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    "data": [
        "> ",
        "fviz_pca_biplot(pca_model, label = \"var\", habillage = data$Country)",
        "Error in data$Country : object of type 'closure' is not subsettable\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "Error in utils::unzip(zip_path, list = TRUE) : \n  zip file '/home/rstudio/Klausur/EU2024.xlsx' cannot be opened\n",
        "\r-\r                                                                                                           \r",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r\u001B[1m\u001B[33mError\u001B[39m in `geom_point()` at \u001B]8;line = 22:col = 1;file:///home/rstudio/Klausur/EU2024.R\u0007~/Klausur/EU2024.R:22:1\u001B]8;;\u0007:\u001B[22m\n\u001B[1m\u001B[22m\u001B[33m!\u001B[39m Problem while compu",
        "ting aesthetics.\n\u001B[36mℹ\u001B[39m Error occurred in the 1st layer.\n\u001B[1mCaused by error:\u001B[22m\n\u001B[33m!\u001B[39m object 'Country' not found\n\u001B[90mRun `\u001B]8;;x-r-run:rlang::last_trace()\u0007rlang::last_trace()\u001B]8;;\u0007` to see where the error occurred.\u001B[39m\n",
        "Warning message:\n\u001B[1m\u001B[22m`aes_string()` was deprecated in ggplot2 3.0.0.\n\u001B[36mℹ\u001B[39m Please use tidy evaluation idioms with `aes()`.\n\u001B[36mℹ\u001B[39m See also `vignette(\"ggplot2-in-packages\")` for more information.\n\u001B[90mThis warning is displayed once every 8 hours.\u001B[39m\n\u001B[90mCall `lifecycle::last_lifecycle_warnings()` to see where this warning was generated.\u001B[39m \n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r\u001B[1m\u001B[33mError\u001B[39m in `geom_point()` at \u001B]8;line = 22:col = 1;file:///home/rstudio/Klausur/EU2024.R\u0007~/Klausur/EU2024.R:22:1\u001B]8;;\u0007:\u001B[22m\n\u001B[1m\u001B[22m\u001B[33m!\u001B[39m Problem while compu",
        "ting aesthetics.\n\u001B[36mℹ\u001B[39m Error occurred in the 1st layer.\n\u001B[1mCaused by error:\u001B[22m\n\u001B[33m!\u001B[39m object 'Country' not found\n\u001B[90mRun `\u001B]8;;x-r-run:rlang::last_trace()\u0007rlang::last_trace()\u001B]8;;\u0007` to see where the error occurred.\u001B[39m\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r",
        "Error in .add_ind_groups(X, df, habillage) : \n  The number of active individuals is different from the length of the factor habillage. Please, remove the supplementary individuals in the variable habillage.\nIn addition: Warning message:\nUnknown or uninitialised column: `Country`. \n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r",
        "Error in .add_ind_groups(X, df, habillage) : \n  The number of active individuals is different from the length of the factor habillage. Please, remove the supplementary individuals in the variable habillage.\nIn addition: Warning message:\nUnknown or uninitialised column: `Country`. \n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r",
        "Error in .add_ind_groups(X, df, habillage) : \n  The number of active individuals is different from the length of the factor habillage. Please, remove the supplementary individuals in the variable habillage.\nIn addition: Warning message:\nUnknown or uninitialised column: `Country`. \n",
        "> ",
        "data <- read_excel(\"EU2024.xlsx\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r",
        "> ",
        "colnames(data)",
        " [1] \"Land\"                     \"Fläche\"                   \"Einwohner\"               \n [4] \"Bevölkerungsdichte\"       \"HöchsterPunkt\"            \"U15\"                     \n [7] \"Ü64\"                      \"B. in Stadt\"              \"B. Wachstum\"             \n[10] \"Altersmedian\"             \"Wlebenserwartung\"         \"Mlebenserwartung\"        \n[13] \"BIP\"                      \"BIP-Wachstum\"             \"BIP/Kopf\"                \n[16] \"Inflation\"                \"Import\"                   \"Export\"           ",
        "       \n[19] \"BIP-Landwirtschaft\"       \"BIP-Industrie\"            \"BIP-Dienstleistungen\"    \n[22] \"AloQuo\"                   \"CO2/Kopf\"                 \"StromErneuerbareEnergien\"\n[25] \"GiniIndex\"                \"Bruttostundenlohn\"       \n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r",
        "Error in faces(scale(data[, sapply(data, is.numeric)])) : \n  could not find function \"faces\"\n",
        "> ",
        "install.packages(\"factoextra\")",
        "Error in install.packages : Updating loaded packages\n\nRestarting R session...\n\n",
        "Installing package into ‘/usr/local/lib/R/site-library’\n(as ‘lib’ is unspecified)\ntrying URL 'https://p3m.dev/cran/__linux__/noble/latest/src/contrib/factoextra_1.0.7.tar.gz'\nContent type 'binary/octet-stream' length 420118 bytes (410 KB)\n==================================================\ndownloaded 410 KB\n\n* installing *binary* package ‘factoextra’ ...\n* DONE (factoextra)\n\nThe downloaded source packages are in\n\t‘/tmp/RtmpltFmiN/downloaded_packages’\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "Registered S3 method overwritten by 'GGally':\n  method from   \n  +.gg   ggplot2\ncorrplot 0.95 loaded\nLoading required package: lattice\nWelcome! Want to learn more? See two factoextra-related books at https://goo.gl/ve3WBa\n",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r",
        "Error in faces(scale(data[, sapply(data, is.numeric)])) : \n  could not find function \"faces\"\nIn addition: Warning message:\n\u001B[1m\u001B[22m`aes_string()` was deprecated in ggplot2 3.0.0.\n\u001B[36mℹ\u001B[39m Please use tidy evaluation idioms with `aes()`.\n\u001B[36mℹ\u001B[39m See also `vignette(\"ggplot2-in-packages\")` for more information.\n\u001B[90mThis warning is displayed once every 8 hours.\u001B[39m\n\u001B[90mCall `lifecycle::last_lifecycle_warnings()` to see where this warning was generated.\u001B[39m \n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r",
        "Error in .get_facto_class(X) : \n  An object of class : matrixarray can't be handled by factoextra\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "Error in source(\"~/Klausur/EU2024.R\") : \n  ~/Klausur/EU2024.R:59:0: unexpected end of input\n57: data_matrix <- as.data.frame(data)\n58: fviz_pca_ind(scale(data_matrix)\n   ^\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r",
        "Error in colMeans(x, na.rm = TRUE) : 'x' must be numeric\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r",
        "Error in colMeans(x, na.rm = TRUE) : 'x' must be numeric\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r\u001B[1m\u001B[33mError\u001B[39m in `geom_point()` at \u001B]8;line = 21:col = 3;file:///home/rstudio/Klausur/EU2024.R\u0007~/Klausur/EU2024.R:21:3\u001B]8;;\u0007:\u001B[22m\n\u001B[1m\u001B[22m\u001B[33m!\u001B[39m Problem while compu",
        "ting aesthetics.\n\u001B[36mℹ\u001B[39m Error occurred in the 1st layer.\n\u001B[1mCaused by error:\u001B[22m\n\u001B[33m!\u001B[39m object 'Kopf' not found\n\u001B[90mRun `\u001B]8;;x-r-run:rlang::last_trace()\u0007rlang::last_trace()\u001B]8;;\u0007` to see where the error occurred.\u001B[39m\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r\u001B[1m\u001B[33mError\u001B[39m in `geom_point()` at \u001B]8;line = 23:col = 3;file:///home/rstudio/Klausur/EU2024.R\u0007~/Klausur/EU2024.R:23:3\u001B]8;;\u0007:\u001B[22m\n\u001B[1m\u001B[22m\u001B[33m!\u001B[39m Problem while compu",
        "ting aesthetics.\n\u001B[36mℹ\u001B[39m Error occurred in the 1st layer.\n\u001B[1mCaused by error:\u001B[22m\n\u001B[33m!\u001B[39m object 'Kopf' not found\n\u001B[90mRun `\u001B]8;;x-r-run:rlang::last_trace()\u0007rlang::last_trace()\u001B]8;;\u0007` to see where the error occurred.\u001B[39m\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r\u001B[1m\u001B[33mError\u001B[39m in `geom_point()` at \u001B]8;line = 23:col = 3;file:///home/rstudio/Klausur/EU2024.R\u0007~/Klausur/EU2024.R:23:3\u001B]8;;\u0007:\u001B[22m\n\u001B[1m\u001B[22m\u001B[33m!\u001B[39m Problem while compu",
        "ting aesthetics.\n\u001B[36mℹ\u001B[39m Error occurred in the 1st layer.\n\u001B[1mCaused by error:\u001B[22m\n\u001B[33m!\u001B[39m object 'Kopf' not found\n\u001B[90mRun `\u001B]8;;x-r-run:rlang::last_trace()\u0007rlang::last_trace()\u001B]8;;\u0007` to see where the error occurred.\u001B[39m\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r[1] \"BIP\"       \"Einwohner\"\n[1] \"Import\"    \"Einwohner\"\n[1] \"Export\"    \"Einwohner\"\n[1] \"Mlebenserwartung\" \"Wlebenserwartung\"\n[1] \"Wlebenserwartung\" \"Mlebenserwartung\"\n[1] \"Einw",
        "ohner\" \"BIP\"      \n[1] \"Import\" \"BIP\"   \n[1] \"Export\" \"BIP\"   \n[1] \"Bruttostundenlohn\" \"BIP/Kopf\"         \n\u001B[1m\u001B[33mError\u001B[39m in `geom_point()` at \u001B]8;line = 26:col = 3;file:///home/rstudio/Klausur/EU2024.R\u0007~/Klausur/EU2024.R:26:3\u001B]8;;\u0007:\u001B[22m\n\u001B[1m\u001B[22m\u001B[33m!\u001B[39m Problem while computing aesthetics.\n\u001B[36mℹ\u001B[39m Error occurred in the 1st layer.\n\u001B[1mCaused by error:\u001B[22m\n\u001B[33m!\u001B[39m object 'Kopf' not found\n\u001B[90mRun `\u001B]8;;x-r-run:rlang::last_trace()\u0007rlang::last_trace()\u001B]8;;\u0007` to see where the error occurred.",
        "\u001B[39m\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "Error: package or namespace load failed for ‘aplpack’:\n .onLoad failed in loadNamespace() for 'tcltk', details:\n  call: dyn.load(file, DLLpath = DLLpath, ...)\n  error: unable to load shared object '/usr/local/lib/R/library/tcltk/libs/tcltk.so':\n  libtcl8.6.so: cannot open shared object file: No such file or directory\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "Error: package or namespace load failed for ‘aplpack’:\n .onLoad failed in loadNamespace() for 'tcltk', details:\n  call: dyn.load(file, DLLpath = DLLpath, ...)\n  error: unable to load shared object '/usr/local/lib/R/library/tcltk/libs/tcltk.so':\n  libtcl8.6.so: cannot open shared object file: No such file or directory\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r[1] \"BIP\"       \"Einwohner\"\n[1] \"Import\"    \"Einwohner\"\n[1] \"Export\"    \"Einwohner\"\n[1] \"Mlebenserwartung\" \"Wlebenserwartung\"\n[1] \"Wlebenserwartung\" \"Mlebenserwartung\"\n[1] \"Einw",
        "ohner\" \"BIP\"      \n[1] \"Import\" \"BIP\"   \n[1] \"Export\" \"BIP\"   \n[1] \"Bruttostundenlohn\" \"BIP/Kopf\"         \n\u001B[1m\u001B[33mError\u001B[39m in `geom_point()` at \u001B]8;line = 26:col = 3;file:///home/rstudio/Klausur/EU2024.R\u0007~/Klausur/EU2024.R:26:3\u001B]8;;\u0007:\u001B[22m\n\u001B[1m\u001B[22m\u001B[33m!\u001B[39m Problem while computing aesthetics.\n\u001B[36mℹ\u001B[39m Error occurred in the 1st layer.\n\u001B[1mCaused by error:\u001B[22m\n\u001B[33m!\u001B[39m object 'Kopf' not found\n\u001B[90mRun `\u001B]8;;x-r-run:rlang::last_trace()\u0007rlang::last_trace()\u001B]8;;\u0007` to see where the error occurred.",
        "\u001B[39m\n",
        "> ",
        "for (i in 1:nrow(high_cor_vars)) {",
        "+ ",
        "  pair <- rownames(cor_matrix)[high_cor_vars[i, ]]",
        "+ ",
        "  ",
        "+ ",
        "  print(pair)",
        "+ ",
        "  ",
        "+ ",
        "  scatter_plot <- ggplot(data, aes_string(x = pair[1], y = pair[2], label = \"Land\")) +",
        "+ ",
        "    geom_point() + ",
        "+ ",
        "    geom_text(vjust = -1) + ",
        "+ ",
        "    theme_minimal()",
        "+ ",
        "  ",
        "+ ",
        "  print(scatter_plot)",
        "+ ",
        "}",
        "[1] \"BIP\"       \"Einwohner\"\n[1] \"Import\"    \"Einwohner\"\n[1] \"Export\"    \"Einwohner\"\n[1] \"Mlebenserwartung\" \"Wlebenserwartung\"\n[1] \"Wlebenserwartung\" \"Mlebenserwartung\"\n[1] \"Einwohner\" \"BIP\"      \n[1] \"Import\" \"BIP\"   \n[1] \"Export\" \"BIP\"   \n[1] \"Bruttostundenlohn\" \"BIP/Kopf\"         \n\u001B[1m\u001B[33mError\u001B[39m in `geom_point()`:\u001B[22m\n\u001B[1m\u001B[22m\u001B[33m!\u001B[39m Problem while computing aesthetics.\n\u001B[36mℹ\u001B[39m Error occurred in the 1st layer.\n\u001B[1mCaused by error:\u001B[22m\n\u001B[33m!\u001B[39m object 'Kopf' not found\n\u001B[90mRun `\u001B]8;;x-r",
        "-run:rlang::last_trace()\u0007rlang::last_trace()\u001B]8;;\u0007` to see where the error occurred.\u001B[39m\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                                                           \r\r/\r                                                                                                           \r\r-\r                                                                                                           \r[1] \"BIP\"       \"Einwohner\"\n[1] \"Import\"    \"Einwohner\"\n[1] \"Export\"    \"Einwohner\"\n[1] \"Mlebenserwartung\" \"Wlebenserwartung\"\n[1] \"Wlebenserwartung\" \"Mlebenserwartung\"\n[1] \"Einw",
        "ohner\" \"BIP\"      \n[1] \"Import\" \"BIP\"   \n[1] \"Export\" \"BIP\"   \n[1] \"Bruttostundenlohn\" \"BIP/Kopf\"         \n\u001B[1m\u001B[33mError\u001B[39m in `geom_point()` at \u001B]8;line = 26:col = 3;file:///home/rstudio/Klausur/EU2024.R\u0007~/Klausur/EU2024.R:26:3\u001B]8;;\u0007:\u001B[22m\n\u001B[1m\u001B[22m\u001B[33m!\u001B[39m Problem while computing aesthetics.\n\u001B[36mℹ\u001B[39m Error occurred in the 1st layer.\n\u001B[1mCaused by error:\u001B[22m\n\u001B[33m!\u001B[39m object 'Kopf' not found\n\u001B[90mRun `\u001B]8;;x-r-run:rlang::last_trace()\u0007rlang::last_trace()\u001B]8;;\u0007` to see where the error occurred.",
        "\u001B[39m\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                        \r\r/\r                                                                        \r\r-\r                                                                        \r",
        "Error in .get_facto_class(X) : \n  An object of class : matrixarray can't be handled by factoextra\n",
        "> ",
        "source(\"~/Klausur/EU2024.R\")",
        "\r-\r/\r                                                                        \r\r/\r                                                                        \r\r-\r                                                                        \r",
        "> ",
        "mean(xx$b)",
        "Error: object 'xx' not found\n",
        "> ",
        "abline(li)",
        "Error: object 'li' not found\n",
        "> ",
        "> ",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "[1] 0.8\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "[1] 0.8\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "[1] 0.8\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "[1] 0.8\n",
        "Error in corrgram(corelation) : could not find function \"corrgram\"\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "[1] 0.8\n",
        "Error in corrplot(corelation) : Need a matrix or data frame!\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "[1] 0.8\n",
        "Error in corrplot(xx) : The matrix is not in [-1, 1]!\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "  cor.xx.a..xx.b.\n1             0.8\n",
        "Error in is.finite(tmp) : default method not implemented for type 'list'\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "[1] 0.8\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "[1] 0.8\n",
        "Error in corrplot(corelation, method = \"circle\") : \n  Need a matrix or data frame!\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "[1] 0.8\n",
        "Error in corrplot(corelation, method = \"circle\") : \n  Need a matrix or data frame!\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "Error in cor(data) : 'x' must be numeric\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "Error in cor(data) : 'x' must be numeric\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "Error in cor(data) : 'x' must be numeric\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "Error in cor(data, use = \"complete.obs\") : 'x' must be numeric\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "    a   b\na 1.0 0.8\nb 0.8 1.0\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "    a   b\na 1.0 0.8\nb 0.8 1.0\n",
        "Error in corrgram(pp[, c(2:7, 21)], main = \"Korrelogramm\", lower.panel = panel.pts,  : \n  could not find function \"corrgram\"\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "Error in library(corrgram) : there is no package called ‘corrgram’\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "\nAttaching package: ‘corrgram’\n\nThe following object is masked from ‘package:lattice’:\n\n    panel.fill\n\nThe following object is masked from ‘package:GGally’:\n\n    baseball\n\n",
        "    a   b\na 1.0 0.8\nb 0.8 1.0\n",
        "Error in eval(ei, envir) : object 'pp' not found\n",
        "> ",
        "source(\"~/Klausur/Probeklausur.R\")",
        "    a   b\na 1.0 0.8\nb 0.8 1.0\n",
        "Warning message:\nIn par(usr) : argument 1 does not name a graphical parameter\n"
    ]
}