AzureStor (version 3.4.0)

storage_write_delim: Read and write a data frame to/from a storage account

Description

Read and write a data frame to/from a storage account

Usage

storage_write_delim(object, container, file, delim = "\t", ...)
storage_write_csv(object, container, file, ...)
storage_write_csv2(object, container, file, ...)
storage_read_delim(container, file, delim = "\t", ...)
storage_read_csv(container, file, ...)
storage_read_csv2(container, file, ...)

Arguments

object

A data frame to write to storage.

container

An Azure storage container object.

file

The name of a file in storage.

delim

For storage_write_delim and storage_read_delim, the field delimiter. Defaults to \t (tab).

...

Optional arguments passed to the file reading/writing functions. See 'Details'.

Details

These functions let you read and write data frames to storage. storage_read_delim and write_delim are for reading and writing arbitrary delimited files. storage_read_csv and write_csv are for comma-delimited (CSV) files. storage_read_csv2 and write_csv2 are for files with the semicolon ; as delimiter and comma , as the decimal point, as used in some European countries.

If the readr package is installed, they call down to read_delim, write_delim, read_csv2 and write_csv2. Otherwise, they use read_delim and write.table.

See Also

storage_download, download_blob, download_azure_file, download_adls_file, write.table, read.csv, readr::write_delim, readr::read_delim

Examples

# NOT RUN {
bl <- storage_endpoint("https://mystorage.blob.core.windows.net/", key="access_key")
cont <- storage_container(bl, "mycontainer")

storage_write_csv(iris, cont, "iris.csv")
# if readr is not installed
irisnew <- storage_read_csv(cont, "iris.csv", stringsAsFactors=TRUE)
# if readr is installed
irisnew <- storage_read_csv(cont, "iris.csv", col_types="nnnnf")

all(mapply(identical, iris, irisnew))  # TRUE

# }