Package 'RJSDMX'

Title: R Interface to SDMX Web Services
Description: Provides functions to retrieve data and metadata from providers that disseminate data by means of SDMX web services. SDMX (Statistical Data and Metadata eXchange) is a standard that has been developed with the aim of simplifying the exchange of statistical information. More about the SDMX standard and the SDMX Web Services can be found at: <https://sdmx.org>.
Authors: Attilio Mattiocco [aut, cre]
Maintainer: Attilio Mattiocco <[email protected]>
License: EUPL
Version: 3.5-0
Built: 2024-11-08 10:21:54 UTC
Source: CRAN

Help Index

Gets timeseries from SDMX data Provider

Description

This package provides functions to extract timeseries data and structural metadata from an SDMX Provider (e.g. ECB,OECD, EUROSTAT) via SDMX Web Service

Details

Package: RJSDMX
Type: Package

The SDMX Connectors framework (of which RJSDMX is part) aims to offer data users the means for efficiently interacting with SDMX Web Service providers from within the most popular statistical tools. The source code of the SDMX Connectors project can be found at:

https://github.com/amattioc/SDMX

Information about the R Connector can be found in the dedicated wiki page:

https://github.com/amattioc/SDMX/wiki/RJSDMX:-Connector-for-R

In particular, all information related to configuration (network, tracing, security) can be found at:

https://github.com/amattioc/SDMX/wiki/Configuration

Author(s)

Attilio Mattiocco, Bank of Italy [email protected]

See Also

getProviders, getTimeSeries, sdmxHelp

Examples

## Not run: 
 my_ts = getTimeSeries('ECB','EXR.M.USD.EUR.SP00.A')

## End(Not run)

add new provider

Description

Configure a new data provider (only SDMX 2.1 REST providers are supported). This function can be used to configure a new (SDMX 2.1 compliant, REST based) data provider.

Usage

addProvider(name, endpoint, needsCredentials = FALSE, needsURLEncoding = FALSE,
  supportsCompression = TRUE, description = "", sdmxVersion = "V2", 
  supportsAvailability = F)

Arguments

name

the name of the provider
endpoint

the URL where the provider resides
needsCredentials

set this to TRUE if the user needs to authenticate to query the provider
needsURLEncoding

set this to TRUE if the provider does not handle character '+' in URLs
supportsCompression

set this to TRUE if the provider is able to handle compression
description

a brief text description of the provider
supportsAvailability

set this to TRUE if the provider is able to handle availability queries
sdmxVersion

what sdmx version this provider supports

Examples

## Not run: 
addProvider('test', 'http://sdw-wsrest.ecb.europa.eu/service', FALSE)
getProviders()

## End(Not run)

get dsd codes for dataflow

Description

Extract the codes of a dimension. This function is used to retrieve the list of codes available for the input dimension and flow.

Usage

getCodes(provider, flow, dimension)

Arguments

flow

the identifier of the dataflow
dimension

the identifier of the dimension
provider

the name of the provider

Details

getCodes(provider, dataflow, dimension)

Examples

## Not run: 
codes=getCodes('ECB', 'EXR', 'FREQ')

## End(Not run)

get dsd dimensions for dataflow

Description

Extract the dimensions of a DataFlow. This function is used to retrieve the list of dimensions of the input dataflow

Usage

getDimensions(provider, dataflow)

Arguments

dataflow

the identifier of the dataflow
provider

the name of the provider

Details

getDimensions(provider, dataflow)

Examples

## Not run: 
dims = getDimensions('ECB','EXR')

## End(Not run)

get DSD Identifier for dataflow

Description

Extract the dsd identifier of a DataFlow. This function is used to retrieve the name of the keyfamily of the input dataflow.

Usage

getDSDIdentifier(provider, dataflow)

Arguments

provider

the name of the provider
dataflow

the identifier of the dataflow

Details

getDSDIdentifier(provider, dataflow)

Examples

## Not run: 
id = getDSDIdentifier('ECB','EXR')

## End(Not run)

get provider flow list

Description

Extract the list of DataFlows of a provider. This function is used to query the list of dataflows of the provider. A matching pattern can be provided, if needed.

Usage

getFlows(provider, pattern = "")

Arguments

pattern

the pattern to match against the dataflow id or description. If a pattern is not provided, all dataflows are returned.
provider

the name of the provider

Details

getFlows(provider, pattern)

Author(s)

Attilio Mattiocco [email protected], Diana Nicoletti

Examples

## Not run: 
## get all flows from ECB
flows = getFlows('ECB')
## get all flows that contain the 'EXR
flows = getFlows('ECB','*EXR*')

## End(Not run)

get available providers

Description

Extract the list of available Data Providers. This function is used to query the list of data providers.

Usage

getProviders()

Details

getProviders()

Examples

## Not run: 
getProviders()

## End(Not run)

get time series

Description

Extract a list of time series. This function is used to extract a list of time series identified by the parameters provided in input.

getTimeSeries(provider, id, start, end)

Usage

getTimeSeries(provider, id, start='', end='')

Arguments

provider

the name of the provider
id

identifier of the time series
end

the end time - optional
start

the start time - optional

Examples

## Not run: 
# SDMX V2
## get single time series:
my_ts=getTimeSeries('ECB',id='EXR.A.USD.EUR.SP00.A')
## get monthly and annual frequency: 
my_ts=getTimeSeries('ECB',id='EXR.A+M.USD.EUR.SP00.A')
## get all available frequencies: 
my_ts=getTimeSeries('ECB',id='EXR..USD.EUR.SP00.A')

## End(Not run)

get time series (SDMX v3)

Description

Extract a list of time series . This function is used to extract a list of time series identified by the parameters provided in input.

Usage

getTimeSeries2(
  provider,
  dataflow,
  key = "",
  filter = "",
  start = "",
  end = "",
  attributes = "all",
  measures = "all"
)

Arguments

provider

the name of the provider
dataflow

dataflow of the time series
key

timeseries key - optional
filter

optional filter to be applied - optional
start

the start time - optional
end

the end time - optional
attributes

the comma separated list of attributes to be returned - optional, default='all', 'none' for no attributes
measures

the comma separated list of measures to be returned - optional, default='all', 'none' for no measures

Examples

## Not run: 
# SDMX V3

## get single time series: 
my_ts=getTimeSeries2('ECB', dataflow='EXR', key='A.USD.EUR.SP00.A')
## get all available frequencies: 
my_ts=getTimeSeries2('ECB', dataflow='EXR', key='.USD.EUR.SP00.A')

#or

#' ## get single time series: EXR.A.USD.EUR.SP00.A
my_ts=getTimeSeries2('ECB', dataflow='EXR', 
filter='c[FREQ]=A&c[CURRENCY]=USD&c[CURRENCY_DENOM]=EUR&c[EXR_TYPE]=SP00&c[EXR_SUFFIX]=A')
## get monthly and annual frequency: 
my_ts=getTimeSeries2('ECB', dataflow='EXR', 
filter='c[FREQ]=A,M&c[CURRENCY]=USD&c[CURRENCY_DENOM]=EUR&c[EXR_TYPE]=SP00&c[EXR_SUFFIX]=A')
## get all available frequencies: 
my_ts=getTimeSeries2('ECB', dataflow='EXR', 
filter='c[CURRENCY]=USD&c[CURRENCY_DENOM]=EUR&c[EXR_TYPE]=SP00&c[EXR_SUFFIX]=A')

## End(Not run)

get data revisions

Description

Extract time series starting from a specific update time and with history of revisions. This function works as getTimeSeriesTable but the query can be narrowed to getting only observations that were updated after a specific point in time, and eventually it returns the revision history of the matching time series.

The result is packed into a data.frame

Usage

getTimeSeriesRevisions(provider, id, start = "", end = "",
  updatedAfter = "", includeHistory = TRUE)

Arguments

id

identifier of the time series
provider

the name of the provider
end

the end time - optional
start

the start time - optional
updatedAfter

the updatedAfter time - optional. It has to be in the form: 'YYYY-MM-DD'
includeHistory

boolean parameter - optional. If TRUE the full list of revisions will be returned

Details

getTimeSeriesRevisions(provider, id, start, end, updatedAfter, includeHistory)

Examples

## Not run: 
  # get single time series with history:
  my_ts=getTimeSeriesRevisions('ECB','EXR.A.USD.EUR.SP00.A', includeHistory=TRUE)

  # get single time series (only observations updated after january 1st 2015):
  my_ts=getTimeSeriesRevisions('ECB','EXR.A.USD.EUR.SP00.A',
                   updatedAfter='2015', includeHistory=FALSE)

  # get single time series (full revision history starting from january 1st 2015):
  my_ts=getTimeSeriesRevisions('ECB','EXR.A.USD.EUR.SP00.A', 
                   updatedAfter='2015', includeHistory=TRUE)

## End(Not run)

get time series and return a data.frame

Description

Extract a list of time series identified by the parameters provided in input, and return a data.frame as result.

getTimeSeriesTable(provider, id, start, end, gregorianTime)

Usage

getTimeSeriesTable(provider, id, start='', end='', gregorianTime=F)

Arguments

id

identifier of the time series
provider

the name of the provider
end

the end time - optional
start

the start time - optional
gregorianTime

set to true to have all daily dates - optional

Examples

## Not run: 
  # SDMX V2
## get single time series:
my_ts=getTimeSeriesTable('ECB',id='EXR.A.USD.EUR.SP00.A')
## get monthly and annual frequency: 
my_ts=getTimeSeriesTable('ECB',id='EXR.A+M.USD.EUR.SP00.A')
## get all available frequencies: 
my_ts=getTimeSeriesTable('ECB',id='EXR..USD.EUR.SP00.A')


## End(Not run)

get time series and return a data.frame (SDMX v3)

Description

Extract a list of time series identified by the parameters provided in input, and return a data.frame as result.

Usage

getTimeSeriesTable2(
  provider,
  dataflow,
  key = "",
  filter = "",
  start = "",
  end = "",
  attributes = "all",
  measures = "all",
  updatedAfter = .jnull(),
  includeHistory = FALSE,
  gregorianTime = F
)

Arguments

provider

the name of the provider
dataflow

dataflow of the time series
key

timeseries key
filter

optional filter to be applied
start

the start time - optional
end

the end time - optional
attributes

the comma separated list of attributes to be returned - optional, default='all', 'none' for no attributes
measures

the comma separated list of measures to be returned - optional, default='all', 'none' for no measures
updatedAfter

return only changes after this date - optional
includeHistory

include history of revisions - optional, default=false
gregorianTime

set to true to have all daily dates - optional

Examples

## Not run: 
# SDMX V3

## get single time series: 
my_ts=getTimeSeriesTable('ECB', dataflow='EXR', key='A.USD.EUR.SP00.A')
## get monthly and annual frequency: 
my_ts=getTimeSeriesTable('ECB', dataflow='EXR', key='A+M.USD.EUR.SP00.A')
## get all available frequencies: 
my_ts=getTimeSeriesTable('ECB', dataflow='EXR', key='.USD.EUR.SP00.A')

#or

## get single time series: EXR.A.USD.EUR.SP00.A
my_ts=getTimeSeriesTable('ECB', dataflow='EXR', 
filter='c[FREQ]=A&c[CURRENCY]=USD&c[CURRENCY_DENOM]=EUR&c[EXR_TYPE]=SP00&c[EXR_SUFFIX]=A')
## get monthly and annual frequency: 
my_ts=getTimeSeriesTable('ECB', dataflow='EXR', 
filter='c[FREQ]=A,M&c[CURRENCY]=USD&c[CURRENCY_DENOM]=EUR&c[EXR_TYPE]=SP00&c[EXR_SUFFIX]=A')
## get all available frequencies: 
my_ts=getTimeSeriesTable('ECB', dataflow='EXR', 
filter='c[CURRENCY]=USD&c[CURRENCY_DENOM]=EUR&c[EXR_TYPE]=SP00&c[EXR_SUFFIX]=A')

## End(Not run)

convert time series to data.frame

Description

This function is used to transform the output of the getSDMX (or getTimeseries) functions from a list of time series to a data.frame. The metadata can be requested by explicitly passing the appropriate parameters.

Usage

sdmxdf(tslist, meta = FALSE, id = TRUE)

Arguments

tslist

the list of time series to be converted
meta

set this to TRUE if you want metadata to be included (default: FALSE, as this may increase the size of the result quite a bit)
id

set this to FALSE if you do not want the time series id to be included (default: TRUE)

Details

sdmxdf()

Examples

## Not run: 
a=getSDMX('ECB', 'EXR.A|Q|M|D.USD.EUR.SP00.A')
ddf = sdmxdf(a)
ddf = sdmxdf(a, meta=TRUE)

## End(Not run)

open helper

Description

Open a helper graphical application. This function opens a small sdmx metadata browser that can be helpful when building queries.

Usage

sdmxHelp(internalJVM = T)

Arguments

internalJVM

TRUE (default) if the GUI has to live in the R JVM. Set this to FALSE in MAC, to avoid issue #41

Details

sdmxHelp()

Examples

## Not run: 
#opens the helper in the R JVM
sdmxHelp()
#opens the helper in an external JVM
sdmxHelp(FALSE)

## End(Not run)

set Credentials for authenticating providers

Description

Sets the credentials for providers that need authentication

Usage

setProviderCredentials(provider, user=.jnull(), pw=.jnull())

Arguments

provider

the name of the provider
user

the username
pw

the password