####Part 1 Replicate the Procedures.

We split the strings in the authorlist data set,to create an edgelist and adjacency matrix. The matrix showcases the frequency in which authors collaborate together.

a<-read.csv("~/Library/CloudStorage/Box-Box/Taurean/Year_1/SSNA/ID803.csv")
a<-as.data.frame(a[,1])
colnames(a)<-"AU"
a
##                                                                                                                                                                       AU
## 1                                                                                                                               LANGSTON, WJ: BEBIANNO, MJ: MINGJIANG, Z
## 2                                                                                                                                             BEBIANNO, MJ: LANGSTON, WJ
## 3                                                                                                                                 BEBIANNO, MJ: LANGSTON, WJ: SIMKISS, K
## 4                                                                                                                                             BEBIANNO, MJ: LANGSTON, WJ
## 5                                                                                                                         NOTT, JA: BEBIANNO, MJ: LANGSTON, WJ: RYAN, KP
## 6                                                                                                                                   BEBIANNO, MJ: NOTT, JA: LANGSTON, WJ
## 7                                                                                                                                             BEBIANNO, MJ: LANGSTON, WJ
## 8                                                                                                                                   BEBIANNO, MJ: SERAFIM, MAP: RITA, MF
## 9                                                                                                                                             BEBIANNO, MJ: LANGSTON, WJ
## 10                                                                                                                                                          BEBIANNO, MJ
## 11                                                                                                                                               Mudge, SM: Bebianno, MJ
## 12                                                                                                                                             Bebianno, MJ: Machado, LM
## 13                                                                                                                          Caetano, M: Falcao, M: Vale, C: Bebianno, MJ
## 14                                                                                                                                   Gibbs, PE: Bebianno, MJ: Coelho, MR
## 15                                                                                                                       Mudge, SM: East, JA: Bebianno, MJ: Barreira, LA
## 16                                                                                                                                            Bebianno, MJ: Langston, WJ
## 17                                                                                                                                             Bebianno, MJ: Serafim, MA
## 18                                                                                                                      Gibbs, PE: Nott, JA: Nicolaidou, A: Bebianno, MJ
## 19                                                                                                                                            Bebianno, MJ: Langston, WJ
## 20                                                                                        Cajaraville, MP: Bebianno, MJ: Blasco, J: Porte, C: Sarasquete, C: Viarengo, A
## 21                                                                                                                                   Bebianno, MJ: Serafim, MA: Simes, D
## 22                                                                                                                                             Serafim, MA: Bebianno, MJ
## 23                                                                                                                                  Coelho, MR: Fuentes, S: Bebianno, MJ
## 24                                                                                                                                Barroso, CM: Moreira, MH: Bebianno, MJ
## 25                                                                     Dabrio, M: Rodriguez, AR: Bordin, G: Bebianno, MJ: De Ley, M: Sestakova, I: Vasak, M: Nordberg, M
## 26                                                                                                               Geret, F: Jouan, A: Turpin, V: Bebianno, MJ: Cosson, RP
## 27                                                                                                                       Geret, F: Serafim, A: Barreira, L: Bebianno, MJ
## 28                                                                                                                                Coelho, MR: Bebianno, MJ: Langston, WJ
## 29                                                                                                                                Coelho, MR: Bebianno, MJ: Langston, WJ
## 30                                                                                                                                Coelho, MR: Bebianno, MJ: Langston, WJ
## 31                                                                                                                                     Cravo, A: Foster, P: Bebianno, MJ
## 32                                                                                                                  Serafim, MA: Company, RM: Bebianno, MJ: Langston, WJ
## 33                                                                                                                       Geret, F: Serafim, A: Barreira, L: Bebianno, MJ
## 34                                                                                                                                             Bebianno, MJ: Serafim, MA
## 35                                                                                                                          Bebianno, MJ: Cravo, A: Miguel, C: Morais, S
## 36                                                                                                                                   Simes, DC: Bebianno, MJ: Moura, JJG
## 37                                 Brown, CJ: Eaton, RA: Cragg, SM: Goulletquer, P: Nicolaidou, A: Bebianno, MJ: Icely, J: Daniel, G: Nilsson, T: Pitman, AJ: Sawyer, GS
## 38                                                                                                              Cravo, A: Madureira, M: Rita, F: Silva, JA: Bebianno, MJ
## 39                                                                                                                                    Geret, F: Serafim, A: Bebianno, MJ
## 40                                                                                                                                                Geret, F: Bebianno, MJ
## 41                                                                                                                                     Cravo, A: Bebianno, MJ: Foster, P
## 42                                                                                        Company, R: Serafim, A: Bebianno, MJ: Cosson, R: Shillito, B: Fiala-Medioni, A
## 43                                                                                           Geret, F: Manduzio, H: Company, R: Leboulenger, F: Bebianno, MJ: Danger, JM
## 44                                                                                                           Smaoui-Damak, W: Hamza-Chaffai, A: Bebianno, MJ: Amiard, JC
## 45                                                                                                        Martins, N: Lopes, I: Guilhermino, L: Bebianno, MJ: Ribeiro, R
## 46                                                                                          Barreira, LA: Bebianno, MJ: Mudge, SM: Ferreira, AM: Albino, CI: Veriato, LM
## 47                                                                                                                                             Morgado, ME: Bebianno, MJ
## 48                                                                                                                                                Cravo, A: Bebianno, MJ
## 49                                                                                           Bebianno, MJ: Company, R: Serafim, A: Camus, L: Cosson, RP: Fiala-Medoni, A
## 50                                                                                                                    Gomes, TCM: Serafim, MA: Company, RS: Bebianno, MJ
## 51                                                                                                                        Serafim, A: Company, R: Cravo, A: Bebianno, MJ
## 52                                                                              Company, R: Serafim, A: Cosson, R: Camus, L: Shillito, B: Fiala-Medioni, A: Bebianno, MJ
## 53                                                                                                                                Coelho, MR: Langston, WJ: Bebianno, MJ
## 54                                                                                                     Hoarau, P: Damiens, G: Romeo, M: Gnassia-Barelli, M: Bebianno, MJ
## 55                                                                                           Company, R: Serafim, A: Cosson, R: Fiala-Medioni, A: Dixon, D: Bebianno, MJ
## 56                                                                                                             Cravo, A: Madureira, M: Felicia, H: Rita, F: Bebianno, MJ
## 57                                                                                                              Guimaraes-Soares, L: Felicia, H: Bebianno, MJ: Cassio, F
## 58                                                                                                                                 Barreira, LA: Mudge, SM: Bebianno, MJ
## 59                                                                                                                                 Barreira, LA: Mudge, SM: Bebianno, MJ
## 60                                                                                                                                              Serafim, A: Bebianno, MJ
## 61                                                                                                                                  Fernandes, D: Porte, C: Bebianno, MJ
## 62                                                                                          Company, R: Serafim, A: Cosson, R: Fiala-Medioni, A: Dixon, DR: Bebianno, MJ
## 63                                                                                                                 Gonzalez-Rey, M: Serafim, A: Company, R: Bebianno, MJ
## 64                                                                                                                                 Barreira, LA: Mudge, SM: Bebianno, MJ
## 65                                                                                                            Bebianno, MJ: Lopes, B: Guerra, L: Hoarau, P: Ferreira, AM
## 66                                                                                                                                              Serafim, A: Bebianno, MJ
## 67                                                                                                 Cravo, A: Foster, P: Almeida, C: Company, R: Cosson, RP: Bebianno, MJ
## 68                                                                                            Bebianno, MJ: Santos, C: Canario, J: Gouveia, N: Sena-Carvalho, D: Vale, C
## 69                                                                                                              Picado, A: Bebianno, MJ: Costa, MH: Ferreira, A: Vale, C
## 70                                                                                                      Peixoto, NC: Serafim, MA: Flores, EMM: Bebianno, MJ: Pereira, ME
## 71                                                                                                                                  Fernandes, D: Bebianno, MJ: Porte, C
## 72                                                                                                          Serafim, A: Lopes, B: Company, R: Ferreira, AM: Bebianno, MJ
## 73                                                             Company, R: Serafim, A: Cosson, RP: Fiala-Medioni, A: Camus, L: Colaco, A: Serrao-Santos, R: Bebianno, MJ
## 74                                                                                                                                  Fernandes, D: Bebianno, MJ: Porte, C
## 75                                                                                                                        Fernandes, D: Zanuy, S: Bebianno, MJ: Porte, C
## 76                                                                                   Marques, CC: Gabriel, SI: Pinheiro, T: Viegas-Crespo, AM: Mathias, MD: Bebianno, MJ
## 77                                                                                                         Oliveira, M: Serafim, A: Bebianno, MJ: Pacheco, M: Santos, MA
## 78                                                                                                             Cravo, A: Foster, P: Almeida, C: Bebianno, MJ: Company, R
## 79                                                            Cosson, RP: Thiebaut, E: Company, R: Castrec-Rouelle, M: Colaco, A: Martins, I: Sarradin, PM: Bebianno, MJ
## 80                                                                              Peixoto, NC: Rocha, LC: Moraes, DP: Bebianno, MJ: Dressler, VL: Flores, EMM: Pereira, ME
## 81                                                                                                       Gonzalez-Rey, M: Serafim, A: Company, R: Gomes, T: Bebianno, MJ
## 82                                                                                       Chora, S: McDonagh, B: Sheehan, D: Starita-Geribaldi, M: Romeo, M: Bebianno, MJ
## 83                                                                                                               Fernandes, D: Andreu-Sanchez, O: Bebianno, MJ: Porte, C
## 84                                                                                    Company, R: Serafim, A: Lopes, B: Cravo, A: Shepherd, TJ: Pearson, G: Bebianno, MJ
## 85                                                                                    Ahmad, I: Maria, VL: Oliveira, M: Serafim, A: Bebianno, MJ: Pacheco, M: Santos, MA
## 86                                                                                       Cravo, A: Lopes, B: Serafim, A: Company, R: Barreira, L: Gomes, T: Bebianno, MJ
## 87                                                                                                           Fonseca, V: Serafim, A: Company, R: Bebianno, MJ: Cabral, H
## 88                                                                                    Oliveira, M: Maria, VL: Ahmad, I: Serafim, A: Bebianno, MJ: Pacheco, M: Santos, MA
## 89                                                                                                                                              Serafim, A: Bebianno, MJ
## 90                                                                                                                                   Maria, VL: Santos, MA: Bebianno, MJ
## 91                                                                                                                                            Bebianno, MJ: Barreira, LA
## 92                                                                                    Maria, VL: Ahmad, I: Oliveira, M: Serafim, A: Bebianno, MJ: Pacheco, M: Santos, MA
## 93                                                                                       Chora, S: Starita-Geribaldi, M: Guigonis, JM: Samson, M: Romeo, M: Bebianno, MJ
## 94                                                                                              Azevedo, JS: Serafim, A: Company, R: Braga, ES: Favaro, DI: Bebianno, MJ
## 95                                                                                                                                   Maria, VL: Santos, MA: Bebianno, MJ
## 96                                                                                                                                  Fernandes, D: Bebianno, MJ: Porte, C
## 97                                                                                                                               Gomes, T: Gonzalez-Rey, M: Bebianno, MJ
## 98                                                                                    Oliveira, M: Ahmad, I: Maria, VL: Serafim, A: Bebianno, MJ: Pacheco, M: Santos, MA
## 99                                                                                            Company, R: Felicia, H: Serafim, A: Almeida, AJ: Biscoito, M: Bebianno, MJ
## 100                                                                                                                  Urena, R: Bebianno, MJ: del Ramo, J: Torreblanca, A
## 101                                                                       Company, R: Serafim, A: Cosson, RP: Fiala-Medioni, A: Camus, L: Serrao-Santos, R: Bebianno, MJ
## 102                                                                                                                                             Serafim, A: Bebianno, MJ
## 103                                                                                      Chora, S: McDonagh, B: Sheehan, D: Starita-Geribaldi, M: Romeo, M: Bebianno, MJ
## 104                                                                         Oliveira, M: Maria, VL: Ahmad, I: Teles, M: Serafim, A: Bebianno, MJ: Pacheco, M: Santos, MA
## 105                                                                    Oliveira, M: Ahmad, I: Maria, VL: Ferreira, CSS: Serafim, A: Bebianno, MJ: Pacheco, M: Santos, MA
## 106                                                                                                   Gonzalez-Rey, M: Lau, TC: Gomes, T: Maria, VL: Bebianno, MJ: Wu, R
## 107 Company, R: Serafim, A: Lopes, B: Cravo, A: Kalman, J: Riba, I: DelValls, TA: Blasco, J: Delgado, J: Sarmiento, AM: Nieto, JM: Shepherd, TJ: Nowell, G: Bebianno, MJ
## 108                                                                                   Fonseca, VF: Franca, S: Serafim, A: Company, R: Lopes, B: Bebianno, MJ: Cabral, HN
## 109                                                                                                                                              Maria, VL: Bebianno, MJ
## 110                                                                                                             Almeida, C: Pereira, C: Gomes, T: Bebianno, MJ: Cravo, A
## 111                                                                  Fonseca, VF: Franca, S: Vasconcelos, RP: Serafim, A: Company, R: Lopes, B: Bebianno, MJ: Cabral, HN
## 112                                                                                                                                        Gonzalez-Rey, M: Bebianno, MJ
## 113                                                                                             Gomes, T: Pinheiro, JP: Cancio, I: Pereira, CG: Cardoso, C: Bebianno, MJ
## 114                                                                                         Serafim, A: Lopes, B: Company, R: Cravo, A: Gomes, T: Sousa, V: Bebianno, MJ
## 115                                                                                                Company, R: Antunez, O: Bebianno, MJ: Cajaraville, MP: Torreblanca, A
## 116                                                                                                                                        Gonzalez-Rey, M: Bebianno, MJ
## 117    Cravo, A: Pereira, C: Gomes, T: Cardoso, C: Serafim, A: Almeida, C: Rocha, T: Lopes, B: Company, R: Medeiros, A: Norberto, R: Pereira, R: Araujo, O: Bebianno, MJ
## 118                                                                                                                                 Lopes, B: Ferreira, AM: Bebianno, MJ
## 119                                                                  Serafim, A: Company, R: Lopes, B: Fonseca, VF: Franca, S: Vasconcelos, RP: Bebianno, MJ: Cabral, HN
## 120                                                                                             Gomes, T: Pereira, CG: Cardoso, C: Pinheiro, JP: Cancio, I: Bebianno, MJ
#package for first split
# install.packages("splitstackshape")
library(splitstackshape)
#As can be seen in the file the separator of interest is :
a1<-cSplit(a, splitCols = "AU", sep = ":", direction = "wide", drop = FALSE,
           type.convert) #retain the matrix form version of the adjacency list input
## Warning in type.convert.default(X[[i]], ...): 'as.is' should be specified by the
## caller; using TRUE

## Warning in type.convert.default(X[[i]], ...): 'as.is' should be specified by the
## caller; using TRUE

## Warning in type.convert.default(X[[i]], ...): 'as.is' should be specified by the
## caller; using TRUE

## Warning in type.convert.default(X[[i]], ...): 'as.is' should be specified by the
## caller; using TRUE

## Warning in type.convert.default(X[[i]], ...): 'as.is' should be specified by the
## caller; using TRUE

## Warning in type.convert.default(X[[i]], ...): 'as.is' should be specified by the
## caller; using TRUE

## Warning in type.convert.default(X[[i]], ...): 'as.is' should be specified by the
## caller; using TRUE

## Warning in type.convert.default(X[[i]], ...): 'as.is' should be specified by the
## caller; using TRUE

## Warning in type.convert.default(X[[i]], ...): 'as.is' should be specified by the
## caller; using TRUE

## Warning in type.convert.default(X[[i]], ...): 'as.is' should be specified by the
## caller; using TRUE

## Warning in type.convert.default(X[[i]], ...): 'as.is' should be specified by the
## caller; using TRUE

## Warning in type.convert.default(X[[i]], ...): 'as.is' should be specified by the
## caller; using TRUE

## Warning in type.convert.default(X[[i]], ...): 'as.is' should be specified by the
## caller; using TRUE

## Warning in type.convert.default(X[[i]], ...): 'as.is' should be specified by the
## caller; using TRUE
#Here we just drop the original first column
a1<-a1[,-1]
#class(a1)
write.csv(a1, file = "~/Library/CloudStorage/Box-Box/Taurean/Year_1/SSNA/authorship.csv")
mat <- as.matrix(a1)
head(mat)
##      AU_01          AU_02          AU_03          AU_04      AU_05 AU_06 AU_07
## [1,] "LANGSTON, WJ" "BEBIANNO, MJ" "MINGJIANG, Z" NA         NA    NA    NA   
## [2,] "BEBIANNO, MJ" "LANGSTON, WJ" NA             NA         NA    NA    NA   
## [3,] "BEBIANNO, MJ" "LANGSTON, WJ" "SIMKISS, K"   NA         NA    NA    NA   
## [4,] "BEBIANNO, MJ" "LANGSTON, WJ" NA             NA         NA    NA    NA   
## [5,] "NOTT, JA"     "BEBIANNO, MJ" "LANGSTON, WJ" "RYAN, KP" NA    NA    NA   
## [6,] "BEBIANNO, MJ" "NOTT, JA"     "LANGSTON, WJ" NA         NA    NA    NA   
##      AU_08 AU_09 AU_10 AU_11 AU_12 AU_13 AU_14
## [1,] NA    NA    NA    NA    NA    NA    NA   
## [2,] NA    NA    NA    NA    NA    NA    NA   
## [3,] NA    NA    NA    NA    NA    NA    NA   
## [4,] NA    NA    NA    NA    NA    NA    NA   
## [5,] NA    NA    NA    NA    NA    NA    NA   
## [6,] NA    NA    NA    NA    NA    NA    NA
mat<-tolower(mat)
dim(mat)# the resulting column dimension is the number of times you will have to repeat the following procedure minus 1
## [1] 120  14
a1<-mat
edgelist1<-matrix(NA, 1, 2)#empty matrix two columns
for (i in 1:(ncol(a1)-1)) {
  edgelist11 <- cbind(a1[, i], c(a1[, -c(1:i)]))
  edgelist1 <- rbind(edgelist1,edgelist11)
  edgelist1<-edgelist1[!is.na(edgelist1[,2]),]
  edgelist1<-edgelist1[edgelist1[,2]!="",]
  }
dim(edgelist1)
## [1] 1283    2
write.csv(edgelist1, file = "~/Library/CloudStorage/Box-Box/Taurean/Year_1/SSNA/authorship_edgelist.csv")

Plot graph G & G.C.

The g rendering has loops on itsself and directions that go back and forth between nodes. G.C. the simplified render does not have the directed edges.

####
plot(graph.edgelist(edgelist1), vertex.size = 10, vertex.label.cex =.5)

plot(g.c, vertex.size = 10, vertex.label.cex=(0.5), edge.width = w.gc)

Using the list object identify top collaborators.

Using the edgelist with the weights in vector 3, we can see that the top three collaborators are: Bebianno and Serafim. Their most frequent collaboration is on synthesis of proteins in bivalves and undersea animal gills. Bebianno and Company. Their research is also on marine biology. Typically on mussels. Serafim and Company collaborate the most. Their research is on marine responses to contaminants.

links<-as.data.frame(cbind(get.edgelist(g.c), E(g.c)$weight))

#head(links,20)
dim(links)
## [1] 734   3
links$V3<-as.numeric(links$V3)

links<- links[order(links$V3, decreasing=T),]
head(links)
##               V1           V2 V3
## 27  bebianno, mj   serafim, a 36
## 35  bebianno, mj   company, r 27
## 234   serafim, a   company, r 22
## 1   langston, wj bebianno, mj 15
## 28  bebianno, mj     cravo, a 15
## 51  bebianno, mj     lopes, b 11
write.csv(links, file = "~/Library/CloudStorage/Box-Box/Taurean/Year_1/SSNA/weighted_authorship.csv")