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context("Start() metadata reshaping")
# When data is reshaping (e.g., time_across = 'sdate'), the corresponding attribute should be reshaped too.
test_that("1. time across fyear, fyear depends on sdate", {
suppressWarnings(
data <- Start(dat = '/esarchive/exp/ecearth/a3w5/original_files/cmorfiles/DCPP/EC-Earth-Consortium/EC-Earth3/dcppA-hindcast/$member$/day/$var$/gr/v20210910/$var$_day_EC-Earth3_dcppA-hindcast_s$sdate$-$member$_gr_$fyear$.nc',
var = 'tasmin',
lat = indices(1),
lon = indices(1),
sdate = paste0(1960:1961),
time = 62:426, ## Jan to Dec (initialised in Nov)
time_across = 'fyear',
merge_across_dims = TRUE,
fyear = 'all',
fyear_depends = 'sdate',
member = 'r1i4p1f1',
synonims = list(lat = c('lat','latitude'),
lon = c('lon','longitude')),
return_vars = list(lat = NULL, lon = NULL,
time = c('sdate', 'fyear')),
retrieve = TRUE)
)
dates <- attr(data,'Variables')$common[['time']]
expect_equal(
dim(dates),
c(sdate = 2, time = 365)
)
expect_equal(
dim(drop(data)),
dim(dates)
)
expect_equal(
length(attributes(dates)),
4
)
expect_equal(
all(names(attributes(dates)) %in% c('variables', 'dim', 'class', 'tzone')),
TRUE
)
expect_equal(
class(dates),
c("POSIXct", "POSIXt")
)
expect_equal(
as.vector(dates[1, ]),
as.vector(seq(as.POSIXct('1961-01-01 12:00:00', tz = 'UTC'), as.POSIXct('1961-12-31 12:00:00', tz = 'UTC'), by = 'day'))
as.vector(dates[2, ]),
as.vector(seq(as.POSIXct('1962-01-01 12:00:00', tz = 'UTC'), as.POSIXct('1962-12-31 12:00:00', tz = 'UTC'), by = 'day'))
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)
})
test_that("2. time across fyear, only one sdate", {
suppressWarnings(
data <- Start(dat = '/esarchive/exp/ecearth/a3w5/original_files/cmorfiles/DCPP/EC-Earth-Consortium/EC-Earth3/dcppA-hindcast/$member$/day/$var$/gr/v20210910/$var$_day_EC-Earth3_dcppA-hindcast_s$sdate$-$member$_gr_$fyear$.nc',
var = 'tasmin',
lat = indices(1),
lon = indices(1),
sdate = paste0(1960),
time = 62:426, ## Jan to Dec (initialised in Nov)
time_across = 'fyear',
merge_across_dims = TRUE,
fyear = 'all',
# fyear_depends = 'sdate',
member = 'r1i4p1f1',
synonims = list(lat = c('lat','latitude'),
lon = c('lon','longitude')),
return_vars = list(lat = NULL, lon = NULL,
time = c('fyear')),
retrieve = TRUE)
)
dates <- attr(data,'Variables')$common[['time']]
expect_equal(
dim(dates),
c(time = 365)
)
expect_equal(
length(data),
length(dates)
)
expect_equal(
as.vector(dates),
as.vector(seq(as.POSIXct('1961-01-01 12:00:00', tz = 'UTC'), as.POSIXct('1961-12-31 12:00:00', tz = 'UTC'), by = 'day'))
)
})
test_that("3. time across fyear, fyear depends on sdate, 1st fyear is empty, 3rd fyear has more indices than 2nd one, 1964 is leap year", {
suppressWarnings(
data <- Start(dat = '/esarchive/exp/ecearth/a3w5/original_files/cmorfiles/DCPP/EC-Earth-Consortium/EC-Earth3/dcppA-hindcast/$member$/day/$var$/gr/v20210910/$var$_day_EC-Earth3_dcppA-hindcast_s$sdate$-$member$_gr_$fyear$.nc',
var = 'tasmin',
lat = indices(1),
lon = indices(1),
sdate = paste0(1960:1961),
day = 700:860, ## initialised in Nov
day_across = 'fyear',
merge_across_dims = TRUE,
fyear = 'all',
fyear_depends = 'sdate',
member = 'r1i4p1f1',
synonims = list(lat = c('lat','latitude'),
lon = c('lon','longitude'),
day = c('day', 'time')),
day = c('sdate', 'fyear')),
retrieve = TRUE)
)
dates <- attr(data,'Variables')$common[['time']]
expect_equal(
dim(dates),
c(sdate = 2, time = 161)
)
expect_equal(
length(attributes(dates)),
4
)
expect_equal(
all(names(attributes(dates)) %in% c('variables', 'dim', 'class', 'tzone')),
TRUE
)
expect_equal(
class(dates),
c("POSIXct", "POSIXt")
)
expect_equal(
as.vector(dates[1, ]),
as.vector(seq(as.POSIXct('1962-10-01 12:00:00', tz = 'UTC'), as.POSIXct('1963-03-10 12:00:00', tz = 'UTC'), by = 'day'))
)
expect_equal(
as.vector(dates[2, ]),
as.vector(seq(as.POSIXct('1963-10-01 12:00:00', tz = 'UTC'), as.POSIXct('1964-03-09 12:00:00', tz = 'UTC'), by = 'day'))
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test_that("4. merge and split time dim", {
datess <- seq(as.POSIXct('1994-05-01', tz = 'UTC'), as.POSIXct('1994-12-31', tz = 'UTC'), by = 'days')
datess <- c(datess[c(1:31, 32:62, 62:92, 93:123, 124:154, 154:184, 185:215, 215:245)])
datess <- as.POSIXct(array(datess, dim = c(time = 31, sdate = 8)),
origin = '1970-01-01', tz = 'UTC')
dates_file <- sort(unique(gsub('-', '', sapply(as.character(datess),
substr, 1, 7))))
suppressWarnings(
data <- Start(dat = paste0('/esarchive/recon/ecmwf/erainterim/6hourly/',
'$var$/$var$_$file_date$.nc'),
var = 'tas',
file_date = dates_file,
time = values(datess), #[time = 31, sdate = 8]
latitude = indices(1),
longitude = indices(1),
time_var = 'time',
#because time is assigned by 'values', set the tolerance to avoid too distinct match
time_tolerance = as.difftime(1, units = 'hours'),
#time values are across all the files
time_across = 'file_date',
#combine time and file_date dims
merge_across_dims = TRUE,
#exclude the additional NAs generated by merge_across_dims
merge_across_dims_narm = TRUE,
#split time dim, because it is two-dimensional
split_multiselected_dims = TRUE,
return_vars = list(latitude = NULL,
longitude = NULL,
time = 'file_date'),
retrieve = TRUE)
)
dates <- attr(data,'Variables')$common[['time']]
expect_equal(
dim(dates),
c(time = 31, sdate = 8)
)
expect_equal(
length(attributes(dates)),
4
)
expect_equal(
all(names(attributes(dates)) %in% c('variables', 'dim', 'class', 'tzone')),
TRUE
)
expect_equal(
class(dates),
c("POSIXct", "POSIXt")
)
expect_equal(
as.vector(dates),
as.vector(datess)
)
})
test_that("5. test 1 but merge_across_dims_narm = F", {
suppressWarnings(
data <- Start(dat = '/esarchive/exp/ecearth/a3w5/original_files/cmorfiles/DCPP/EC-Earth-Consortium/EC-Earth3/dcppA-hindcast/$member$/day/$var$/gr/v20210910/$var$_day_EC-Earth3_dcppA-hindcast_s$sdate$-$member$_gr_$fyear$.nc',
var = 'tasmin',
lat = indices(1),
lon = indices(1),
sdate = paste0(1960:1961),
time = 62:426, ## Jan to Dec (initialised in Nov)
time_across = 'fyear',
merge_across_dims = TRUE,
merge_across_dims_narm = F,
fyear = 'all',
fyear_depends = 'sdate',
member = 'r1i4p1f1',
synonims = list(lat = c('lat','latitude'),
lon = c('lon','longitude')),
return_vars = list(lat = NULL, lon = NULL,
time = c('sdate', 'fyear')),
retrieve = TRUE)
)
dates <- attr(data,'Variables')$common[['time']]
expect_equal(
dim(dates),
c(sdate = 2, time = 608)
)
expect_equal(
dim(drop(data)),
dim(dates)
)
expect_equal(
length(attributes(dates)),
4
)
expect_equal(
all(names(attributes(dates)) %in% c('variables', 'dim', 'class', 'tzone')),
TRUE
)
expect_equal(
class(dates),
c("POSIXct", "POSIXt")
)
expect_equal(
as.vector(dates[1, ]),
c(as.vector(seq(as.POSIXct('1961-01-01 12:00:00', tz = 'UTC'), as.POSIXct('1961-12-31 12:00:00', tz = 'UTC'), by = 'day')), rep(NA, 243))
)
expect_equal(
as.vector(dates[2, ]),
c(as.vector(seq(as.POSIXct('1962-01-01 12:00:00', tz = 'UTC'), as.POSIXct('1962-12-31 12:00:00', tz = 'UTC'), by = 'day')), rep(NA, 243))
)
})
test_that("6. split dim only", {
datess <- seq(as.POSIXct('1994-07-01', tz = 'UTC'), as.POSIXct('1994-07-14', tz = 'UTC'), by = 'days')
datess <- as.POSIXct(array(datess, dim = c(time = 7, week = 2)),
origin = '1970-01-01', tz = 'UTC')
data <- Start(dat = paste0('/esarchive/recon/ecmwf/erainterim/6hourly/',
'$var$/$var$_199407.nc'),
var = 'tas',
# file_date = '199407',
time = values(datess), #[time = 7, week = 2]
latitude = indices(1),
longitude = indices(1),
time_var = 'time',
time_tolerance = as.difftime(1, units = 'hours'),
# time_across = 'file_date',
# merge_across_dims = TRUE,
split_multiselected_dims = TRUE,
return_vars = list(latitude = NULL,
longitude = NULL,
time = NULL), #'file_date'),
retrieve = TRUE)
dates <- attr(data,'Variables')$common[['time']]
expect_equal(
dim(dates),
c(time = 7, week = 2)
)
expect_equal(
dim(drop(data)),
dim(dates)
)
expect_equal(
length(attributes(dates)),
4
)
expect_equal(
all(names(attributes(dates)) %in% c('variables', 'dim', 'class', 'tzone')),
TRUE
)
expect_equal(
class(dates),
c("POSIXct", "POSIXt")
)
expect_equal(
as.vector(dates[, ]),
as.vector(seq(as.POSIXct('1994-07-01', tz = 'UTC'), as.POSIXct('1994-07-14', tz = 'UTC'), by = 'day'))
)
})
test_that("7. split dim + merge + merge_narm = F", {
datess <- seq(as.POSIXct('1994-07-01', tz = 'UTC'), as.POSIXct('1994-08-31', tz = 'UTC'), by = 'days')
datess <- as.POSIXct(array(datess, dim = c(time = 31, month = 2)),
origin = '1970-01-01', tz = 'UTC')
data <- Start(dat = paste0('/esarchive/recon/ecmwf/erainterim/6hourly/',
'$var$/$var$_$file_date$.nc'),
var = 'tas',
file_date = c('199407', '199408'),
time = values(datess), #[time = 31, month = 2]
latitude = indices(1),
longitude = indices(1),
time_var = 'time',
time_tolerance = as.difftime(1, units = 'hours'),
time_across = 'file_date',
merge_across_dims = TRUE,
merge_across_dims_narm = F,
split_multiselected_dims = TRUE,
return_vars = list(latitude = NULL,
longitude = NULL,
time = 'file_date'),
retrieve = TRUE)
dates <- attr(data,'Variables')$common[['time']]
expect_equal(
dim(dates),
c(time = 31, month = 2)
)
expect_equal(
dim(drop(data)),
dim(dates)
)
expect_equal(
length(attributes(dates)),
4
)
expect_equal(
all(names(attributes(dates)) %in% c('variables', 'dim', 'class', 'tzone')),
TRUE
)
expect_equal(
class(dates),
c("POSIXct", "POSIXt")
)
expect_equal(
as.vector(dates[, ]),
as.vector(seq(as.POSIXct('1994-07-01', tz = 'UTC'), as.POSIXct('1994-08-31', tz = 'UTC'), by = 'day'))
)
})
test_that("8. test 1 but retrieve = F", {
suppressWarnings(
data <- Start(dat = '/esarchive/exp/ecearth/a3w5/original_files/cmorfiles/DCPP/EC-Earth-Consortium/EC-Earth3/dcppA-hindcast/$member$/day/$var$/gr/v20210910/$var$_day_EC-Earth3_dcppA-hindcast_s$sdate$-$member$_gr_$fyear$.nc',
var = 'tasmin',
lat = indices(1),
lon = indices(1),
sdate = paste0(1960:1961),
time = 62:426, ## Jan to Dec (initialised in Nov)
time_across = 'fyear',
merge_across_dims = TRUE,
fyear = 'all',
fyear_depends = 'sdate',
member = 'r1i4p1f1',
synonims = list(lat = c('lat','latitude'),
lon = c('lon','longitude')),
return_vars = list(lat = NULL, lon = NULL,
time = c('sdate', 'fyear')),
retrieve = FALSE)
)
dates <- attr(data,'Variables')$common[['time']]
})