of Irreproducible Research!
Description of Statistical Computation | |
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Author's title | |
Author | *The author of this computation has been verified* |
R Software Module | Rscript (source code is shown below) |
Title produced by software | R console |
Date of computation | Tue, 25 May 2010 12:54:06 +0000 |
Cite this page as follows | Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2010/May/25/t1274792047ryasw6b110c9xey.htm/, Retrieved Wed, 08 May 2024 05:40:16 +0000 |
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=76381, Retrieved Wed, 08 May 2024 05:40:16 +0000 | |
QR Codes: | |
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Original text written by user: | Warning: you must have the RWeka R package installed to reproduce this computation. The RWeka package requires Sun Java on your machine! |
IsPrivate? | No (this computation is public) |
User-defined keywords | ICEL 2010, peer review, regression tree, evaluation, social constructivism, reproducible computing, educational technology, e-learning |
Estimated Impact | 167 |
Tree of Dependent Computations | |
Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data) | |
- [R console] [Reviewing Peer Re...] [2010-05-25 12:54:06] [d76b387543b13b5e3afd8ff9e5fdc89f] [Current] | |
Feedback Forum | |
Post a new message | |
Dataset | |
Tables (Output of Computation) | |
> { + library(RWeka) + con <- url('https://automated.biganalytics.eu/download/ICEL2010') + load(con) + close(con) + y <- y[!is.na(y$X1), ] + .... [TRUNCATED] Min. 1st Qu. Median Mean 3rd Qu. Max. 0.000 3.000 3.500 3.346 4.000 6.000 J48 pruned tree ------------------ x$NNZFG <= 71 | x$BC <= 44 | | x$Year <= 0 | | | x$Pop <= 0 | | | | x$NNZFG <= 36 | | | | | x$BC <= 6: Fail (16.0/4.0) | | | | | x$BC > 6: Pass (3.0) | | | | x$NNZFG > 36: Pass (11.0/1.0) | | | x$Pop > 0: Pass (20.0/2.0) | | x$Year > 0 | | | x$AFL <= 212.17: Fail (31.0/5.0) | | | x$AFL > 212.17 | | | | x$Pop <= 0 | | | | | x$AFL <= 280.35: Fail (4.0/1.0) | | | | | x$AFL > 280.35: Pass (5.0) | | | | x$Pop > 0: Pass (5.0/1.0) | x$BC > 44: Pass (27.0/3.0) x$NNZFG > 71: Pass (389.0/25.0) Number of Leaves : 10 Size of the tree : 19 === Summary === Correctly Classified Instances 469 91.7808 % Incorrectly Classified Instances 42 8.2192 % Kappa statistic 0.6162 Mean absolute error 0.1468 Root mean squared error 0.2709 Relative absolute error 59.7092 % Root relative squared error 77.4279 % Coverage of cases (0.95 level) 100 % Mean rel. region size (0.95 level) 99.2172 % Total Number of Instances 511 === Confusion Matrix === a b <-- classified as 41 32 | a = Fail 10 428 | b = Pass === 10 Fold Cross Validation === === Summary === Correctly Classified Instances 445 87.0841 % Incorrectly Classified Instances 66 12.9159 % Kappa statistic 0.4046 Mean absolute error 0.1823 Root mean squared error 0.3301 Relative absolute error 74.0901 % Root relative squared error 94.3177 % Coverage of cases (0.95 level) 98.4344 % Mean rel. region size (0.95 level) 94.5205 % Total Number of Instances 511 === Confusion Matrix === a b <-- classified as 30 43 | a = Fail 23 415 | b = Pass | |
Figures (Output of Computation) | |
Input Parameters & R Code | |
Parameters (Session): | |
Parameters (R input): | |
R code (body of R function): | |
{ |