diff --git a/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/access/vector/CachedExtractVectorNode.java b/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/access/vector/CachedExtractVectorNode.java
index 4ab4126616010c6acaae4d804942752ec14601e6..381690d7202e9c2238c7482b2f34194e52f1b87c 100644
--- a/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/access/vector/CachedExtractVectorNode.java
+++ b/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/access/vector/CachedExtractVectorNode.java
@@ -39,6 +39,7 @@ import com.oracle.truffle.r.nodes.attributes.SpecialAttributesFunctions.GetDimNa
 import com.oracle.truffle.r.nodes.attributes.SpecialAttributesFunctions.GetNamesAttributeNode;
 import com.oracle.truffle.r.nodes.attributes.SpecialAttributesFunctions.SetDimAttributeNode;
 import com.oracle.truffle.r.nodes.attributes.SpecialAttributesFunctions.SetDimNamesAttributeNode;
+import com.oracle.truffle.r.nodes.binary.BoxPrimitiveNode;
 import com.oracle.truffle.r.nodes.profile.AlwaysOnBranchProfile;
 import com.oracle.truffle.r.nodes.profile.VectorLengthProfile;
 import com.oracle.truffle.r.runtime.RRuntime;
@@ -80,6 +81,8 @@ final class CachedExtractVectorNode extends CachedVectorNode {
     @Child private GetDimNamesAttributeNode getDimNamesNode;
     @Child private GetNamesAttributeNode getNamesNode;
     @Child private GetNamesAttributeNode getNamesFromDimNamesNode;
+    @Child private BoxPrimitiveNode boxOldDimNames;
+    @Child private BoxPrimitiveNode boxNewDimName;
     @Children private final CachedExtractVectorNode[] extractNames;
     @Children private final CachedExtractVectorNode[] extractNamesAlternative;
 
@@ -280,7 +283,17 @@ final class CachedExtractVectorNode extends CachedVectorNode {
                     } else if (positionsCheckNode.isEmptyPosition(i, positions[i])) {
                         result = RNull.instance;
                     } else {
-                        result = extract(i, (RAbstractStringVector) RRuntime.asAbstractVector(dataAt), positions[i], positionProfile[i]);
+                        if (boxOldDimNames == null) {
+                            CompilerDirectives.transferToInterpreterAndInvalidate();
+                            boxOldDimNames = insert(BoxPrimitiveNode.create());
+                        }
+                        if (boxNewDimName == null) {
+                            CompilerDirectives.transferToInterpreterAndInvalidate();
+                            boxNewDimName = insert(BoxPrimitiveNode.create());
+                        }
+                        RAbstractStringVector originalDimName = (RAbstractStringVector) boxOldDimNames.execute(dataAt);
+                        RAbstractStringVector newDimName = (RAbstractStringVector) boxNewDimName.execute(extract(i, originalDimName, positions[i], positionProfile[i]));
+                        result = newDimName.materialize();
                     }
                     newDimNames[dimIndex] = result;
                     if (newDimNamesNames != null) {
diff --git a/com.oracle.truffle.r.test.packages/importantPackages b/com.oracle.truffle.r.test.packages/importantPackages
index f285b70cb0ca826994786003efe45fdc6c15ba0f..84d401aceeb7cda77c0c1a3ff67012210c98303c 100644
--- a/com.oracle.truffle.r.test.packages/importantPackages
+++ b/com.oracle.truffle.r.test.packages/importantPackages
@@ -1,183 +1,182 @@
-abind,1.4-5,https://cloud.r-project.org/src/contrib/abind_1.4-5.tar.gz,
-acepack,1.4.1,https://cloud.r-project.org/src/contrib/acepack_1.4.1.tar.gz,
-afex,0.18-0,https://cloud.r-project.org/src/contrib/afex_0.18-0.tar.gz,
-anomalyDetection,0.2.4,https://cloud.r-project.org/src/contrib/anomalyDetection_0.2.4.tar.gz,
-assertthat,0.2.0,https://cloud.r-project.org/src/contrib/assertthat_0.2.0.tar.gz,
-backports,1.1.1,https://cloud.r-project.org/src/contrib/backports_1.1.1.tar.gz,
-base64enc,0.1-3,https://cloud.r-project.org/src/contrib/base64enc_0.1-3.tar.gz,
-BH,1.65.0-1,https://cloud.r-project.org/src/contrib/BH_1.65.0-1.tar.gz,
-bindr,0.1,https://cloud.r-project.org/src/contrib/bindr_0.1.tar.gz,
-bindrcpp,0.2,https://cloud.r-project.org/src/contrib/bindrcpp_0.2.tar.gz,
-bitops,1.0-6,https://cloud.r-project.org/src/contrib/bitops_1.0-6.tar.gz,
-broom,0.4.3,https://cloud.r-project.org/src/contrib/broom_0.4.3.tar.gz,
-car,2.1-6,https://cloud.r-project.org/src/contrib/car_2.1-6.tar.gz,
-caret,6.0-78,https://cloud.r-project.org/src/contrib/caret_6.0-78.tar.gz,
-caTools,1.17.1,https://cloud.r-project.org/src/contrib/caTools_1.17.1.tar.gz,
-cellranger,1.1.0,https://cloud.r-project.org/src/contrib/cellranger_1.1.0.tar.gz,
-checkmate,1.8.5,https://cloud.r-project.org/src/contrib/checkmate_1.8.5.tar.gz,
-class,7.3-14,https://cloud.r-project.org/src/contrib/class_7.3-14.tar.gz,
-cluster,2.0.6,https://cloud.r-project.org/src/contrib/cluster_2.0.6.tar.gz,
-coda,0.19-1,https://cloud.r-project.org/src/contrib/coda_0.19-1.tar.gz,
-codetools,0.2-15,https://cloud.r-project.org/src/contrib/codetools_0.2-15.tar.gz,
-coin,1.2-2,https://cloud.r-project.org/src/contrib/coin_1.2-2.tar.gz,
-colorspace,1.3-2,https://cloud.r-project.org/src/contrib/colorspace_1.3-2.tar.gz,
-compare,0.2-6,https://cloud.r-project.org/src/contrib/compare_0.2-6.tar.gz,
-crayon,1.3.4,https://cloud.r-project.org/src/contrib/crayon_1.3.4.tar.gz,
-curl,3.0,https://cloud.r-project.org/src/contrib/curl_3.0.tar.gz,
-CVST,0.2-1,https://cloud.r-project.org/src/contrib/CVST_0.2-1.tar.gz,
-data.table,1.10.4-3,https://cloud.r-project.org/src/contrib/data.table_1.10.4-3.tar.gz,
-DBI,0.7,https://cloud.r-project.org/src/contrib/DBI_0.7.tar.gz,
-ddalpha,1.3.1,https://cloud.r-project.org/src/contrib/ddalpha_1.3.1.tar.gz,
-DEoptimR,1.0-8,https://cloud.r-project.org/src/contrib/DEoptimR_1.0-8.tar.gz,
-devtools,1.13.4,https://cloud.r-project.org/src/contrib/devtools_1.13.4.tar.gz,
-dichromat,2.0-0,https://cloud.r-project.org/src/contrib/dichromat_2.0-0.tar.gz,
-digest,0.6.12,https://cloud.r-project.org/src/contrib/digest_0.6.12.tar.gz,
-dimRed,0.1.0,https://cloud.r-project.org/src/contrib/dimRed_0.1.0.tar.gz,
-doSNOW,1.0.15,https://cloud.r-project.org/src/contrib/doSNOW_1.0.15.tar.gz,
-dplyr,0.7.4,https://cloud.r-project.org/src/contrib/dplyr_0.7.4.tar.gz,
-DRR,0.0.2,https://cloud.r-project.org/src/contrib/DRR_0.0.2.tar.gz,
-DT,0.2,https://cloud.r-project.org/src/contrib/DT_0.2.tar.gz,
-e1071,1.6-8,https://cloud.r-project.org/src/contrib/e1071_1.6-8.tar.gz,
-estimability,1.2,https://cloud.r-project.org/src/contrib/estimability_1.2.tar.gz,
-evaluate,0.10.1,https://cloud.r-project.org/src/contrib/evaluate_0.10.1.tar.gz,
-foreach,1.4.3,https://cloud.r-project.org/src/contrib/foreach_1.4.3.tar.gz,
-forecast,8.2,https://cloud.r-project.org/src/contrib/forecast_8.2.tar.gz,
-foreign,0.8-69,https://cloud.r-project.org/src/contrib/foreign_0.8-69.tar.gz,
-Formula,1.2-2,https://cloud.r-project.org/src/contrib/Formula_1.2-2.tar.gz,
-gbm,2.1.3,https://cloud.r-project.org/src/contrib/gbm_2.1.3.tar.gz,
-gdata,2.18.0,https://cloud.r-project.org/src/contrib/gdata_2.18.0.tar.gz,
-ggnetwork,0.5.1,https://cloud.r-project.org/src/contrib/ggnetwork_0.5.1.tar.gz,
-ggplot2,2.2.1,https://cloud.r-project.org/src/contrib/ggplot2_2.2.1.tar.gz,
-git2r,0.19.0,https://cloud.r-project.org/src/contrib/git2r_0.19.0.tar.gz,
-glmnet,2.0-13,https://cloud.r-project.org/src/contrib/glmnet_2.0-13.tar.gz,
-glue,1.2.0,https://cloud.r-project.org/src/contrib/glue_1.2.0.tar.gz,
-gmp,0.5-13.1,https://cloud.r-project.org/src/contrib/gmp_0.5-13.1.tar.gz,
-gower,0.1.2,https://cloud.r-project.org/src/contrib/gower_0.1.2.tar.gz,
-gridExtra,2.3,https://cloud.r-project.org/src/contrib/gridExtra_2.3.tar.gz,
-gtable,0.2.0,https://cloud.r-project.org/src/contrib/gtable_0.2.0.tar.gz,
-gtools,3.5.0,https://cloud.r-project.org/src/contrib/gtools_3.5.0.tar.gz,
-highr,0.6,https://cloud.r-project.org/src/contrib/highr_0.6.tar.gz,
-Hmisc,4.0-3,https://cloud.r-project.org/src/contrib/Hmisc_4.0-3.tar.gz,
-hms,0.4.0,https://cloud.r-project.org/src/contrib/hms_0.4.0.tar.gz,
-htmlTable,1.11.0,https://cloud.r-project.org/src/contrib/htmlTable_1.11.0.tar.gz,
-htmltools,0.3.6,https://cloud.r-project.org/src/contrib/htmltools_0.3.6.tar.gz,
-htmlwidgets,0.9,https://cloud.r-project.org/src/contrib/htmlwidgets_0.9.tar.gz,
-httpuv,1.3.5,https://cloud.r-project.org/src/contrib/httpuv_1.3.5.tar.gz,
-httr,1.3.1,https://cloud.r-project.org/src/contrib/httr_1.3.1.tar.gz,
-ipred,0.9-6,https://cloud.r-project.org/src/contrib/ipred_0.9-6.tar.gz,
-iterators,1.0.8,https://cloud.r-project.org/src/contrib/iterators_1.0.8.tar.gz,
-jsonlite,1.5,https://cloud.r-project.org/src/contrib/jsonlite_1.5.tar.gz,
-kernlab,0.9-25,https://cloud.r-project.org/src/contrib/kernlab_0.9-25.tar.gz,
-KernSmooth,2.23-15,https://cloud.r-project.org/src/contrib/KernSmooth_2.23-15.tar.gz,
-knitr,1.17,https://cloud.r-project.org/src/contrib/knitr_1.17.tar.gz,
-labeling,0.3,https://cloud.r-project.org/src/contrib/labeling_0.3.tar.gz,
-lattice,0.20-35,https://cloud.r-project.org/src/contrib/lattice_0.20-35.tar.gz,
-latticeExtra,0.6-28,https://cloud.r-project.org/src/contrib/latticeExtra_0.6-28.tar.gz,
-lava,1.5.1,https://cloud.r-project.org/src/contrib/lava_1.5.1.tar.gz,
-lazyeval,0.2.1,https://cloud.r-project.org/src/contrib/lazyeval_0.2.1.tar.gz,
-lme4,1.1-14,https://cloud.r-project.org/src/contrib/lme4_1.1-14.tar.gz,
-lmerTest,2.0-36,https://cloud.r-project.org/src/contrib/lmerTest_2.0-36.tar.gz,
-lmtest,0.9-35,https://cloud.r-project.org/src/contrib/lmtest_0.9-35.tar.gz,
-lsmeans,2.27-61,https://cloud.r-project.org/src/contrib/lsmeans_2.27-61.tar.gz,
-lubridate,1.7.1,https://cloud.r-project.org/src/contrib/lubridate_1.7.1.tar.gz,
-magrittr,1.5,https://cloud.r-project.org/src/contrib/magrittr_1.5.tar.gz,
-markdown,0.8,https://cloud.r-project.org/src/contrib/markdown_0.8.tar.gz,
-MASS,7.3-47,https://cloud.r-project.org/src/contrib/MASS_7.3-47.tar.gz,
-Matrix,1.2-12,https://cloud.r-project.org/src/contrib/Matrix_1.2-12.tar.gz,
-MatrixModels,0.4-1,https://cloud.r-project.org/src/contrib/MatrixModels_0.4-1.tar.gz,
-mboost,2.8-1,https://cloud.r-project.org/src/contrib/mboost_2.8-1.tar.gz,
-memoise,1.1.0,https://cloud.r-project.org/src/contrib/memoise_1.1.0.tar.gz,
-mgcv,1.8-22,https://cloud.r-project.org/src/contrib/mgcv_1.8-22.tar.gz,
-mime,0.5,https://cloud.r-project.org/src/contrib/mime_0.5.tar.gz,
-minerva,1.4.7,https://cloud.r-project.org/src/contrib/minerva_1.4.7.tar.gz,
-miniUI,0.1.1,https://cloud.r-project.org/src/contrib/miniUI_0.1.1.tar.gz,
-minqa,1.2.4,https://cloud.r-project.org/src/contrib/minqa_1.2.4.tar.gz,
-mnormt,1.5-5,https://cloud.r-project.org/src/contrib/mnormt_1.5-5.tar.gz,
-ModelMetrics,1.1.0,https://cloud.r-project.org/src/contrib/ModelMetrics_1.1.0.tar.gz,
-modeltools,0.2-21,https://cloud.r-project.org/src/contrib/modeltools_0.2-21.tar.gz,
-multcomp,1.4-8,https://cloud.r-project.org/src/contrib/multcomp_1.4-8.tar.gz,
-munsell,0.4.3,https://cloud.r-project.org/src/contrib/munsell_0.4.3.tar.gz,
-mvoutlier,2.0.8,https://cloud.r-project.org/src/contrib/mvoutlier_2.0.8.tar.gz,
-mvtnorm,1.0-6,https://cloud.r-project.org/src/contrib/mvtnorm_1.0-6.tar.gz,
-naivebayes,0.9.1,https://cloud.r-project.org/src/contrib/naivebayes_0.9.1.tar.gz,
-nlme,3.1-131,https://cloud.r-project.org/src/contrib/nlme_3.1-131.tar.gz,
-nloptr,1.0.4,https://cloud.r-project.org/src/contrib/nloptr_1.0.4.tar.gz,
-nnet,7.3-12,https://cloud.r-project.org/src/contrib/nnet_7.3-12.tar.gz,
-numDeriv,2016.8-1,https://cloud.r-project.org/src/contrib/numDeriv_2016.8-1.tar.gz,
-openssl,0.9.9,https://cloud.r-project.org/src/contrib/openssl_0.9.9.tar.gz,
-OptimalCutpoints,1.1-3,https://cloud.r-project.org/src/contrib/OptimalCutpoints_1.1-3.tar.gz,
-oro.nifti,0.9.1,https://cloud.r-project.org/src/contrib/oro.nifti_0.9.1.tar.gz,
-party,1.2-3,https://cloud.r-project.org/src/contrib/party_1.2-3.tar.gz,
-pbkrtest,0.4-7,https://cloud.r-project.org/src/contrib/pbkrtest_0.4-7.tar.gz,
-pkgconfig,2.0.1,https://cloud.r-project.org/src/contrib/pkgconfig_2.0.1.tar.gz,
-plogr,0.1-1,https://cloud.r-project.org/src/contrib/plogr_0.1-1.tar.gz,
-plyr,1.8.4,https://cloud.r-project.org/src/contrib/plyr_1.8.4.tar.gz,
-ppcor,1.1,https://cloud.r-project.org/src/contrib/ppcor_1.1.tar.gz,
-pracma,2.1.1,https://cloud.r-project.org/src/contrib/pracma_2.1.1.tar.gz,
-pROC,1.10.0,https://cloud.r-project.org/src/contrib/pROC_1.10.0.tar.gz,
-prodlim,1.6.1,https://cloud.r-project.org/src/contrib/prodlim_1.6.1.tar.gz,
-prophet,0.2.1,https://cloud.r-project.org/src/contrib/prophet_0.2.1.tar.gz,
-psych,1.7.8,https://cloud.r-project.org/src/contrib/psych_1.7.8.tar.gz,
-purrr,0.2.4,https://cloud.r-project.org/src/contrib/purrr_0.2.4.tar.gz,
-quantmod,0.4-12,https://cloud.r-project.org/src/contrib/quantmod_0.4-12.tar.gz,
-quantreg,5.34,https://cloud.r-project.org/src/contrib/quantreg_5.34.tar.gz,
-R6,2.2.2,https://cloud.r-project.org/src/contrib/R6_2.2.2.tar.gz,
-randomForest,4.6-12,https://cloud.r-project.org/src/contrib/randomForest_4.6-12.tar.gz,
-randomForestSRC,2.5.1,https://cloud.r-project.org/src/contrib/randomForestSRC_2.5.1.tar.gz,
-RColorBrewer,1.1-2,https://cloud.r-project.org/src/contrib/RColorBrewer_1.1-2.tar.gz,
-Rcpp,0.12.14,https://cloud.r-project.org/src/contrib/Rcpp_0.12.14.tar.gz,
-RcppArmadillo,0.8.300.1.0,https://cloud.r-project.org/src/contrib/RcppArmadillo_0.8.300.1.0.tar.gz,
-RcppEigen,0.3.3.3.1,https://cloud.r-project.org/src/contrib/RcppEigen_0.3.3.3.1.tar.gz,
-RcppRoll,0.2.2,https://cloud.r-project.org/src/contrib/RcppRoll_0.2.2.tar.gz,
-RCurl,1.95-4.8,https://cloud.r-project.org/src/contrib/RCurl_1.95-4.8.tar.gz,
-readr,1.1.1,https://cloud.r-project.org/src/contrib/readr_1.1.1.tar.gz,
-readxl,1.0.0,https://cloud.r-project.org/src/contrib/readxl_1.0.0.tar.gz,
-recipes,0.1.1,https://cloud.r-project.org/src/contrib/recipes_0.1.1.tar.gz,
-rematch,1.0.1,https://cloud.r-project.org/src/contrib/rematch_1.0.1.tar.gz,
-reshape2,1.4.2,https://cloud.r-project.org/src/contrib/reshape2_1.4.2.tar.gz,
-rJava,0.9-9,https://cloud.r-project.org/src/contrib/rJava_0.9-9.tar.gz,
-RJDBC,0.2-5,https://cloud.r-project.org/src/contrib/RJDBC_0.2-5.tar.gz,
-rjson,0.2.15,https://cloud.r-project.org/src/contrib/rjson_0.2.15.tar.gz,
-rlang,0.1.4,https://cloud.r-project.org/src/contrib/rlang_0.1.4.tar.gz,
-rmarkdown,1.8,https://cloud.r-project.org/src/contrib/rmarkdown_1.8.tar.gz,
-RNifti,0.7.1,https://cloud.r-project.org/src/contrib/RNifti_0.7.1.tar.gz,
-robustbase,0.92-8,https://cloud.r-project.org/src/contrib/robustbase_0.92-8.tar.gz,
-ROCR,1.0-7,https://cloud.r-project.org/src/contrib/ROCR_1.0-7.tar.gz,
-ROracle,1.3-1,https://cloud.r-project.org/src/contrib/ROracle_1.3-1.tar.gz,
-rpart,4.1-11,https://cloud.r-project.org/src/contrib/rpart_4.1-11.tar.gz,
-rprojroot,1.2,https://cloud.r-project.org/src/contrib/rprojroot_1.2.tar.gz,
-RSclient,0.7-3,https://cloud.r-project.org/src/contrib/RSclient_0.7-3.tar.gz,
-Rserve,1.7-3,https://cloud.r-project.org/src/contrib/Rserve_1.7-3.tar.gz,
-rstudioapi,0.7,https://cloud.r-project.org/src/contrib/rstudioapi_0.7.tar.gz,
-sandwich,2.4-0,https://cloud.r-project.org/src/contrib/sandwich_2.4-0.tar.gz,
-scales,0.5.0,https://cloud.r-project.org/src/contrib/scales_0.5.0.tar.gz,
-sfsmisc,1.1-1,https://cloud.r-project.org/src/contrib/sfsmisc_1.1-1.tar.gz,
-shiny,1.0.5,https://cloud.r-project.org/src/contrib/shiny_1.0.5.tar.gz,
-shinyjs,0.9.1,https://cloud.r-project.org/src/contrib/shinyjs_0.9.1.tar.gz,
-shinythemes,1.1.1,https://cloud.r-project.org/src/contrib/shinythemes_1.1.1.tar.gz,
-snow,0.4-2,https://cloud.r-project.org/src/contrib/snow_0.4-2.tar.gz,
-sourcetools,0.1.6,https://cloud.r-project.org/src/contrib/sourcetools_0.1.6.tar.gz,
-sp,1.2-5,https://cloud.r-project.org/src/contrib/sp_1.2-5.tar.gz,
-SparseM,1.77,https://cloud.r-project.org/src/contrib/SparseM_1.77.tar.gz,
-sqldf,0.4-11,https://cloud.r-project.org/src/contrib/sqldf_0.4-11.tar.gz,
-stringi,1.1.6,https://cloud.r-project.org/src/contrib/stringi_1.1.6.tar.gz,
-stringr,1.2.0,https://cloud.r-project.org/src/contrib/stringr_1.2.0.tar.gz,
-survival,2.41-3,https://cloud.r-project.org/src/contrib/survival_2.41-3.tar.gz,
-TH.data,1.0-8,https://cloud.r-project.org/src/contrib/TH.data_1.0-8.tar.gz,
-tibble,1.3.4,https://cloud.r-project.org/src/contrib/tibble_1.3.4.tar.gz,
-tidyr,0.7.2,https://cloud.r-project.org/src/contrib/tidyr_0.7.2.tar.gz,
-tidyselect,0.2.3,https://cloud.r-project.org/src/contrib/tidyselect_0.2.3.tar.gz,
-tidyverse,1.2.1,https://cloud.r-project.org/src/contrib/tidyverse_1.2.1.tar.gz,
-timeDate,3042.101,https://cloud.r-project.org/src/contrib/timeDate_3042.101.tar.gz,
-viridis,0.4.0,https://cloud.r-project.org/src/contrib/viridis_0.4.0.tar.gz,
-viridisLite,0.2.0,https://cloud.r-project.org/src/contrib/viridisLite_0.2.0.tar.gz,
-whisker,0.3-2,https://cloud.r-project.org/src/contrib/whisker_0.3-2.tar.gz,
-withr,2.1.0,https://cloud.r-project.org/src/contrib/withr_2.1.0.tar.gz,
-wordcloud,2.5,https://cloud.r-project.org/src/contrib/wordcloud_2.5.tar.gz,
-xgboost,0.6-4,https://cloud.r-project.org/src/contrib/xgboost_0.6-4.tar.gz,
-XML,3.98-1.9,https://cloud.r-project.org/src/contrib/XML_3.98-1.9.tar.gz,
-xml2,1.1.1,https://cloud.r-project.org/src/contrib/xml2_1.1.1.tar.gz,
-xtable,1.8-2,https://cloud.r-project.org/src/contrib/xtable_1.8-2.tar.gz,
-yaml,2.1.15,https://cloud.r-project.org/src/contrib/yaml_2.1.15.tar.gz,
-zoo,1.8-0,https://cloud.r-project.org/src/contrib/zoo_1.8-0.tar.gz,
-
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+assertthat,0.2.0,https://cloud.r-project.org/src/contrib/assertthat_0.2.0.tar.gz,true
+backports,1.1.1,https://cloud.r-project.org/src/contrib/backports_1.1.1.tar.gz,true
+base64enc,0.1-3,https://cloud.r-project.org/src/contrib/base64enc_0.1-3.tar.gz,true
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+bindrcpp,0.2,https://cloud.r-project.org/src/contrib/bindrcpp_0.2.tar.gz,true
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+broom,0.4.3,https://cloud.r-project.org/src/contrib/broom_0.4.3.tar.gz,true
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+lmerTest,2.0-36,https://cloud.r-project.org/src/contrib/lmerTest_2.0-36.tar.gz,true
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+Matrix,1.2-12,https://cloud.r-project.org/src/contrib/Matrix_1.2-12.tar.gz,true
+MatrixModels,0.4-1,https://cloud.r-project.org/src/contrib/MatrixModels_0.4-1.tar.gz,true
+mboost,2.8-1,https://cloud.r-project.org/src/contrib/mboost_2.8-1.tar.gz,true
+memoise,1.1.0,https://cloud.r-project.org/src/contrib/memoise_1.1.0.tar.gz,true
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+mime,0.5,https://cloud.r-project.org/src/contrib/mime_0.5.tar.gz,true
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+minqa,1.2.4,https://cloud.r-project.org/src/contrib/minqa_1.2.4.tar.gz,true
+mnormt,1.5-5,https://cloud.r-project.org/src/contrib/mnormt_1.5-5.tar.gz,true
+ModelMetrics,1.1.0,https://cloud.r-project.org/src/contrib/ModelMetrics_1.1.0.tar.gz,true
+modeltools,0.2-21,https://cloud.r-project.org/src/contrib/modeltools_0.2-21.tar.gz,true
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+munsell,0.4.3,https://cloud.r-project.org/src/contrib/munsell_0.4.3.tar.gz,true
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+nloptr,1.0.4,https://cloud.r-project.org/src/contrib/nloptr_1.0.4.tar.gz,true
+nnet,7.3-12,https://cloud.r-project.org/src/contrib/nnet_7.3-12.tar.gz,true
+numDeriv,2016.8-1,https://cloud.r-project.org/src/contrib/numDeriv_2016.8-1.tar.gz,true
+openssl,0.9.9,https://cloud.r-project.org/src/contrib/openssl_0.9.9.tar.gz,true
+OptimalCutpoints,1.1-3,https://cloud.r-project.org/src/contrib/OptimalCutpoints_1.1-3.tar.gz,true
+oro.nifti,0.9.1,https://cloud.r-project.org/src/contrib/oro.nifti_0.9.1.tar.gz,true
+party,1.2-3,https://cloud.r-project.org/src/contrib/party_1.2-3.tar.gz,true
+pbkrtest,0.4-7,https://cloud.r-project.org/src/contrib/pbkrtest_0.4-7.tar.gz,true
+pkgconfig,2.0.1,https://cloud.r-project.org/src/contrib/pkgconfig_2.0.1.tar.gz,true
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+plyr,1.8.4,https://cloud.r-project.org/src/contrib/plyr_1.8.4.tar.gz,true
+ppcor,1.1,https://cloud.r-project.org/src/contrib/ppcor_1.1.tar.gz,true
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+pROC,1.10.0,https://cloud.r-project.org/src/contrib/pROC_1.10.0.tar.gz,true
+prodlim,1.6.1,https://cloud.r-project.org/src/contrib/prodlim_1.6.1.tar.gz,true
+prophet,0.2.1,https://cloud.r-project.org/src/contrib/prophet_0.2.1.tar.gz,true
+psych,1.7.8,https://cloud.r-project.org/src/contrib/psych_1.7.8.tar.gz,true
+purrr,0.2.4,https://cloud.r-project.org/src/contrib/purrr_0.2.4.tar.gz,true
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+quantreg,5.34,https://cloud.r-project.org/src/contrib/quantreg_5.34.tar.gz,true
+R6,2.2.2,https://cloud.r-project.org/src/contrib/R6_2.2.2.tar.gz,true
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+randomForestSRC,2.5.1,https://cloud.r-project.org/src/contrib/randomForestSRC_2.5.1.tar.gz,true
+RColorBrewer,1.1-2,https://cloud.r-project.org/src/contrib/RColorBrewer_1.1-2.tar.gz,true
+Rcpp,0.12.14,https://cloud.r-project.org/src/contrib/Rcpp_0.12.14.tar.gz,true
+RcppArmadillo,0.8.300.1.0,https://cloud.r-project.org/src/contrib/RcppArmadillo_0.8.300.1.0.tar.gz,true
+RcppEigen,0.3.3.3.1,https://cloud.r-project.org/src/contrib/RcppEigen_0.3.3.3.1.tar.gz,true
+RcppRoll,0.2.2,https://cloud.r-project.org/src/contrib/RcppRoll_0.2.2.tar.gz,true
+RCurl,1.95-4.8,https://cloud.r-project.org/src/contrib/RCurl_1.95-4.8.tar.gz,true
+readr,1.1.1,https://cloud.r-project.org/src/contrib/readr_1.1.1.tar.gz,true
+readxl,1.0.0,https://cloud.r-project.org/src/contrib/readxl_1.0.0.tar.gz,true
+recipes,0.1.1,https://cloud.r-project.org/src/contrib/recipes_0.1.1.tar.gz,true
+rematch,1.0.1,https://cloud.r-project.org/src/contrib/rematch_1.0.1.tar.gz,true
+reshape2,1.4.2,https://cloud.r-project.org/src/contrib/reshape2_1.4.2.tar.gz,true
+rJava,0.9-9,https://cloud.r-project.org/src/contrib/rJava_0.9-9.tar.gz,true
+RJDBC,0.2-5,https://cloud.r-project.org/src/contrib/RJDBC_0.2-5.tar.gz,true
+rjson,0.2.15,https://cloud.r-project.org/src/contrib/rjson_0.2.15.tar.gz,true
+rlang,0.1.4,https://cloud.r-project.org/src/contrib/rlang_0.1.4.tar.gz,true
+rmarkdown,1.8,https://cloud.r-project.org/src/contrib/rmarkdown_1.8.tar.gz,true
+RNifti,0.7.1,https://cloud.r-project.org/src/contrib/RNifti_0.7.1.tar.gz,true
+robustbase,0.92-8,https://cloud.r-project.org/src/contrib/robustbase_0.92-8.tar.gz,true
+ROCR,1.0-7,https://cloud.r-project.org/src/contrib/ROCR_1.0-7.tar.gz,true
+ROracle,1.3-1,https://cloud.r-project.org/src/contrib/ROracle_1.3-1.tar.gz,true
+rpart,4.1-11,https://cloud.r-project.org/src/contrib/rpart_4.1-11.tar.gz,true
+rprojroot,1.2,https://cloud.r-project.org/src/contrib/rprojroot_1.2.tar.gz,true
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+scales,0.5.0,https://cloud.r-project.org/src/contrib/scales_0.5.0.tar.gz,true
+sfsmisc,1.1-1,https://cloud.r-project.org/src/contrib/sfsmisc_1.1-1.tar.gz,true
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+shinyjs,0.9.1,https://cloud.r-project.org/src/contrib/shinyjs_0.9.1.tar.gz,true
+shinythemes,1.1.1,https://cloud.r-project.org/src/contrib/shinythemes_1.1.1.tar.gz,true
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+stringi,1.1.6,https://cloud.r-project.org/src/contrib/stringi_1.1.6.tar.gz,true
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+survival,2.41-3,https://cloud.r-project.org/src/contrib/survival_2.41-3.tar.gz,true
+TH.data,1.0-8,https://cloud.r-project.org/src/contrib/TH.data_1.0-8.tar.gz,true
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+tidyselect,0.2.3,https://cloud.r-project.org/src/contrib/tidyselect_0.2.3.tar.gz,true
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+timeDate,3042.101,https://cloud.r-project.org/src/contrib/timeDate_3042.101.tar.gz,true
+viridis,0.4.0,https://cloud.r-project.org/src/contrib/viridis_0.4.0.tar.gz,true
+viridisLite,0.2.0,https://cloud.r-project.org/src/contrib/viridisLite_0.2.0.tar.gz,true
+whisker,0.3-2,https://cloud.r-project.org/src/contrib/whisker_0.3-2.tar.gz,true
+withr,2.1.0,https://cloud.r-project.org/src/contrib/withr_2.1.0.tar.gz,true
+wordcloud,2.5,https://cloud.r-project.org/src/contrib/wordcloud_2.5.tar.gz,true
+xgboost,0.6-4,https://cloud.r-project.org/src/contrib/xgboost_0.6-4.tar.gz,true
+XML,3.98-1.9,https://cloud.r-project.org/src/contrib/XML_3.98-1.9.tar.gz,true
+xml2,1.1.1,https://cloud.r-project.org/src/contrib/xml2_1.1.1.tar.gz,true
+xtable,1.8-2,https://cloud.r-project.org/src/contrib/xtable_1.8-2.tar.gz,true
+yaml,2.1.15,https://cloud.r-project.org/src/contrib/yaml_2.1.15.tar.gz,true
+zoo,1.8-0,https://cloud.r-project.org/src/contrib/zoo_1.8-0.tar.gz,true
diff --git a/com.oracle.truffle.r.test.packages/r/install.cache.R b/com.oracle.truffle.r.test.packages/r/install.cache.R
index d74eb390f13e15fe0f38b5848afc6b89ced2bff5..44acb6c78892cef96158f0699daf6323e3a9c19d 100644
--- a/com.oracle.truffle.r.test.packages/r/install.cache.R
+++ b/com.oracle.truffle.r.test.packages/r/install.cache.R
@@ -21,7 +21,7 @@
 # questions.
 #
 
-# A simple log function; to be replaced by a used of this file.
+# A simple log function; to be replaced by a user of this file.
 log.message <- function(..., level=0) {
     cat(..., "\n")
 }
diff --git a/com.oracle.truffle.r.test.packages/r/install.packages.R b/com.oracle.truffle.r.test.packages/r/install.packages.R
index ab3f80286a0fc97eaa427729e43f9c35dbf6c8ab..ac41213d2f09d6117231ac521570215793b038e9 100644
--- a/com.oracle.truffle.r.test.packages/r/install.packages.R
+++ b/com.oracle.truffle.r.test.packages/r/install.packages.R
@@ -126,6 +126,7 @@ usage <- function() {
 					  "[--alpha-daily]",
 					  "[--count-daily count]",
 					  "[--ok-only]",
+					  "[--important-pkgs file]",
                       "[--pkg-pattern package-pattern] \n"))
 	quit(status=100)
 }
@@ -631,6 +632,17 @@ get.blacklist <- function() {
 	blacklist
 }
 
+is.important.package <- function(pkg.name, pkg.version) {
+    # lazy-load the important packages table
+    if (is.null(important.pkg.table) && !is.na(important.pkg.table.file)) {
+        important.pkg.table <<- read.csv(important.pkg.table.file, header = FALSE, sep = ",", quote = "\"", dec = ".", fill = TRUE, comment.char = "", col.names=c("name","version","url","important"))
+    }
+    if (!is.null(important.pkg.table)) {
+        return (any(important.pkg.table[important.pkg.table$name == pkg.name & important.pkg.table$version == pkg.version, "important"]))
+    }
+    return (FALSE)
+}
+
 show.install.status <- function(test.pkgnames) {
 	if (print.install.status) {
 		cat("BEGIN install status\n")
@@ -650,7 +662,10 @@ do.it <- function() {
 			pkg <- toinstall.pkgs[pkgname, ]
 			# pretend we are accessing CRAN if list.canonical
 			list.contriburl = ifelse(list.canonical, "https://cran.r-project.org/src/contrib", pkg["Repository"])
-			cat(pkg["Package"], pkg["Version"], paste0(list.contriburl, "/", pkgname, "_", pkg["Version"], ".tar.gz"), "\n", sep=",")
+            pkg.repo.name <- pkg["Package"]
+            pkg.version <- pkg["Version"]
+            important <- tolower(as.character(is.important.package(pkg.repo.name, pkg.version)))
+			cat(paste(pkg.repo.name, pkg.version, paste0(list.contriburl, "/", pkgname, "_", pkg["Version"], ".tar.gz"), important, sep=","), "\n")
 		}
 	}
 
@@ -943,6 +958,11 @@ parse.args <- function() {
 			invert.pkgset <<- TRUE
 		} else if (a == "--find-top100") {
 			find.top100 <<- TRUE
+		} else if (a == "--important-pkgs") {
+			important.pkg.table.file <<- get.argvalue()
+			if (is.na(important.pkg.table.file)) {
+				usage()
+			}
 		} else {
 			if (grepl("^-.*", a)) {
 				usage()
@@ -1126,6 +1146,8 @@ list.versions <- FALSE
 list.canonical <- FALSE
 invert.pkgset <- F
 find.top100 <- F
+important.pkg.table.file <- NA
+important.pkg.table <- NULL
 
 if (!interactive()) {
     run()