if (!require("BiocManager")) {
install.packages("BiocManager")
}
BiocManager::install("glmSparseNet")
library(dplyr)
library(ggplot2)
library(survival)
library(futile.logger)
library(curatedTCGAData)
library(TCGAutils)
library(MultiAssayExperiment)
#
library(glmSparseNet)
#
# Some general options for futile.logger the debugging package
flog.layout(layout.format("[~l] ~m"))
options(
"glmSparseNet.show_message" = FALSE,
"glmSparseNet.base_dir" = withr::local_tempdir()
)
# Setting ggplot2 default theme as minimal
theme_set(ggplot2::theme_minimal())
The data is loaded from an online curated dataset downloaded from TCGA using
curatedTCGAData
bioconductor package and processed.
To accelerate the process we use a very reduced dataset down to 107 variables only (genes), which is stored as a data object in this package. However, the procedure to obtain the data manually is described in the following chunk.
brca <- curatedTCGAData(
diseaseCode = "BRCA", assays = "RNASeq2GeneNorm",
version = "1.1.38", dry.run = FALSE
)
# keep only solid tumour (code: 01)
brcaPrimarySolidTumor <- TCGAutils::TCGAsplitAssays(brca, "01")
xdataRaw <- t(assay(brcaPrimarySolidTumor[[1]]))
# Get survival information
ydataRaw <- colData(brcaPrimarySolidTumor) |>
as.data.frame() |>
# Keep only data relative to survival or samples
dplyr::select(
patientID, vital_status,
Days.to.date.of.Death, Days.to.Date.of.Last.Contact,
days_to_death, days_to_last_followup,
Vital.Status
) |>
# Convert days to integer
dplyr::mutate(Days.to.date.of.Death = as.integer(Days.to.date.of.Death)) |>
dplyr::mutate(
Days.to.Last.Contact = as.integer(Days.to.Date.of.Last.Contact)
) |>
# Find max time between all days (ignoring missings)
dplyr::rowwise() |>
dplyr::mutate(
time = max(days_to_last_followup, Days.to.date.of.Death,
Days.to.Last.Contact, days_to_death,
na.rm = TRUE
)
) |>
# Keep only survival variables and codes
dplyr::select(patientID, status = vital_status, time) |>
# Discard individuals with survival time less or equal to 0
dplyr::filter(!is.na(time) & time > 0) |>
as.data.frame()
# Set index as the patientID
rownames(ydataRaw) <- ydataRaw$patientID
# Get matches between survival and assay data
xdataRaw <- xdataRaw[
TCGAbarcode(rownames(xdataRaw)) %in% rownames(ydataRaw),
]
xdataRaw <- xdataRaw[, apply(xdataRaw, 2, sd) != 0] |>
scale()
# Order ydata the same as assay
ydataRaw <- ydataRaw[TCGAbarcode(rownames(xdataRaw)), ]
# Using only a subset of genes previously selected to keep this short example.
set.seed(params$seed)
smallSubset <- c(
"CD5", "CSF2RB", "IRGC", "NEUROG2", "NLRC4", "PDE11A",
"PTEN", "TP53", "BRAF",
"PIK3CB", "QARS", "RFC3", "RPGRIP1L", "SDC1", "TMEM31",
"YME1L1", "ZBTB11", sample(colnames(xdataRaw), 100)
) |>
unique()
xdata <- xdataRaw[, smallSubset[smallSubset %in% colnames(xdataRaw)]]
ydata <- ydataRaw |> dplyr::select(time, status)
Fit model model penalizing by the hubs using the cross-validation function by
cv.glmHub
.
set.seed(params$seed)
fitted <- cv.glmHub(xdata, Surv(ydata$time, ydata$status),
family = "cox",
lambda = buildLambda(1),
network = "correlation",
options = networkOptions(
cutoff = .6,
minDegree = .2
)
)
## Warning in regularize.values(x, y, ties, missing(ties), na.rm = na.rm):
## collapsing to unique 'x' values
## Warning in regularize.values(x, y, ties, missing(ties), na.rm = na.rm):
## collapsing to unique 'x' values
## Warning in regularize.values(x, y, ties, missing(ties), na.rm = na.rm):
## collapsing to unique 'x' values
## Warning in regularize.values(x, y, ties, missing(ties), na.rm = na.rm):
## collapsing to unique 'x' values
## Warning in regularize.values(x, y, ties, missing(ties), na.rm = na.rm):
## collapsing to unique 'x' values
## Warning in regularize.values(x, y, ties, missing(ties), na.rm = na.rm):
## collapsing to unique 'x' values
## Warning in regularize.values(x, y, ties, missing(ties), na.rm = na.rm):
## collapsing to unique 'x' values
## Warning in regularize.values(x, y, ties, missing(ties), na.rm = na.rm):
## collapsing to unique 'x' values
## Warning in regularize.values(x, y, ties, missing(ties), na.rm = na.rm):
## collapsing to unique 'x' values
## Warning in regularize.values(x, y, ties, missing(ties), na.rm = na.rm):
## collapsing to unique 'x' values
Shows the results of 100
different parameters used to find the optimal value
in 10-fold cross-validation. The two vertical dotted lines represent the best
model and a model with less variables selected (genes), but within a standard
error distance from the best.
plot(fitted)
Taking the best model described by lambda.min
coefsCV <- Filter(function(.x) .x != 0, coef(fitted, s = "lambda.min")[, 1])
## Warning in regularize.values(x, y, ties, missing(ties), na.rm = na.rm):
## collapsing to unique 'x' values
data.frame(
gene.name = names(coefsCV),
coefficient = coefsCV,
stringsAsFactors = FALSE
) |>
arrange(gene.name) |>
knitr::kable()
gene.name | coefficient | |
---|---|---|
CD5 | CD5 | -0.16632 |
separate2GroupsCox(as.vector(coefsCV),
xdata[, names(coefsCV)],
ydata,
plotTitle = "Full dataset", legendOutside = FALSE
)
## $pvalue
## [1] 0.001237802
##
## $plot
##
## $km
## Call: survfit(formula = survival::Surv(time, status) ~ group, data = prognosticIndexDf)
##
## n events median 0.95LCL 0.95UCL
## Low risk - 1 540 58 3959 3492 NA
## High risk - 1 540 94 3738 3262 4456
sessionInfo()
## R Under development (unstable) (2024-11-20 r87352)
## Platform: aarch64-apple-darwin20
## Running under: macOS Ventura 13.7.1
##
## Matrix products: default
## BLAS: /Library/Frameworks/R.framework/Versions/4.5-arm64/Resources/lib/libRblas.0.dylib
## LAPACK: /Library/Frameworks/R.framework/Versions/4.5-arm64/Resources/lib/libRlapack.dylib; LAPACK version 3.12.0
##
## locale:
## [1] C/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
##
## time zone: America/New_York
## tzcode source: internal
##
## attached base packages:
## [1] grid parallel stats4 stats graphics grDevices utils
## [8] datasets methods base
##
## other attached packages:
## [1] glmnet_4.1-8 VennDiagram_1.7.3
## [3] reshape2_1.4.4 forcats_1.0.0
## [5] Matrix_1.7-1 glmSparseNet_1.25.0
## [7] TCGAutils_1.27.0 curatedTCGAData_1.29.2
## [9] MultiAssayExperiment_1.33.1 SummarizedExperiment_1.37.0
## [11] Biobase_2.67.0 GenomicRanges_1.59.1
## [13] GenomeInfoDb_1.43.2 IRanges_2.41.2
## [15] S4Vectors_0.45.2 BiocGenerics_0.53.3
## [17] generics_0.1.3 MatrixGenerics_1.19.0
## [19] matrixStats_1.4.1 futile.logger_1.4.3
## [21] survival_3.7-0 ggplot2_3.5.1
## [23] dplyr_1.1.4 BiocStyle_2.35.0
##
## loaded via a namespace (and not attached):
## [1] jsonlite_1.8.9 shape_1.4.6.1
## [3] magrittr_2.0.3 magick_2.8.5
## [5] GenomicFeatures_1.59.1 farver_2.1.2
## [7] rmarkdown_2.29 BiocIO_1.17.1
## [9] zlibbioc_1.53.0 vctrs_0.6.5
## [11] memoise_2.0.1 Rsamtools_2.23.1
## [13] RCurl_1.98-1.16 rstatix_0.7.2
## [15] tinytex_0.54 progress_1.2.3
## [17] htmltools_0.5.8.1 S4Arrays_1.7.1
## [19] BiocBaseUtils_1.9.0 AnnotationHub_3.15.0
## [21] lambda.r_1.2.4 curl_6.0.1
## [23] broom_1.0.7 Formula_1.2-5
## [25] pROC_1.18.5 SparseArray_1.7.2
## [27] sass_0.4.9 bslib_0.8.0
## [29] plyr_1.8.9 httr2_1.0.7
## [31] zoo_1.8-12 futile.options_1.0.1
## [33] cachem_1.1.0 GenomicAlignments_1.43.0
## [35] mime_0.12 lifecycle_1.0.4
## [37] iterators_1.0.14 pkgconfig_2.0.3
## [39] R6_2.5.1 fastmap_1.2.0
## [41] GenomeInfoDbData_1.2.13 digest_0.6.37
## [43] colorspace_2.1-1 AnnotationDbi_1.69.0
## [45] ps_1.8.1 ExperimentHub_2.15.0
## [47] RSQLite_2.3.9 ggpubr_0.6.0
## [49] labeling_0.4.3 filelock_1.0.3
## [51] km.ci_0.5-6 fansi_1.0.6
## [53] httr_1.4.7 abind_1.4-8
## [55] compiler_4.5.0 bit64_4.5.2
## [57] withr_3.0.2 backports_1.5.0
## [59] BiocParallel_1.41.0 carData_3.0-5
## [61] DBI_1.2.3 ggsignif_0.6.4
## [63] biomaRt_2.63.0 rappdirs_0.3.3
## [65] DelayedArray_0.33.3 rjson_0.2.23
## [67] tools_4.5.0 chromote_0.3.1
## [69] glue_1.8.0 restfulr_0.0.15
## [71] promises_1.3.2 checkmate_2.3.2
## [73] gtable_0.3.6 KMsurv_0.1-5
## [75] tzdb_0.4.0 tidyr_1.3.1
## [77] survminer_0.5.0 websocket_1.4.2
## [79] data.table_1.16.2 hms_1.1.3
## [81] car_3.1-3 xml2_1.3.6
## [83] utf8_1.2.4 XVector_0.47.0
## [85] BiocVersion_3.21.1 foreach_1.5.2
## [87] pillar_1.9.0 stringr_1.5.1
## [89] later_1.4.1 splines_4.5.0
## [91] BiocFileCache_2.15.0 lattice_0.22-6
## [93] rtracklayer_1.67.0 bit_4.5.0.1
## [95] tidyselect_1.2.1 Biostrings_2.75.1
## [97] knitr_1.49 gridExtra_2.3
## [99] bookdown_0.41 xfun_0.49
## [101] stringi_1.8.4 UCSC.utils_1.3.0
## [103] yaml_2.3.10 evaluate_1.0.1
## [105] codetools_0.2-20 tibble_3.2.1
## [107] BiocManager_1.30.25 cli_3.6.3
## [109] xtable_1.8-4 munsell_0.5.1
## [111] processx_3.8.4 jquerylib_0.1.4
## [113] survMisc_0.5.6 Rcpp_1.0.13-1
## [115] GenomicDataCommons_1.31.0 dbplyr_2.5.0
## [117] png_0.1-8 XML_3.99-0.17
## [119] readr_2.1.5 blob_1.2.4
## [121] prettyunits_1.2.0 bitops_1.0-9
## [123] scales_1.3.0 purrr_1.0.2
## [125] crayon_1.5.3 rlang_1.1.4
## [127] KEGGREST_1.47.0 rvest_1.0.4
## [129] formatR_1.14