library(pubmedR)
## Warning: 程辑包'pubmedR'是用R版本4.2.3 来建造的
api_key = NULL
# pubmed
query = '("Bioinformatics (Oxford, England)"[Journal]) AND (("1998"[Date - Publication] : "1998"[Date - Publication]))'
res <- pmQueryTotalCount(query = query, api_key = api_key)
D1 <- pmApiRequest(query = query, limit = res$total_count, api_key = NULL)
## Documents  131  of  131
#D1
query = '("Bioinformatics (Oxford, England)"[Journal]) AND (("1999"[Date - Publication] : "1999"[Date - Publication]))'
res <- pmQueryTotalCount(query = query, api_key = api_key)
D2 <- pmApiRequest(query = query, limit = res$total_count, api_key = NULL)
## Documents  145  of  145
m1 = pmApi2df(D1)
## ================================================================================
m2 = pmApi2df(D2)
## ================================================================================
m = rbind(m1, m2)
#View(m)
df <- m
df = df[df$DT == "JOURNAL ARTICLE", ]
fa = gsub(";.*$", "", df$AF)
sort(table(fa))
## fa
##           ACKERMANN, F             ALLEX, C F                  AN, J 
##                      1                      1                      1 
##            ANDERSON, I           BABENKO, V N            BACKOFEN, R 
##                      1                      1                      1 
##            BAILEY, T L             BAKER, P G            BARILLOT, E 
##                      1                      1                      1 
##          BELLGARD, M I               BENTZ, J           BERIKOV, V B 
##                      1                      1                      1 
##             BLAKE, R D               BOHNE, A           BOUTHINON, D 
##                      1                      1                      1 
##               BOYLE, J        BRUN-SAMARCQ, L              BRUSIC, V 
##                      1                      1                      1 
##        BUCKA-LASSEN, K            BURGLIN, TR            BUSHNELL, S 
##                      1                      1                      1 
##             CARIASO, M              CHAO, K M        CHARLESTON, M A 
##                      1                      1                      1 
##              CHAU, F T              CHEN, C C            CHEUNG, K H 
##                      1                      1                      1 
##                CHOU, A        CHUZHANOVA, N A           COMERON, J M 
##                      1                      1                      1 
##              CONERY, J          CONSALEZ, G G              CORPET, F 
##                      1                      1                      1 
##             COUPAYE, T          CRAWFORD, O H              CUFF, J A 
##                      1                      1                      1 
##            DANDEKAR, T        DI FRANCESCO, V              DLAKIC, M 
##                      1                      1                      1 
##            DRABL酶S, F            ECKMAN, B A              EDDY, S R 
##                      1                      1                      1 
##          EISENHABER, F               EVERS, D              FENY枚, D 
##                      1                      1                      1 
##          FERLANTI, E S             FISCHER, D             FISCHER, S 
##                      1                      1                      1 
##         FLEISCHMANN, W             FORSTER, M            FRISHMAN, D 
##                      1                      1                      1 
##            GERSTEIN, M             GILBERT, D          GIUDICELLI, V 
##                      1                      1                      1 
##          GON莽ALVES, I             GOODMAN, N            GORODKIN, J 
##                      1                      1                      1 
##            GORYANIN, I                GOTO, S               GOUET, P 
##                      1                      1                      1 
##            GOUJON, C P           GRIGORIEV, A            GUERMEUR, Y 
##                      1                      1                      1 
##             GUSEV, V D               HAMPE, J                 HAN, K 
##                      1                      1                      1 
##               HANKE, J              HARLEY, E           HEIDTKE, K R 
##                      1                      1                      1 
##            HENIKOFF, S           HERMJAKOB, H          HERN谩NDEZ, A 
##                      1                      1                      1 
##             HERTZ, G Z              HERZEL, H            HIROKAWA, T 
##                      1                      1                      1 
##                  HU, J               HUBER, T             HUSON, D H 
##                      1                      1                      1 
##                JU, L W             JUNGFER, K            JUNKER, V L 
##                      1                      1                      1 
##            KALLBERG, Y             KARCHIN, R            KASPRZAK, W 
##                      1                      1                      1 
##                 KEL, A              KLEFFE, J             KNUDSEN, B 
##                      1                      1                      1 
##             KNUDSEN, S          KOCHETOV, A V         KOLCHANOV, N A 
##                      1                      1                      1 
##           KRAEMER, E T              KRAUSE, A               KURTZ, S 
##                      1                      1                      1 
##          KYRPIDES, N C             LABESSE, G             LADUNGA, I 
##                      1                      1                      1 
##        LANZAVECCHIA, S          LASCARIS, R F            LAVORGNA, G 
##                      1                      1                      1 
##            LENHOF, H P               LESER, U               LEVIN, S 
##                      1                      1                      1 
##          LEVITSKY, V G                LEVY, S               LIN, W J 
##                      1                      1                      1 
##          LINDENBAUM, P               LIU, J S                LI貌, P 
##                      1                      1                      1 
##          LUKASHIN, A V           LYNGS酶, R B            MACAULEY, J 
##                      1                      1                      1 
##         MALLIAVIN, T E           MALLIOS, R R        MALTCHENKO, S Z 
##                      1                      1                      1 
##            MANGAN, M E             MCGUIRE, G         MCINERNEY, J O 
##                      1                      1                      1 
##              MENDES, P             MENDOZA, L            MILANESI, L 
##                      1                      1                      1 
##           MIZUGUCHI, K         MORGENSTERN, B MUCCHIELLI-GIORGI, M H 
##                      1                      1                      1 
##            MURAKAMI, K              MURVAI, J            M茅DIGUE, C 
##                      1                      1                      1 
##            NADKARNI, P              NAKATA, K              NEWELL, W 
##                      1                      1                      1 
##           O'DONOVAN, C               OHLER, U             OKAYAMA, T 
##                      1                      1                      1 
##            OLIVER, J L          PARBHANE, R V                PARK, J 
##                      1                      1                      1 
##           PASQUIER, CM               PAZOS, F              PEGG, S C 
##                      1                      1                      1 
##             PESHKIN, L            PFEIFFER, T             PICKERT, L 
##                      1                      1                      1 
##            POCOCK, M R           PODLICH, D W         PONOMAREV, A L 
##                      1                      1                      1 
##                POOK, S              POSADA, D            PROUTSKI, V 
##                      1                      1                      1 
##             RAMPONE, S               RAREY, M              REBHAN, M 
##                      1                      1                      1 
##             REDDY, B V             REDDY, V S           RIGOUTSOS, I 
##                      1                      1                      1 
##            RIIKONEN, P               RIMER, M     RODRIGUEZ-TOM茅, P 
##                      1                      1                      1 
##              ROGNES, T               ROZAS, J           SALAMOV, A A 
##                      1                      1                      1 
##             SANKOFF, D              SAQI, M A         SCH盲FFER, A A 
##                      1                      1                      1 
##             SCORDIS, P              SELBIG, J            SELUJA, G A 
##                      1                      1                      1 
##              SENGER, M             SEROV, V N               SHATS, O 
##                      1                      1                      1 
##            SNEATH, P H             SOBOLEV, V           SODERLUND, C 
##                      1                      1                      1 
##          SOUTHERN, M R               SPANG, R      SRINIVASARAO, G Y 
##                      1                      1                      1 
##               STOYE, J               SZE, S H            S谩NCHEZ, R 
##                      1                      1                      1 
##           TABASKA, J E             TAMAMES, J              TARNAS, C 
##                      1                      1                      1 
##          TATUSOVA, T A              TAYLOR, S            THIEFFRY, D 
##                      1                      1                      1 
##            THOMAS, G H          THOMPSON, J D           TH茅BAULT, P 
##                      1                      1                      1 
##              TOMITA, M             TRELLES, O             TSUNODA, T 
##                      1                      1                      1 
##               ULIEL, S            VARR茅, J S              WAGNER, A 
##                      1                      1                      1 
##              WANG, H C                 WEI, T             WEISSIG, H 
##                      1                      1                      1 
##                WJST, M            WORLEY, K C              WRIGHT, W 
##                      1                      1                      1 
##                WU, C H                WUJU, L                 YAN, M 
##                      1                      1                      1 
##                YUAN, J              YUAN, Y P             ZHANG, C T 
##                      1                      1                      1 
##               ZHANG, Z              ZIMMER, R              ACHARD, F 
##                      1                      1                      2 
##           ANDRADE, M A               BALDI, P             BROWN, N P 
##                      2                      2                      2 
##              COWARD, E             ELLIS, L B               GRACY, J 
##                      2                      2                      2 
##            IAZZETTI, G          KOLPAKOV, F A                MOTT, R 
##                      2                      2                      2 
##       PONOMARENKO, M P                YADA, T                 ZHU, J 
##                      2                      2                      2
#View(data.frame(fa))
table(fa)
## fa
##              ACHARD, F           ACKERMANN, F             ALLEX, C F 
##                      2                      1                      1 
##                  AN, J            ANDERSON, I           ANDRADE, M A 
##                      1                      1                      2 
##           BABENKO, V N            BACKOFEN, R            BAILEY, T L 
##                      1                      1                      1 
##             BAKER, P G               BALDI, P            BARILLOT, E 
##                      1                      2                      1 
##          BELLGARD, M I               BENTZ, J           BERIKOV, V B 
##                      1                      1                      1 
##             BLAKE, R D               BOHNE, A           BOUTHINON, D 
##                      1                      1                      1 
##               BOYLE, J             BROWN, N P        BRUN-SAMARCQ, L 
##                      1                      2                      1 
##              BRUSIC, V        BUCKA-LASSEN, K            BURGLIN, TR 
##                      1                      1                      1 
##            BUSHNELL, S             CARIASO, M              CHAO, K M 
##                      1                      1                      1 
##        CHARLESTON, M A              CHAU, F T              CHEN, C C 
##                      1                      1                      1 
##            CHEUNG, K H                CHOU, A        CHUZHANOVA, N A 
##                      1                      1                      1 
##           COMERON, J M              CONERY, J          CONSALEZ, G G 
##                      1                      1                      1 
##              CORPET, F             COUPAYE, T              COWARD, E 
##                      1                      1                      2 
##          CRAWFORD, O H              CUFF, J A            DANDEKAR, T 
##                      1                      1                      1 
##        DI FRANCESCO, V              DLAKIC, M            DRABL酶S, F 
##                      1                      1                      1 
##            ECKMAN, B A              EDDY, S R          EISENHABER, F 
##                      1                      1                      1 
##             ELLIS, L B               EVERS, D              FENY枚, D 
##                      2                      1                      1 
##          FERLANTI, E S             FISCHER, D             FISCHER, S 
##                      1                      1                      1 
##         FLEISCHMANN, W             FORSTER, M            FRISHMAN, D 
##                      1                      1                      1 
##            GERSTEIN, M             GILBERT, D          GIUDICELLI, V 
##                      1                      1                      1 
##          GON莽ALVES, I             GOODMAN, N            GORODKIN, J 
##                      1                      1                      1 
##            GORYANIN, I                GOTO, S               GOUET, P 
##                      1                      1                      1 
##            GOUJON, C P               GRACY, J           GRIGORIEV, A 
##                      1                      2                      1 
##            GUERMEUR, Y             GUSEV, V D               HAMPE, J 
##                      1                      1                      1 
##                 HAN, K               HANKE, J              HARLEY, E 
##                      1                      1                      1 
##           HEIDTKE, K R            HENIKOFF, S           HERMJAKOB, H 
##                      1                      1                      1 
##          HERN谩NDEZ, A             HERTZ, G Z              HERZEL, H 
##                      1                      1                      1 
##            HIROKAWA, T                  HU, J               HUBER, T 
##                      1                      1                      1 
##             HUSON, D H            IAZZETTI, G                JU, L W 
##                      1                      2                      1 
##             JUNGFER, K            JUNKER, V L            KALLBERG, Y 
##                      1                      1                      1 
##             KARCHIN, R            KASPRZAK, W                 KEL, A 
##                      1                      1                      1 
##              KLEFFE, J             KNUDSEN, B             KNUDSEN, S 
##                      1                      1                      1 
##          KOCHETOV, A V         KOLCHANOV, N A          KOLPAKOV, F A 
##                      1                      1                      2 
##           KRAEMER, E T              KRAUSE, A               KURTZ, S 
##                      1                      1                      1 
##          KYRPIDES, N C             LABESSE, G             LADUNGA, I 
##                      1                      1                      1 
##        LANZAVECCHIA, S          LASCARIS, R F            LAVORGNA, G 
##                      1                      1                      1 
##            LENHOF, H P               LESER, U               LEVIN, S 
##                      1                      1                      1 
##          LEVITSKY, V G                LEVY, S               LIN, W J 
##                      1                      1                      1 
##          LINDENBAUM, P               LIU, J S                LI貌, P 
##                      1                      1                      1 
##          LUKASHIN, A V           LYNGS酶, R B            MACAULEY, J 
##                      1                      1                      1 
##         MALLIAVIN, T E           MALLIOS, R R        MALTCHENKO, S Z 
##                      1                      1                      1 
##            MANGAN, M E             MCGUIRE, G         MCINERNEY, J O 
##                      1                      1                      1 
##              MENDES, P             MENDOZA, L            MILANESI, L 
##                      1                      1                      1 
##           MIZUGUCHI, K         MORGENSTERN, B                MOTT, R 
##                      1                      1                      2 
## MUCCHIELLI-GIORGI, M H            MURAKAMI, K              MURVAI, J 
##                      1                      1                      1 
##            M茅DIGUE, C            NADKARNI, P              NAKATA, K 
##                      1                      1                      1 
##              NEWELL, W           O'DONOVAN, C               OHLER, U 
##                      1                      1                      1 
##             OKAYAMA, T            OLIVER, J L          PARBHANE, R V 
##                      1                      1                      1 
##                PARK, J           PASQUIER, CM               PAZOS, F 
##                      1                      1                      1 
##              PEGG, S C             PESHKIN, L            PFEIFFER, T 
##                      1                      1                      1 
##             PICKERT, L            POCOCK, M R           PODLICH, D W 
##                      1                      1                      1 
##       PONOMARENKO, M P         PONOMAREV, A L                POOK, S 
##                      2                      1                      1 
##              POSADA, D            PROUTSKI, V             RAMPONE, S 
##                      1                      1                      1 
##               RAREY, M              REBHAN, M             REDDY, B V 
##                      1                      1                      1 
##             REDDY, V S           RIGOUTSOS, I            RIIKONEN, P 
##                      1                      1                      1 
##               RIMER, M     RODRIGUEZ-TOM茅, P              ROGNES, T 
##                      1                      1                      1 
##               ROZAS, J           SALAMOV, A A             SANKOFF, D 
##                      1                      1                      1 
##              SAQI, M A         SCH盲FFER, A A             SCORDIS, P 
##                      1                      1                      1 
##              SELBIG, J            SELUJA, G A              SENGER, M 
##                      1                      1                      1 
##             SEROV, V N               SHATS, O            SNEATH, P H 
##                      1                      1                      1 
##             SOBOLEV, V           SODERLUND, C          SOUTHERN, M R 
##                      1                      1                      1 
##               SPANG, R      SRINIVASARAO, G Y               STOYE, J 
##                      1                      1                      1 
##               SZE, S H            S谩NCHEZ, R           TABASKA, J E 
##                      1                      1                      1 
##             TAMAMES, J              TARNAS, C          TATUSOVA, T A 
##                      1                      1                      1 
##              TAYLOR, S            THIEFFRY, D            THOMAS, G H 
##                      1                      1                      1 
##          THOMPSON, J D           TH茅BAULT, P              TOMITA, M 
##                      1                      1                      1 
##             TRELLES, O             TSUNODA, T               ULIEL, S 
##                      1                      1                      1 
##            VARR茅, J S              WAGNER, A              WANG, H C 
##                      1                      1                      1 
##                 WEI, T             WEISSIG, H                WJST, M 
##                      1                      1                      1 
##            WORLEY, K C              WRIGHT, W                WU, C H 
##                      1                      1                      1 
##                WUJU, L                YADA, T                 YAN, M 
##                      1                      2                      1 
##                YUAN, J              YUAN, Y P             ZHANG, C T 
##                      1                      1                      1 
##               ZHANG, Z                 ZHU, J              ZIMMER, R 
##                      1                      2                      1
#View(table(fa))