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September 14, 2021 00:19
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Encode Experiment ID -> Narrow Peak URLs
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encExp2Peaks <- function(acc, getIDR=FALSE) { | |
resp <- httr::GET(url = paste0("https://www.encodeproject.org/search/?type=File&dataset=/experiments/", | |
acc,"/&file_type=bed+narrowPeak&format=json&frame=object&limit=all"), httr::accept_json()) %>% | |
httr::content(as="parsed") | |
res <- lapply(seq(resp$`@graph`), function(i) { | |
entry <- resp$`@graph`[[i]] | |
tibble( | |
accfile = entry$accession, | |
sup = ! is.null(entry$superseded_by %>% unlist()), | |
type = entry$file_type, | |
assembly = entry$assembly, | |
date = as.Date(entry$date_created), | |
url = entry$s3_uri, | |
output_type = entry$output_type, | |
biol_reps = entry$biological_replicates %>% unlist() %>% paste0(collapse = "_"), | |
acc = acc | |
) | |
}) %>% bind_rows() %>% | |
mutate(best_samps = case_when( | |
"1_2" %in% biol_reps ~ "1_2", | |
TRUE ~ "1" | |
)) %>% | |
dplyr::filter(! sup, | |
assembly == "GRCh38", | |
biol_reps == best_samps) %>% | |
mutate(dateMax = max(date)) %>% | |
dplyr::filter(date == dateMax) %>% | |
mutate(url = paste0("https://www.encodeproject.org/files/", accfile, "/@@download/", accfile, ".bed.gz")) | |
if (nrow(res) > 1 & getIDR) { | |
res <- dplyr::filter(res, output_type == "IDR thresholded peaks") | |
} else { | |
res | |
} | |
} |
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