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Rmd 67aac02 sayanpaul01 2025-08-05 Commit
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๐Ÿ“ŒPCA of Filtered log2(CPM) (RowMeans > 0)

library(edgeR)
Warning: package 'edgeR' was built under R version 4.3.2
Warning: package 'limma' was built under R version 4.3.1
library(ggplot2)
library(reshape2)
library(dplyr)
Warning: package 'dplyr' was built under R version 4.3.2
library(Biobase)
Warning: package 'Biobase' was built under R version 4.3.1
Warning: package 'BiocGenerics' was built under R version 4.3.1
library(limma)
library(tidyverse)
Warning: package 'tidyverse' was built under R version 4.3.2
Warning: package 'tidyr' was built under R version 4.3.3
Warning: package 'readr' was built under R version 4.3.3
Warning: package 'purrr' was built under R version 4.3.3
Warning: package 'stringr' was built under R version 4.3.2
Warning: package 'lubridate' was built under R version 4.3.3
library(scales)
Warning: package 'scales' was built under R version 4.3.2
library(biomaRt)
Warning: package 'biomaRt' was built under R version 4.3.2
library(ggrepel)
Warning: package 'ggrepel' was built under R version 4.3.3
library(corrplot)
Warning: package 'corrplot' was built under R version 4.3.3
library(Hmisc)
Warning: package 'Hmisc' was built under R version 4.3.3
library(org.Hs.eg.db)
Warning: package 'AnnotationDbi' was built under R version 4.3.2
Warning: package 'IRanges' was built under R version 4.3.1
Warning: package 'S4Vectors' was built under R version 4.3.2
library(AnnotationDbi)
library(tidyr)
library(ggfortify)
library(edgeR)
library(limma)
library(data.table)
Warning: package 'data.table' was built under R version 4.3.3
library(tidyverse)
library(ggplot2)
library(dplyr)
library(scales)
library(biomaRt)
library(Homo.sapiens)
Warning: package 'OrganismDbi' was built under R version 4.3.1
Warning: package 'GenomicFeatures' was built under R version 4.3.3
Warning: package 'GenomeInfoDb' was built under R version 4.3.3
Warning: package 'GenomicRanges' was built under R version 4.3.1
library(ComplexHeatmap)
Warning: package 'ComplexHeatmap' was built under R version 4.3.1
library(tidyverse)
library(data.table)

### ๐Ÿ“ Load the Count Matrix CSV file
counts_matrix <- read.csv("data/counts_matrix.csv", header = TRUE, check.names = FALSE)

# Compute log2 Counts Per Million (CPM)
cpm <- cpm(counts_matrix)
lcpm <- cpm(counts_matrix, log = TRUE)

# Apply filtering thresholds
filcpm_matrix  <- subset(lcpm, rowMeans(lcpm) > 0)
filcpm_matrix1 <- subset(lcpm, rowMeans(lcpm) > 0.5)
filcpm_matrix2 <- subset(lcpm, rowMeans(lcpm) > 1)

### ๐Ÿ“Œ Color palettes (updated)
drug_conc_palette <- c(
  "CX-5461_0.1" = "gold",  # light green
  "CX-5461_0.5" = "green4",  # dark green
  "DOX_0.1"     = "salmon2",  # peach
  "DOX_0.5"     = "red3",  # burnt orange
  "VEH_0.1"     = "lightblue3",  # sky blue
  "VEH_0.5"     = "darkblue"   # navy blue
)
drug_palc <- c("#8B006D","#DF707E","#F1B72B", "#3386DD","#707031","#41B333")
drug_palc1 <- c("#8B006D","#F1B72B", "#3386DD","#707031")
drug_palc2 <- c("#8B006D","#F1B72B", "#3386DD")

Metadata <- read.csv("data/Metadata.csv")
dim(Metadata)
[1] 108  13
head(Metadata)
             Sample            Sample_bam   Counts Ind    Sex    Drug Conc.
1   MCW_SP_JT_R1_R1   MCW_SP_JT_R1_R1.bam 33084169   4   Male CX-5461   0.1
2  MCW_SP_JT_R10_R1  MCW_SP_JT_R10_R1.bam 25345827   4   Male     DOX   0.5
3 MCW_SP_JT_R100_R1 MCW_SP_JT_R100_R1.bam 28098918   3 Female     DOX   0.5
4 MCW_SP_JT_R101_R1 MCW_SP_JT_R101_R1.bam 28580787   3 Female     VEH   0.1
5 MCW_SP_JT_R102_R1 MCW_SP_JT_R102_R1.bam 28144482   3 Female     VEH   0.5
6 MCW_SP_JT_R103_R1 MCW_SP_JT_R103_R1.bam 28976075   3 Female CX-5461   0.1
  Time         Sample_name     Sample_name_alt   Condition           Sample_ID
1    3  17-3_CX-5461_0.1_3  17.3_CX.5461_0.1_3 CX-5461_0.1  CX-5461_0.1_3_17-3
2   24     17-3_DOX_0.5_24     17.3_DOX_0.5_24     DOX_0.5     DOX_0.5_24_17-3
3   24     87-1_DOX_0.5_24     87.1_DOX_0.5_24     DOX_0.5     DOX_0.5_24_87-1
4   24     87-1_VEH_0.1_24     87.1_VEH_0.1_24     VEH_0.1     VEH_0.1_24_87-1
5   24     87-1_VEH_0.5_24     87.1_VEH_0.5_24     VEH_0.5     VEH_0.5_24_87-1
6   48 87-1_CX-5461_0.1_48 87.1_CX.5461_0.1_48 CX-5461_0.1 CX-5461_0.1_48_87-1
       Drug_time
1  CX-5461_0.1_3
2     DOX_0.5_24
3     DOX_0.5_24
4     VEH_0.1_24
5     VEH_0.5_24
6 CX-5461_0.1_48
# Time relabeling
Metadata$Time <- factor(Metadata$Time, levels = c(3, 24, 48),
                        labels = c("3hr", "24hr", "48hr"))
Metadata$Ind <- as.character(Metadata$Ind)
Metadata$Drug <- as.character(Metadata$Drug)
Metadata$Conc <- as.character(Metadata$Conc)
Metadata$Drug_Conc <- paste(Metadata$Drug, Metadata$Conc, sep = "_")

Metadata$Indiv <- factor(Metadata$Ind, levels = c("75-1", "78-1", "87-1", "17-3", "84-1", "90-1"),
                         labels = c("1 (Female)", "2 (Female)", "3 (Female)", 
                                    "4 (Male)", "5 (Male)", "6 (Male)"))

Indiv <- Metadata$Ind
matrix <- as.matrix(lcpm)


prcomp_res1 <- prcomp(t(filcpm_matrix %>% as.matrix()), center = TRUE)

ggplot2::autoplot(prcomp_res1, data = Metadata, colour = "Drug_Conc", shape = "Time", size =4, x=1, y=2) +
  ggrepel::geom_text_repel(label=Indiv) +
  scale_color_manual(values=drug_conc_palette) +
  ggtitle(expression("PCA of gene expression (log2 cpm)")) +
  theme_bw()
Warning: ggrepel: 51 unlabeled data points (too many overlaps). Consider
increasing max.overlaps

Version Author Date
67aac02 sayanpaul01 2025-08-05

๐Ÿ“Œ Proportion of DEGs

# Load required packages
library(dplyr)
library(tidyr)
library(ggplot2)

# Step 1: Load all DEG files from folder
deg_files <- list.files("data/DEGs/", pattern = "Toptable_.*\\.csv", full.names = TRUE)

# Step 2: Create named list of DEG data frames
deg_list <- lapply(deg_files, read.csv)
names(deg_list) <- gsub("Toptable_|\\.csv", "", basename(deg_files))  # e.g., "CX_0.1_3"

# Step 3: Process each DEG data frame
prop_data <- lapply(names(deg_list), function(name) {
  df <- deg_list[[name]]
  df <- df %>%
    mutate(Category = case_when(
      adj.P.Val < 0.05 & logFC > 0 ~ "Upregulated",
      adj.P.Val < 0.05 & logFC < 0 ~ "Downregulated",
      TRUE ~ "Non-DEGs"
    ))
  
  df %>%
    count(Category) %>%
    mutate(Sample = name,
           Proportion = 100 * n / sum(n)) %>%
    dplyr::select(Sample, Category, Proportion)
}) %>% bind_rows()

# Step 4: Set the correct sample order (by time: 3hr, 24hr, 48hr within each drug-dose)
sample_order <- c(
  "CX_0.1_3", "CX_0.1_24", "CX_0.1_48",
  "CX_0.5_3", "CX_0.5_24", "CX_0.5_48",
  "DOX_0.1_3", "DOX_0.1_24", "DOX_0.1_48",
  "DOX_0.5_3", "DOX_0.5_24", "DOX_0.5_48"
)

prop_data$Sample <- factor(prop_data$Sample, levels = sample_order)
prop_data$Category <- factor(prop_data$Category, levels = c("Upregulated", "Downregulated", "Non-DEGs"))

# Step 5: Define fill colors
fill_colors <- c("Upregulated" = "blue", "Downregulated" = "red", "Non-DEGs" = "grey")

# Step 6: Plot the stacked bar chart
ggplot(prop_data, aes(x = Sample, y = Proportion, fill = Category)) +
  geom_bar(stat = "identity") +
  scale_fill_manual(values = fill_colors) +
  labs(
    title = "Proportion of DEGs and Non-DEGs across Samples",
    x = "Samples",
    y = "Proportion (%)"
  ) +
  theme_minimal(base_size = 14) +
  theme(
    axis.text.x = element_text(angle = 45, hjust = 1),
    plot.title = element_text(size = 16, face = "bold"),
    legend.title = element_text(face = "bold")
  )

Version Author Date
67aac02 sayanpaul01 2025-08-05

๐Ÿ“Œ LogFC Correlation CX and DOX

library(ComplexHeatmap)
library(tidyverse)
library(data.table)

# Load logFC data from CSV
logFC_corr <- read.csv("data/LOG2FC.csv")

# Convert to dataframe
logFC_corr_df <- data.frame(logFC_corr)

# Remove 'X' prefix from the first column
names(logFC_corr_df)[1] <- sub("^X", "", names(logFC_corr_df)[1])

# Convert to matrix format for correlation analysis
log2corr <- as.matrix(logFC_corr_df[, -1])

# Display first few rows
print(head(log2corr))
     CX.5461_0.1_3 CX.5461_0.1_24 CX.5461_0.1_48 CX.5461_0.5_3 CX.5461_0.5_24
[1,]   0.004014353     0.01797208      0.1843569    0.02720364     0.01672747
[2,]   0.175440414     0.09122136      0.2212550   -0.18005874    -0.11889672
[3,]   0.078881609     0.07834693      0.2786495   -0.08765174     0.10414165
[4,]   0.178167060     0.16311897      0.1577607   -0.17199420    -0.14578900
[5,]   0.303563222     0.10207047      0.3053246   -0.06573953     0.49701105
[6,]   0.152614389     0.04773016      0.1732226   -0.26468304    -0.09250807
     CX.5461_0.5_48   DOX_0.1_3 DOX_0.1_24 DOX_0.1_48    DOX_0.5_3 DOX_0.5_24
[1,]     0.05809672  0.08247267  0.2200048  0.2815441  0.115454181  0.1581417
[2,]    -0.03169605 -0.13564062 -0.1407592 -0.2064884 -0.195284631 -0.9096266
[3,]    -0.11362867  0.09288180  0.2546936  0.3313280  0.006547797  0.2891939
[4,]    -0.21285541 -0.13223667 -0.2684351 -0.2338832 -0.192421781 -0.5155552
[5,]    -0.37877928 -0.09045264  0.1014059  0.4197312  0.177886764  0.4371439
[6,]    -0.08389116 -0.09231344 -0.2104519 -0.1243965 -0.375429448 -0.5502692
     DOX_0.5_48
[1,]  0.4372001
[2,] -1.3556420
[3,]  0.3328763
[4,] -0.9117574
[5,]  0.1966726
[6,] -0.7475815
# Load metadata
meta <- read.csv("data/Meta.csv")

# Assign column names based on sample metadata
colnames(log2corr) <- meta$Sample
Drug <- meta$Drug
time <- meta$Time
conc <- as.character(meta$Conc.)

time_colors <- c("3" = "purple", "24" = "pink", "48" = "tomato3")
drug_colors <- c("CX-5461" = "yellow", "DOX" = "magenta4")
conc_colors <- c("0.1" = "lightblue", "0.5" = "lightcoral")

# Create annotations
top_annotation1 <- HeatmapAnnotation(
  timepoints = time,
  drugs = Drug,
  concentrations = conc,
  col = list(
    timepoints = time_colors,
    drugs = drug_colors,
    concentrations = conc_colors
  )
)

cor_matrix1 <- cor(log2corr, method = "pearson")
cor_matrix2 <- cor(log2corr, method = "spearman")


heatmap1 <- Heatmap(
  cor_matrix1,
  name = "Correlation",
  top_annotation = top_annotation1,
  rect_gp = gpar(col = "black", lwd = 1),
  show_row_names = TRUE,
  show_column_names = TRUE,
  cell_fun = function(j, i, x, y, width, height, fill) {
    grid.text(sprintf("%.3f", cor_matrix1[i, j]), x, y, gp = gpar(fontsize = 10, col = "black"))
  }
)

# Draw the heatmap
draw(heatmap1)

Version Author Date
67aac02 sayanpaul01 2025-08-05

๐Ÿ“Œ Top BP (Cluster Profiler)

# Load Required Libraries
library(tidyverse)
library(ComplexHeatmap)
library(circlize)
Warning: package 'circlize' was built under R version 4.3.3
library(grid)

# Input GO Enrichment Files
go_files <- list(
  "CX_0.1_3"  = "data/BP/All_Terms/GO_BP_CX_0.1_3.csv",
  "CX_0.1_24" = "data/BP/All_Terms/GO_BP_CX_0.1_24.csv",
  "CX_0.1_48" = "data/BP/All_Terms/GO_BP_CX_0.1_48.csv",
  "CX_0.5_3"  = "data/BP/All_Terms/GO_BP_CX_0.5_3.csv",
  "CX_0.5_24" = "data/BP/All_Terms/GO_BP_CX_0.5_24.csv",
  "CX_0.5_48" = "data/BP/All_Terms/GO_BP_CX_0.5_48.csv",
  "DOX_0.1_3" = "data/BP/All_Terms/GO_BP_DOX_0.1_3.csv",
  "DOX_0.1_24"= "data/BP/All_Terms/GO_BP_DOX_0.1_24.csv",
  "DOX_0.1_48"= "data/BP/All_Terms/GO_BP_DOX_0.1_48.csv",
  "DOX_0.5_3" = "data/BP/All_Terms/GO_BP_DOX_0.5_3.csv",
  "DOX_0.5_24"= "data/BP/All_Terms/GO_BP_DOX_0.5_24.csv",
  "DOX_0.5_48"= "data/BP/All_Terms/GO_BP_DOX_0.5_48.csv"
)

# Step 1: Extract Top 5 GO Terms (padj < 0.05) from each file
top_go_terms <- map(go_files, function(file) {
  df <- tryCatch(read.csv(file), error = function(e) return(NULL))
  
  if (!is.null(df) && "p.adjust" %in% names(df) && "Description" %in% names(df)) {
    df %>%
      as_tibble() %>%
      filter(p.adjust < 0.05) %>%
      arrange(p.adjust) %>%
      dplyr::select(Description) %>%
      slice_head(n = 5) %>%
      pull(Description) %>%
      unique()
  } else {
    character(0)
  }
}) %>% unlist() %>% unique()

# Step 2: Build Combined Table
go_matrix_df <- map_dfr(names(go_files), function(cond) {
  file <- go_files[[cond]]
  message("Processing: ", cond)

  df <- tryCatch(read.csv(file), error = function(e) return(data.frame()))

  if (!"Description" %in% names(df) || nrow(df) == 0) {
    message("โ†’ Skipping (missing or empty): ", file)
    return(tibble(Description = top_go_terms, pvalue = NA, p.adjust = NA, log10p = NA, Condition = cond))
  }

  df %>%
    as_tibble() %>%
    mutate(Description = as.character(Description)) %>%
    dplyr::select(Description, pvalue, p.adjust) %>%
    filter(Description %in% top_go_terms) %>%
    mutate(log10p = -log10(pvalue)) %>%
    right_join(tibble(Description = top_go_terms), by = "Description") %>%
    mutate(Condition = cond)
})

# Step 3: Create Heatmap Matrices
heatmap_data <- go_matrix_df %>%
  dplyr::select(Description, Condition, log10p) %>%
  pivot_wider(names_from = Condition, values_from = log10p) %>%
  column_to_rownames("Description") %>%
  as.matrix()

pval_matrix <- go_matrix_df %>%
  dplyr::select(Description, Condition, pvalue) %>%
  pivot_wider(names_from = Condition, values_from = pvalue) %>%
  column_to_rownames("Description") %>%
  as.matrix()

p_adj_matrix <- go_matrix_df %>%
  dplyr::select(Description, Condition, p.adjust) %>%
  pivot_wider(names_from = Condition, values_from = p.adjust) %>%
  column_to_rownames("Description") %>%
  as.matrix()

# Step 4: Define Color Scale
breaks <- seq(0, 20, by = 2.5)
palette <- colorRampPalette(c("white", "#fde0dd", "#fa9fb5", "#f768a1", "#c51b8a", "#7a0177", "#49006a"))(length(breaks))
col_fun <- colorRamp2(breaks, palette)

# Step 5: Plot Heatmap with Stars
ht <- Heatmap(
  heatmap_data,
  name = "-log10(p)",
  col = col_fun,
  na_col = "white",
  rect_gp = gpar(col = "black", lwd = 0.5),
  cluster_rows = FALSE,
  cluster_columns = FALSE,
  row_names_gp = gpar(fontsize = 9),
  column_names_gp = gpar(fontsize = 9),
  column_names_rot = 45,
  row_names_max_width = max_text_width(rownames(heatmap_data), gp = gpar(fontsize = 9)),
  cell_fun = function(j, i, x, y, width, height, fill) {
    if (!is.na(p_adj_matrix[i, j]) && p_adj_matrix[i, j] < 0.05) {
      grid.text("*", x, y, gp = gpar(fontsize = 12))
    }
  },
  heatmap_legend_param = list(
    title = "-log10(p value)",
    at = breaks,
    labels = as.character(breaks),
    legend_width = unit(5, "cm"),
    direction = "horizontal",
    title_gp = gpar(fontsize = 10, fontface = "bold"),
    labels_gp = gpar(fontsize = 9)
  )
)

# Draw final plot
draw(ht, heatmap_legend_side = "top")

Version Author Date
67aac02 sayanpaul01 2025-08-05

sessionInfo()
R version 4.3.0 (2023-04-21 ucrt)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 11 x64 (build 26100)

Matrix products: default


locale:
[1] LC_COLLATE=English_United States.utf8 
[2] LC_CTYPE=English_United States.utf8   
[3] LC_MONETARY=English_United States.utf8
[4] LC_NUMERIC=C                          
[5] LC_TIME=English_United States.utf8    

time zone: America/Chicago
tzcode source: internal

attached base packages:
[1] grid      stats4    stats     graphics  grDevices utils     datasets 
[8] methods   base     

other attached packages:
 [1] circlize_0.4.16                        
 [2] ComplexHeatmap_2.18.0                  
 [3] Homo.sapiens_1.3.1                     
 [4] TxDb.Hsapiens.UCSC.hg19.knownGene_3.2.2
 [5] GO.db_3.18.0                           
 [6] OrganismDbi_1.44.0                     
 [7] GenomicFeatures_1.54.4                 
 [8] GenomicRanges_1.54.1                   
 [9] GenomeInfoDb_1.38.8                    
[10] data.table_1.17.0                      
[11] ggfortify_0.4.17                       
[12] org.Hs.eg.db_3.18.0                    
[13] AnnotationDbi_1.64.1                   
[14] IRanges_2.36.0                         
[15] S4Vectors_0.40.2                       
[16] Hmisc_5.2-3                            
[17] corrplot_0.95                          
[18] ggrepel_0.9.6                          
[19] biomaRt_2.58.2                         
[20] scales_1.3.0                           
[21] lubridate_1.9.4                        
[22] forcats_1.0.0                          
[23] stringr_1.5.1                          
[24] purrr_1.0.4                            
[25] readr_2.1.5                            
[26] tidyr_1.3.1                            
[27] tibble_3.2.1                           
[28] tidyverse_2.0.0                        
[29] Biobase_2.62.0                         
[30] BiocGenerics_0.48.1                    
[31] dplyr_1.1.4                            
[32] reshape2_1.4.4                         
[33] ggplot2_3.5.2                          
[34] edgeR_4.0.16                           
[35] limma_3.58.1                           
[36] workflowr_1.7.1                        

loaded via a namespace (and not attached):
  [1] later_1.3.2                 BiocIO_1.12.0              
  [3] bitops_1.0-9                filelock_1.0.3             
  [5] graph_1.80.0                XML_3.99-0.18              
  [7] rpart_4.1.24                lifecycle_1.0.4            
  [9] doParallel_1.0.17           rprojroot_2.0.4            
 [11] processx_3.8.6              lattice_0.22-7             
 [13] backports_1.5.0             magrittr_2.0.3             
 [15] sass_0.4.10                 rmarkdown_2.29             
 [17] jquerylib_0.1.4             yaml_2.3.10                
 [19] httpuv_1.6.15               DBI_1.2.3                  
 [21] RColorBrewer_1.1-3          abind_1.4-8                
 [23] zlibbioc_1.48.2             RCurl_1.98-1.17            
 [25] nnet_7.3-20                 rappdirs_0.3.3             
 [27] git2r_0.36.2                GenomeInfoDbData_1.2.11    
 [29] codetools_0.2-20            DelayedArray_0.28.0        
 [31] xml2_1.3.8                  tidyselect_1.2.1           
 [33] shape_1.4.6.1               farver_2.1.2               
 [35] matrixStats_1.5.0           BiocFileCache_2.10.2       
 [37] base64enc_0.1-3             GenomicAlignments_1.38.2   
 [39] jsonlite_2.0.0              GetoptLong_1.0.5           
 [41] Formula_1.2-5               iterators_1.0.14           
 [43] foreach_1.5.2               tools_4.3.0                
 [45] progress_1.2.3              Rcpp_1.0.12                
 [47] glue_1.7.0                  gridExtra_2.3              
 [49] SparseArray_1.2.4           xfun_0.52                  
 [51] MatrixGenerics_1.14.0       withr_3.0.2                
 [53] BiocManager_1.30.25         fastmap_1.2.0              
 [55] callr_3.7.6                 digest_0.6.34              
 [57] timechange_0.3.0            R6_2.6.1                   
 [59] colorspace_2.1-0            Cairo_1.6-2                
 [61] RSQLite_2.3.9               generics_0.1.3             
 [63] rtracklayer_1.62.0          prettyunits_1.2.0          
 [65] httr_1.4.7                  htmlwidgets_1.6.4          
 [67] S4Arrays_1.2.1              whisker_0.4.1              
 [69] pkgconfig_2.0.3             gtable_0.3.6               
 [71] blob_1.2.4                  XVector_0.42.0             
 [73] htmltools_0.5.8.1           RBGL_1.78.0                
 [75] clue_0.3-66                 png_0.1-8                  
 [77] knitr_1.50                  rstudioapi_0.17.1          
 [79] tzdb_0.5.0                  rjson_0.2.23               
 [81] checkmate_2.3.2             curl_6.2.2                 
 [83] cachem_1.1.0                GlobalOptions_0.1.2        
 [85] parallel_4.3.0              foreign_0.8-90             
 [87] restfulr_0.0.15             pillar_1.10.2              
 [89] vctrs_0.6.5                 promises_1.3.2             
 [91] dbplyr_2.5.0                cluster_2.1.8.1            
 [93] htmlTable_2.4.3             evaluate_1.0.3             
 [95] magick_2.8.6                cli_3.6.1                  
 [97] locfit_1.5-9.12             compiler_4.3.0             
 [99] Rsamtools_2.18.0            rlang_1.1.3                
[101] crayon_1.5.3                labeling_0.4.3             
[103] ps_1.8.1                    getPass_0.2-4              
[105] plyr_1.8.9                  fs_1.6.3                   
[107] stringi_1.8.3               BiocParallel_1.36.0        
[109] munsell_0.5.1               Biostrings_2.70.3          
[111] Matrix_1.6-1.1              hms_1.1.3                  
[113] bit64_4.6.0-1               KEGGREST_1.42.0            
[115] statmod_1.5.0               SummarizedExperiment_1.32.0
[117] memoise_2.0.1               bslib_0.9.0                
[119] bit_4.6.0