>                       sample_type <- "Primary Tumor"

> # 该癌症总样品数量

> samplesDown <- getResults(query.met,cols=c("cases"))

> cat("Total sample to download:", length(samplesDown))

Total sample to download: 582

> # 下载甲基化数据，数据非常非常大,采用client下载，需要很长时间，耐心等待吧

> # 如果下载中断了，请再次执行，client 可以续传

> GDCdownload(query.met,directory = DataDirectory,files.per.chunk=6, method='api')

Downloading data for project TCGA-OV

Of the 582 files for download 54 already exist.

We will download only those that are missing ones.

GDCdownload will download 528 files. A total of 5.255722393 GB

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Of the 528 files for download 450 already exist.

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