ccafs (version 0.3.0)

cc_search: Search CCAFS data

Description

Search CCAFS data

Usage

cc_search(
  file_set = NULL,
  scenario = NULL,
  model = NULL,
  extent = NULL,
  format = NULL,
  period = NULL,
  variable = NULL,
  resolution = NULL,
  tile = NULL
)

Arguments

file_set

(integer) a file set, 2 through 12

scenario

(integer) a scenario, 1 through 10

model

(integer) a model, 1 through 89

extent

(character) an extent, 'global' or 'region'

format

(character) a format, 'ascii' or 'esri'

period

(integer) a period, 1 through 10

variable

(integer) a variable, 1 through 7, or 9999

resolution

(integer) a resolutions, 1 through 7

tile

(character) a tile defining a spatial area on the globe. one of A1-6, B1-6, or C1-6. See web interface for where those are located.

Value

character strings, one or more urls

Details

See ccafs-search for details on parameters.

note that some URLs will be for Amazon S3 and others will have different base URLS (e.g., http://gisweb.ciat.cgiar.org)

Output can be passed to cc_data_fetch(), and subsequently to cc_data_read()

Examples

# NOT RUN {
(res <- cc_search(file_set = 12, extent = "global", format = "ascii",
  period = 4, variable = 1, resolution = 4))

res <- cc_search(file_set = 7, extent = "region", format = "ascii",
  period = 9, variable = 5, resolution = 6)
cc_data_fetch(res[3])

# Alternatively, you can use the helper list
# where you can reference options by name
# the downside is that this is very verbose
(res <- cc_search(file_set = cc_params$file_set$`Delta method IPCC AR4`,
                  scenario = cc_params$scenario$`SRES B1`,
                  model = cc_params$model$bccr_bcm2_0,
                  extent = cc_params$extent$global,
                  format = cc_params$format$ascii,
                  period = cc_params$period$`2040s`,
                  variable = cc_params$variable$Precipitation,
                  resolution = cc_params$resolution$`5 minutes`))
# }