library(tidyverse)
library(gtsummary)

匯入資料並命名

dta <- read.csv("ncku_prof_V6.csv", h=T, stringsAsFactors = TRUE)

查看前六筆資料

head(dta)
##      ID Initial Citation H.id Gender Degree Rank College Dept Grads  FPY
## 1 10001     YCC      305    9      M      D    3     ENG  ESC     3 2013
## 2 10002     CYC      355   11      M      D    2     ENG  ESC    10 2008
## 3 10003     HBC     3452   10      M      D    1     ENG  ESC     0 2011
## 4 10004     HHC    15808   65      M      O    1     ENG  ESC    92 1997
## 5 10005     JSC      280   10      F      O    2     ENG  ESC    25 2011
## 6 10006     MYC     2506   22      M      D    2     ENG  ESC    41 2002
##   Articles StuApp Colprof
## 1       30    169     309
## 2       22    169     309
## 3       14    169     309
## 4      349    169     309
## 5       23    169     309
## 6       90    169     309

檢視資料結構

str(dta)
## 'data.frame':    460 obs. of  14 variables:
##  $ ID      : int  10001 10002 10003 10004 10005 10006 10007 10008 10009 10010 ...
##  $ Initial : Factor w/ 347 levels "BCT","BHC","BLC",..: 308 60 81 90 145 201 293 176 198 276 ...
##  $ Citation: int  305 355 3452 15808 280 2506 672 5735 1118 685 ...
##  $ H.id    : int  9 11 10 65 10 22 14 40 19 14 ...
##  $ Gender  : Factor w/ 2 levels "F","M": 2 2 2 2 1 2 2 2 2 2 ...
##  $ Degree  : Factor w/ 2 levels "D","O": 1 1 1 2 2 1 1 1 2 1 ...
##  $ Rank    : int  3 2 1 1 2 2 1 1 2 1 ...
##  $ College : Factor w/ 5 levels "ENG","LIB","MNG",..: 1 1 1 1 1 1 1 1 1 1 ...
##  $ Dept    : Factor w/ 25 levels "ACC","BAD","CEN",..: 10 10 10 10 10 10 10 10 10 10 ...
##  $ Grads   : int  3 10 0 92 25 41 36 54 74 195 ...
##  $ FPY     : int  2013 2008 2011 1997 2011 2002 2008 2001 1994 1991 ...
##  $ Articles: int  30 22 14 349 23 90 36 123 26 70 ...
##  $ StuApp  : int  169 169 169 169 169 169 169 169 169 169 ...
##  $ Colprof : int  309 309 309 309 309 309 309 309 309 309 ...

Assessment 1

bdta <- dta %>%
  filter(H.id > 12) %>%
  select(H.id, Gender, College, Rank, Degree, Grads)

查看最後六筆資料

tail(bdta)
##     H.id Gender College Rank Degree Grads
## 187   14      F     MNG    2      D    17
## 188   13      M     MNG    1      O    89
## 189   15      M     MNG    2      D    27
## 190   17      M     MNG    1      D    26
## 191   27      M     MNG    1      D    23
## 192   14      M     MNG    2      D     9

Assessment 2

newdta <-dta %>%
  filter(!is.na(FPY)) %>%
  mutate(academicy = 2022 - FPY, Grads_m = Grads / academicy) %>%
 select(H.id, Gender, Degree, Rank, College, Grads, academicy, Grads_m) 

檢視前六筆資料

head(newdta)
##   H.id Gender Degree Rank College Grads academicy   Grads_m
## 1    9      M      D    3     ENG     3         9 0.3333333
## 2   11      M      D    2     ENG    10        14 0.7142857
## 3   10      M      D    1     ENG     0        11 0.0000000
## 4   65      M      O    1     ENG    92        25 3.6800000
## 5   10      F      O    2     ENG    25        11 2.2727273
## 6   22      M      D    2     ENG    41        20 2.0500000

Assessment 3

遞減排序

dta %>%
    group_by(College, Gender, Rank, Degree) %>%
    summarize(mean_H.id = mean(H.id, na.rm = TRUE),
              sd_H.id = sd(H.id),
              v_H.id = var(H.id),
              max_H.id = max(H.id),
              min_H.id = min(H.id),
              count = n())%>%
  arrange(desc(mean_H.id))
## # A tibble: 53 × 10
## # Groups:   College, Gender, Rank [30]
##    College Gender  Rank Degree mean_H.id sd_H.id v_H.id max_H.id min_H.id count
##    <fct>   <fct>  <int> <fct>      <dbl>   <dbl>  <dbl>    <int>    <int> <int>
##  1 ENG     F          1 D           34     10.4   108         46       28     3
##  2 ENG     M          1 D           24.4   11.0   121.        54        6    28
##  3 ENG     M          1 O           24.2   13.9   192.        92        3    76
##  4 SCI     M          1 D           21     16.1   258         39        6     4
##  5 ENG     F          1 O           19.5    9.71   94.3       32       10     4
##  6 SCI     M          1 O           18.8   15.2   231.        58        3    24
##  7 SCI     F          1 O           18.2   14.4   206.        34        3     5
##  8 ENG     M          2 D           17.3    6.81   46.4       40       10    20
##  9 MNG     M          1 D           16      6.48   42         27        8     6
## 10 MNG     F          1 O           15.2    8.54   72.9       27        8     4
## # … with 43 more rows

遞增排序

dta %>%
    group_by(College, Gender, Rank, Degree) %>%
    summarize(mean_H.id = mean(H.id, na.rm = TRUE),
              sd_H.id = sd(H.id),
              v_H.id = var(H.id),
              max_H.id = max(H.id),
              min_H.id = min(H.id),
              count = n())%>%
  arrange((mean_H.id))
## # A tibble: 53 × 10
## # Groups:   College, Gender, Rank [30]
##    College Gender  Rank Degree mean_H.id sd_H.id v_H.id max_H.id min_H.id count
##    <fct>   <fct>  <int> <fct>      <dbl>   <dbl>  <dbl>    <int>    <int> <int>
##  1 LIB     F          2 D          0       0      0            0        0     6
##  2 LIB     F          3 D          0       0      0            0        0     2
##  3 LIB     M          1 D          0       0      0            0        0     4
##  4 LIB     M          3 D          0      NA     NA            0        0     1
##  5 LIB     M          2 D          0.167   0.408  0.167        1        0     6
##  6 LIB     F          3 O          0.5     0.707  0.5          1        0     2
##  7 LIB     M          2 O          0.727   1.19   1.42         3        0    11
##  8 LIB     F          2 O          0.833   0.983  0.967        2        0     6
##  9 SSC     F          3 D          1      NA     NA            1        1     1
## 10 LIB     F          1 D          1.5     0.707  0.5          2        1     2
## # … with 43 more rows

3-2

1. H.id最高: 工學院/女性/教授/本土博士; 最低: 文學院/女性/副教授/本土。

2. 此論述不恰當,因為雖然工學院/女生/教授/本土博士群組的分數最高,但他的人數只有三人,因此不能過度推論。

3. 5個學院中,文學院教授的學術產能最低,且排名最低的三筆完全沒有學術產能。

Assessment 4

dta|>
  select(College, Gender, Degree, Rank) |>
  tbl_summary(by = College)
Characteristic ENG, N = 1841 LIB, N = 631 MNG, N = 841 SCI, N = 721 SSC, N = 571
Gender
F 17 (9.2%) 34 (54%) 24 (29%) 14 (19%) 22 (39%)
M 167 (91%) 29 (46%) 60 (71%) 58 (81%) 35 (61%)
Degree
D 63 (34%) 21 (33%) 25 (30%) 16 (22%) 13 (23%)
O 121 (66%) 42 (67%) 59 (70%) 56 (78%) 44 (77%)
Rank
1 111 (60%) 29 (46%) 36 (43%) 36 (50%) 28 (49%)
2 44 (24%) 29 (46%) 27 (32%) 27 (38%) 22 (39%)
3 29 (16%) 5 (7.9%) 21 (25%) 9 (12%) 7 (12%)
1 n (%)

結論

5個學院中,男教授的比例皆大於女性,尤其工學院的比例差距最大; 文學院最小。

5個學院教授博士學位的比例留學大於本國,其中理學院的比例差距最大; 工學院最小。

5個學院的教授職等人數/比例依序為: 教授> 副教授> 助理教授。