MCA

library(ca)
data("wg93")
head(wg93)
##   A B C D sex age edu
## 1 2 3 4 3   2   2   3
## 2 3 4 2 3   1   3   4
## 3 2 3 2 4   2   3   2
## 4 2 2 2 2   1   2   3
## 5 3 3 3 3   1   5   2
## 6 3 4 4 5   1   3   2
str(wg93)
## 'data.frame':    871 obs. of  7 variables:
##  $ A  : Factor w/ 5 levels "1","2","3","4",..: 2 3 2 2 3 3 3 3 3 3 ...
##  $ B  : Factor w/ 5 levels "1","2","3","4",..: 3 4 3 2 3 4 4 4 2 3 ...
##  $ C  : Factor w/ 5 levels "1","2","3","4",..: 4 2 2 2 3 4 2 4 2 2 ...
##  $ D  : Factor w/ 5 levels "1","2","3","4",..: 3 3 4 2 3 5 4 2 1 2 ...
##  $ sex: Factor w/ 2 levels "1","2": 2 1 2 1 1 1 2 1 1 1 ...
##  $ age: Factor w/ 6 levels "1","2","3","4",..: 2 3 3 2 5 3 5 3 3 3 ...
##  $ edu: Factor w/ 6 levels "1","2","3","4",..: 3 4 2 3 2 2 2 3 2 2 ...
mj= mjca(wg93) ### by default 'adjusted'
print(mj)
## 
##  Eigenvalues:
##            1        2        3        4        5        6        7       
## Value      0.028924 0.017038 0.005828 0.004047 0.002142 0.000845 0.000676
## Percentage 36.55%   21.53%   7.36%    5.11%    2.71%    1.07%    0.85%   
##            8        9        10      11      12   
## Value      0.000383 0.000283 8.8e-05 2.9e-05 1e-06
## Percentage 0.48%    0.36%    0.11%   0.04%   0%   
## 
## 
##  Columns:
##              A:1       A:2       A:3       A:4       A:5      B:1       B:2
## Mass    0.019518  0.052813  0.033459  0.029195  0.007873 0.011645  0.028539
## ChiDist 1.023569  0.518107  0.726500  0.798611  1.696104 1.412284  0.795195
## Inertia 0.020449  0.014177  0.017660  0.018620  0.022648 0.023227  0.018046
## Dim. 1  1.800225  0.792994 -0.335771 -1.430754 -3.049984 2.728791  1.181908
## Dim. 2  1.630097 -0.141322 -1.672746  0.451071  2.343200 2.754734 -0.663293
##               B:3       B:4       B:5      C:1       C:2       C:3       C:4
## Mass     0.033623  0.046088  0.022962 0.024930  0.051829  0.032311  0.025258
## ChiDist  0.708551  0.581371  0.989433 0.947690  0.526559  0.745559  0.879602
## Inertia  0.016880  0.015577  0.022479 0.022390  0.014370  0.017960  0.019542
## Dim. 1   0.614157 -0.844770 -2.056557 2.104639  0.546124 -0.548248 -1.673899
## Dim. 2  -1.020932 -0.507231  1.940356 1.990773 -0.722204 -1.445168  0.359315
##               C:5      D:1       D:2       D:3       D:4      D:5     sex:1
## Mass     0.008529 0.009841  0.038052  0.033131  0.037067 0.024766  0.070034
## ChiDist  1.629019 1.454722  0.649295  0.730987  0.653807 0.869302  0.401091
## Inertia  0.022633 0.020825  0.016042  0.017703  0.015845 0.018716  0.011267
## Dim. 1  -2.436440 0.993395 -0.124440 -0.088532 -0.183119 0.188971 -0.499006
## Dim. 2   2.980438 2.578626 -0.370493 -1.449258 -0.208603 1.795570 -0.323403
##            sex:2     age:1     age:2     age:3     age:4     age:5    age:6
## Mass    0.072823  0.014925  0.034443  0.025914  0.023946  0.020338 0.023290
## ChiDist 0.385734  1.177718  0.694911  0.820879  0.857816  0.949948 0.905899
## Inertia 0.010835  0.020702  0.016633  0.017462  0.017621  0.018353 0.019113
## Dim. 1  0.479900 -0.814329 -0.613569 -0.252714 -0.104129  0.403346 1.465283
## Dim. 2  0.311020  0.272877  0.436093 -0.041419 -0.456510 -0.445403 0.084602
##            edu:1     edu:2     edu:3     edu:4     edu:5     edu:6
## Mass    0.006233  0.061998  0.039692  0.015417  0.008037  0.011481
## ChiDist 1.835104  0.468936  0.626113  1.167358  1.578564  1.315351
## Inertia 0.020989  0.013633  0.015560  0.021010  0.020026  0.019864
## Dim. 1  0.770367  0.868600 -0.315998 -1.395753 -1.198734 -1.302775
## Dim. 2  0.163902 -0.259166 -0.438837  1.225141  0.797539  0.624175
plot(mj)

summary(mj)
## 
## Principal inertias (eigenvalues):
## 
##  dim    value      %   cum%   scree plot               
##  1      0.028924  36.5  36.5  ************             
##  2      0.017038  21.5  58.1  *******                  
##  3      0.005828   7.4  65.4  **                       
##  4      0.004047   5.1  70.6  **                       
##  5      0.002142   2.7  73.3  *                        
##  6      0.000845   1.1  74.3                           
##  7      0.000676   0.9  75.2                           
##  8      0.000383   0.5  75.7                           
##  9      0.000283   0.4  76.0                           
##  10     8.8e-050   0.1  76.1                           
##  11     2.9e-050   0.0  76.2                           
##  12     1e-06000   0.0  76.2                           
##         -------- -----                                 
##  Total: 0.079144                                       
## 
## 
## Columns:
##       name   mass  qlt  inr    k=1 cor ctr    k=2 cor ctr  
## 1  |   A:1 |   20  822   33 |  306 554  63 |  213 268  52 |
## 2  |   A:2 |   53  639   23 |  135 627  33 |  -18  12   1 |
## 3  |   A:3 |   33  719   29 |  -57  46   4 | -218 673  94 |
## 4  |   A:4 |   29  658   30 | -243 622  60 |   59  36   6 |
## 5  |   A:5 |    8  727   37 | -519 540  73 |  306 188  43 |
## 6  |   B:1 |   12  768   38 |  464 480  87 |  360 288  88 |
## 7  |   B:2 |   29  683   29 |  201 576  40 |  -87 107  13 |
## 8  |   B:3 |   34  648   27 |  104 247  13 | -133 401  35 |
## 9  |   B:4 |   46  564   25 | -144 465  33 |  -66  99  12 |
## 10 |   B:5 |   23  686   36 | -350 450  97 |  253 236  86 |
## 11 |   C:1 |   25  754   36 |  358 494 110 |  260 260  99 |
## 12 |   C:2 |   52  569   23 |   93 281  15 |  -94 289  27 |
## 13 |   C:3 |   32  566   29 |  -93 111  10 | -189 455  67 |
## 14 |   C:4 |   25  657   32 | -285 640  71 |   47  17   3 |
## 15 |   C:5 |    9  686   37 | -414 365  51 |  389 321  76 |
## 16 |   D:1 |   10  656   34 |  169 132  10 |  337 524  65 |
## 17 |   D:2 |   38   85   26 |  -21  14   1 |  -48  71   5 |
## 18 |   D:3 |   33  504   29 |  -15   3   0 | -189 501  70 |
## 19 |   D:4 |   37   74   26 |  -31  42   1 |  -27  32   2 |
## 20 |   D:5 |   25  644   30 |   32  12   1 |  234 632  80 |
## 21 | sex:1 |   70  625   18 |  -85 501  17 |  -42 124   7 |
## 22 | sex:2 |   73  625   18 |   82 501  17 |   41 124   7 |
## 23 | age:1 |   15  108   33 | -138 101  10 |   36   7   1 |
## 24 | age:2 |   34  364   27 | -104 281  13 |   57  84   7 |
## 25 | age:3 |   26   55   28 |  -43  54   2 |   -5   1   0 |
## 26 | age:4 |   24  125   28 |  -18  10   0 |  -60 115   5 |
## 27 | age:5 |   20  166   30 |   69  96   3 |  -58  69   4 |
## 28 | age:6 |   23  611   31 |  249 610  50 |   11   1   0 |
## 29 | edu:1 |    6   64   34 |  131  62   4 |   21   2   0 |
## 30 | edu:2 |   62  586   22 |  148 557  47 |  -34  29   4 |
## 31 | edu:3 |   40  255   25 |  -54 120   4 |  -57 136   8 |
## 32 | edu:4 |   15  386   34 | -237 266  30 |  160 121  23 |
## 33 | edu:5 |    8  471   32 | -204 374  12 |  104  97   5 |
## 34 | edu:6 |   11  500   32 | -222 441  19 |   81  60   4 |

MJCA

mj= mjca(wg93, lambda="JCA")
print(mj)
## 
##  Eigenvalues:
##            1        2        3        4        5        6        7       
## Value      0.038461 0.022476 0.004907 0.003489 0.001748 0.000857 0.000698
## Percentage NA%      NA%      NA%      NA%      NA%      NA%      NA%     
##            8        9        10       11    12     
## Value      0.000664 0.000309 0.000161 9e-05 6.2e-05
## Percentage NA%      NA%      NA%      NA%   NA%    
## 
## 
##  Columns:
##               A:1       A:2      A:3       A:4       A:5       B:1       B:2
## Mass     0.019518  0.052813 0.033459  0.029195  0.007873  0.011645  0.028539
## ChiDist  1.023569  0.518107 0.726500  0.798611  1.696104  1.412284  0.795195
## Inertia  0.020449  0.014177 0.017660  0.018620  0.022648  0.023227  0.018046
## Dim. 1  -1.782567 -0.759417 0.277099  1.431463  3.027691 -2.885516 -1.269201
## Dim. 2  -1.385122  0.169184 1.482822 -0.468861 -2.264293 -2.403163  0.793002
##               B:3      B:4       B:5       C:1       C:2      C:3       C:4
## Mass     0.033623 0.046088  0.022962  0.024930  0.051829 0.032311  0.025258
## ChiDist  0.708551 0.581371  0.989433  0.947690  0.526559 0.745559  0.879602
## Inertia  0.016880 0.015577  0.022479  0.022390  0.014370 0.017960  0.019542
## Dim. 1  -0.740263 0.854859  2.408938 -2.439647 -0.506321 0.685860  1.756452
## Dim. 2   1.089168 0.420548 -2.205795 -2.315422  0.713852 1.639972 -0.218680
##               C:5       D:1      D:2      D:3      D:4       D:5    sex:1
## Mass     0.008529  0.009841 0.038052 0.033131 0.037067  0.024766 0.070034
## ChiDist  1.629019  1.454722 0.649295 0.730987 0.653807  0.869302 0.401091
## Inertia  0.022633  0.020825 0.016042 0.017703 0.015845  0.018716 0.011267
## Dim. 1   2.407997 -0.837419 0.144092 0.139614 0.135887 -0.278787 0.383997
## Dim. 2  -3.135208 -2.593653 0.320436 1.468640 0.225561 -1.764000 0.221930
##             sex:2     age:1     age:2     age:3    age:4     age:5     age:6
## Mass     0.072823  0.014925  0.034443  0.025914 0.023946  0.020338  0.023290
## ChiDist  0.385734  1.177718  0.694911  0.820879 0.857816  0.949948  0.905899
## Inertia  0.010835  0.020702  0.016633  0.017462 0.017621  0.018353  0.019113
## Dim. 1  -0.369294  0.585910  0.437420  0.174132 0.084674 -0.267665 -1.069443
## Dim. 2  -0.213433 -0.102002 -0.302311 -0.002521 0.280797  0.306286 -0.040914
##             edu:1     edu:2    edu:3     edu:4     edu:5     edu:6
## Mass     0.006233  0.061998 0.039692  0.015417  0.008037  0.011481
## ChiDist  1.835104  0.468936 0.626113  1.167358  1.578564  1.315351
## Inertia  0.020989  0.013633 0.015560  0.021010  0.020026  0.019864
## Dim. 1  -0.588403 -0.660892 0.215749  1.052435  0.928278  1.079296
## Dim. 2   0.088569  0.221036 0.329008 -0.924384 -0.693470 -0.652358
plot(mj)

summary(mj)
## 
## Principal inertias (eigenvalues):
## 
##  dim    value   
##  1      0.038461
##  2      0.022476
##  3      0.004907
##  4      0.003489
##  5      0.001748
##  6      0.000857
##  7      0.000698
##  8      0.000664
##  9      0.000309
##  10     0.000161
##  11     9e-05000
##  12     6.2e-050
##         --------
##  Total: 0.084311
## 
##  Diagonal inertia discounted from eigenvalues: 0.0164741
##  Percentage explained by JCA in 2 dimensions: 65.5%
##  (Eigenvalues are not nested)
##  [Iterations in JCA: 31 , epsilon = 9.83e-05]
## 
## 
## Columns:
##       name   mass  inr    k=1  k=2   cor ctr  
## 1  |   A:1 |   20   33 | -350 -208 | 920  59 |
## 2  |   A:2 |   53   23 | -149   25 | 706  21 |
## 3  |   A:3 |   33   29 |   54  222 | 729  33 |
## 4  |   A:4 |   29   30 |  281  -70 | 789  42 |
## 5  |   A:5 |    8   37 |  594 -339 | 847  64 |
## 6  |   B:1 |   12   38 | -566 -360 | 899  91 |
## 7  |   B:2 |   29   29 | -249  119 | 791  31 |
## 8  |   B:3 |   34   27 | -145  163 | 803  23 |
## 9  |   B:4 |   46   25 |  168   63 | 620  24 |
## 10 |   B:5 |   23   36 |  472 -331 | 890 107 |
## 11 |   C:1 |   25   36 | -478 -347 | 952 119 |
## 12 |   C:2 |   52   23 |  -99  107 | 618  19 |
## 13 |   C:3 |   32   29 |  135  246 | 706  34 |
## 14 |   C:4 |   25   32 |  344  -33 | 784  48 |
## 15 |   C:5 |    9   37 |  472 -470 | 843  65 |
## 16 |   D:1 |   10   34 | -164 -389 | 750  31 |
## 17 |   D:2 |   38   26 |   28   48 |  88   2 |
## 18 |   D:3 |   33   29 |   27  220 | 621  28 |
## 19 |   D:4 |   37   26 |   27   34 |  77   1 |
## 20 |   D:5 |   25   30 |  -55 -264 | 755  31 |
## 21 | sex:1 |   70   18 |   75   33 | 535  10 |
## 22 | sex:2 |   73   18 |  -72  -32 | 535  10 |
## 23 | age:1 |   15   33 |  115  -15 |  79   4 |
## 24 | age:2 |   34   27 |   86  -45 | 272   7 |
## 25 | age:3 |   26   28 |   34    0 |  38   1 |
## 26 | age:4 |   24   28 |   17   42 |  77   1 |
## 27 | age:5 |   20   30 |  -52   46 | 113   2 |
## 28 | age:6 |   23   31 | -210   -6 | 484  22 |
## 29 | edu:1 |    6   34 | -115   13 |  53   2 |
## 30 | edu:2 |   62   22 | -130   33 | 489  23 |
## 31 | edu:3 |   40   25 |   42   49 | 202   4 |
## 32 | edu:4 |   15   34 |  206 -139 | 310  20 |
## 33 | edu:5 |    8   32 |  182 -104 | 420   7 |
## 34 | edu:6 |   11   32 |  212  -98 | 519  13 |