., Zhang,L., Xie, W., Wen, S., Li, M., & … (2025). Precise Characterizationof Cellular States and Spatial Variable Patterns within SpatialTranscriptomics. **.


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