pca-data_20160416_v2.txt

> pca
Principal Components Analysis
Call: principal(r = agg.data.clean, nfactors = 17, rotate = "none", 
    scores = TRUE)
Standardized loadings (pattern matrix) based upon correlation matrix
                                  PC1   PC2   PC3   PC4   PC5   PC6   PC7   PC8   PC9  PC10  PC11  PC12  PC13  PC14  PC15  PC16  PC17
alive.days                       0.73 -0.35  0.10 -0.04 -0.16 -0.07  0.04  0.18 -0.04 -0.16 -0.13  0.30  0.03  0.01  0.35 -0.12  0.00
average.downloads               -0.12  0.26  0.29 -0.18  0.28 -0.24  0.29  0.33  0.68  0.02 -0.11 -0.03  0.01  0.00  0.01 -0.01  0.00
total.commits                    0.63  0.51 -0.26  0.08 -0.08 -0.06 -0.02  0.03  0.05 -0.17  0.09 -0.04  0.01  0.46 -0.02  0.01  0.00
weekday.commits.percentage       0.19 -0.22 -0.01  0.12 -0.32  0.35 -0.58 -0.07  0.55  0.17  0.06  0.02  0.01  0.00  0.01  0.01  0.00
commit.pattern                   0.02  0.00 -0.09 -0.04 -0.44  0.55  0.68 -0.09  0.10  0.08 -0.04 -0.02  0.00  0.01 -0.01  0.01  0.00
closed.issues                    0.69  0.60 -0.18 -0.06  0.06  0.00 -0.04 -0.21  0.01  0.13 -0.17  0.01  0.00 -0.16  0.01 -0.05  0.03
total.issues                     0.71  0.59 -0.17 -0.06  0.06  0.00 -0.04 -0.20  0.01  0.12 -0.16  0.00  0.00 -0.13  0.01 -0.03 -0.03
average.issue.resolution.time   -0.55  0.41 -0.17 -0.08  0.18  0.15  0.02 -0.06  0.05  0.01  0.33  0.56  0.08 -0.01 -0.02 -0.02  0.00
top.contributors.contribution   -0.67  0.17 -0.21  0.40 -0.08 -0.20  0.03 -0.07  0.01  0.26 -0.31  0.11  0.01  0.06  0.17  0.25  0.00
average.commits.per.contributor  0.31  0.23 -0.31  0.56 -0.24 -0.15  0.07  0.46  0.02 -0.14  0.26 -0.04 -0.01 -0.22 -0.04  0.03  0.00
contributors                     0.79 -0.09  0.20 -0.30  0.17  0.16  0.01  0.07 -0.04 -0.08  0.19  0.01  0.01 -0.05  0.04  0.37  0.00
average.forks                   -0.06  0.42  0.73  0.16 -0.18  0.02 -0.04 -0.04 -0.07 -0.03  0.04  0.09 -0.46  0.01  0.00  0.00  0.00
average.stars                   -0.07  0.40  0.73  0.19 -0.17  0.04 -0.05 -0.03 -0.12 -0.03  0.00 -0.05  0.46  0.00  0.00 -0.01  0.00
last.commit.days                -0.58  0.42 -0.12 -0.03  0.26  0.39 -0.10  0.10 -0.05 -0.07  0.17 -0.31 -0.04 -0.01  0.31 -0.04  0.00
readme.word.count                0.44 -0.12  0.12  0.19  0.30  0.24  0.02  0.38 -0.20  0.62  0.01  0.04 -0.01  0.10 -0.04 -0.06  0.00
number.badges                    0.36 -0.29  0.13  0.35  0.20 -0.26  0.25 -0.50  0.16  0.17  0.39 -0.09  0.00  0.01  0.11 -0.04  0.00
has.test                         0.20 -0.19  0.05  0.54  0.48  0.39  0.03 -0.10  0.08 -0.39 -0.26  0.08  0.00  0.00 -0.07  0.01  0.00
                                h2       u2 com
alive.days                       1  5.6e-16 3.1
average.downloads                1  2.8e-15 4.0
total.commits                    1 -1.1e-15 3.6
weekday.commits.percentage       1  1.0e-15 4.3
commit.pattern                   1  1.2e-15 2.9
closed.issues                    1  2.2e-16 2.7
total.issues                     1  0.0e+00 2.6
average.issue.resolution.time    1 -2.2e-16 4.3
top.contributors.contribution    1 -2.2e-16 4.1
average.commits.per.contributor  1  0.0e+00 5.7
contributors                     1 -2.2e-16 2.4
average.forks                    1  8.9e-16 2.8
average.stars                    1  1.1e-16 2.8
last.commit.days                 1 -1.1e-15 5.2
readme.word.count                1  0.0e+00 4.5
number.badges                    1 -2.2e-16 7.3
has.test                         1 -2.0e-15 5.2

                       PC1  PC2  PC3  PC4  PC5  PC6  PC7  PC8  PC9 PC10 PC11 PC12 PC13 PC14 PC15 PC16 PC17
SS loadings           4.14 2.12 1.55 1.15 1.04 1.02 0.97 0.89 0.88 0.79 0.66 0.54 0.43 0.32 0.27 0.22    0
Proportion Var        0.24 0.12 0.09 0.07 0.06 0.06 0.06 0.05 0.05 0.05 0.04 0.03 0.03 0.02 0.02 0.01    0
Cumulative Var        0.24 0.37 0.46 0.53 0.59 0.65 0.71 0.76 0.81 0.86 0.89 0.93 0.95 0.97 0.99 1.00    1
Proportion Explained  0.24 0.12 0.09 0.07 0.06 0.06 0.06 0.05 0.05 0.05 0.04 0.03 0.03 0.02 0.02 0.01    0
Cumulative Proportion 0.24 0.37 0.46 0.53 0.59 0.65 0.71 0.76 0.81 0.86 0.89 0.93 0.95 0.97 0.99 1.00    1

Mean item complexity =  4
Test of the hypothesis that 17 components are sufficient.

The root mean square of the residuals (RMSR) is  0 
 with the empirical chi square  0  with prob <  NA 

Fit based upon off diagonal values = 1