Accessor functions for the outputs slots in a simList object.
If a module saves a file to disk during events, it can be useful to keep track
of the files that are saved e.g., for saveSimList() so that all files can
be added to the archive. In addition to setting outputs at the simInit
stage, a module developer can also put this in a using any saving mechanism that
is relevant (e.g., qs::qsave, saveRDS etc.). When a module event does this
it can be useful to register that saved file. registerOutputs offers an additional
mechanism to do this. See examples.
outputs(sim)
# S4 method for class 'simList'
outputs(sim)
outputs(sim) <- value
# S4 method for class 'simList'
outputs(sim) <- value
registerOutputs(filename, sim, ...)
outputArgs(sim)
# S4 method for class 'simList'
outputArgs(sim)
outputArgs(sim) <- value
# S4 method for class 'simList'
outputArgs(sim) <- valueA simList. If missing, then the function will search in the call
stack, so it will find it if it is in a SpaDES module.
The object to be stored at the slot. See Details.
The filename to register in the outputs(sim) data.frame. If
missing, an attempt will be made to search for either a file or filename
argument in the call itself. This means that this function can be used with
the pipe, as long as the returned return from the upstream pipe function is
a filename or if it is NULL (e.g., saveRDS), then it will find the file
argument and use that.
Not used.
A simList which will be the sim passed in with a new object registered
in the outputs(sim)
These functions are one of three mechanisms to add information about which output files to save.
As arguments to a simInit call. Specifically, inputs or outputs.
See ?simInit.
With the outputs(simList) function call.
By adding a function called .inputObjects inside a module, which will be executed
during the simInit call. This last way is the most "modular" way to create
default data sets for your model.
See below for more details.
Note using registerOutputs: a user can pass any other
arguments to registerOutputs that are in the
outputs(sim) data.frame, such as objectName, fun, package, though these
will not be used to save the files as this function is only about
registering an output that has already been saved.
The automatic file type handling only adds the correct extension from a given
fun and package. It does not do the inverse, from a given extension find the
correct fun and package.
simInitoutputs accepts a data.frame similar to the inputs data.frame, but
with up to 6 columns.
| objectName | required, character string indicating the name of the object
in the simListthat will be saved to disk (without thesim$prefix). | 
| file | optional, a character string indicating the file path to save to.
The default is to concatenate objectNamewith the model timeunit andsaveTime, separated by underscore, '_'. So a default filename would be"Fires_year1.rds". | 
| fun | optional, a character string indicating the function to use to
save that file. The default is saveRDS() | 
| package | optional character string indicating the package in
which to find the fun); | 
| saveTime | optional numeric, indicating when in simulation time the file
should be saved. The default is the lowest priority at end(sim),
i.e., at the very end. | 
| arguments | is a list of lists of named arguments, one list for each fun. For example, iffun = "write.csv",arguments = list(row.names = TRUE)will pass the argumentrow.names = TRUEtowrite.csvIf there is only one list,
then it is assumed to apply to all files and will be recycled as per normal R
rules of recycling for eachfun. | 
See the modules vignette for more details (browseVignettes("SpaDES.core")).
registerOutputs() which enables files that are saved to be added to
the simList using the outputs(sim) mechanism, so the files that are saved
during a module event can be tracked at the simList level. saveSimList()
which will optionally add all the outputs that are tracked into an archive.
Plots(), outputs()
#######################
# outputs
#######################
tmpdir <- file.path(tempdir(), "outputs") |> checkPath(create = TRUE)
tmpFile <- file.path(tmpdir, "temp.rds")
tempObj <- 1:10
# Can add data.frame of outputs directly into simInit call
sim <- simInit(objects = c("tempObj"),
               outputs = data.frame(objectName = "tempObj"),
               paths = list(outputPath = tmpdir))
#> Setting:
#>   options(
#>     spades.outputPath = '/tmp/RtmpXxjf07/outputs'
#>   )
#> Paths set to:
#>   options(
#>     rasterTmpDir = '/tmp/RtmpXxjf07/scratch/raster'
#>     reproducible.cachePath = '/tmp/RtmpXxjf07/cache'
#>     spades.inputPath = '/tmp/RtmpXxjf07/inputs'
#>     spades.outputPath = '/tmp/RtmpXxjf07/outputs'
#>     spades.modulePath = '/tmp/RtmpXxjf07/sampleModules'
#>     spades.scratchPath = '/tmp/RtmpXxjf07/scratch'
#>   )
#>   terra::terraOptions(tempdir = '/tmp/RtmpXxjf07/scratch/terra'
#> Sep18 15:24:28 simInit Using setDTthreads(1). To change: 'options(spades.DTthreads = X)'.
#> Elapsed time for simInit: 0.03578305 secs
outputs(sim) # To see what will be saved, when, what filename
#>   objectName                                       file     fun package
#> 1    tempObj /tmp/RtmpXxjf07/outputs/tempObj_year10.rds saveRDS    base
#>   saveTime saved arguments
#> 1       10    NA        NA
sim <- spades(sim)
#> Sep18 15:24:28 simInit Using setDTthreads(1). To change: 'options(spades.DTthreads = X)'.
#> Sep18 15:24:28 chckpn:init total elpsd: 0.037 secs | 0 checkpoint init 0
#> Sep18 15:24:28 save  :init total elpsd: 0.039 secs | 0 save init 0
#> Sep18 15:24:28 prgrss:init total elpsd: 0.041 secs | 0 progress init 0
#> Sep18 15:24:28 load  :init total elpsd: 0.043 secs | 0 load init 0
#> Sep18 15:24:28 save  :spades total elpsd: 0.044 secs | 10 save spades 10
#> simList saved in
#> SpaDES.core:::savedSimEnv()$.sim
#> It will be deleted at next spades() call.
outputs(sim) # To see that it was saved, when, what filename
#>   objectName                                       file     fun package
#> 1    tempObj /tmp/RtmpXxjf07/outputs/tempObj_year10.rds saveRDS    base
#>   saveTime saved arguments
#> 1       10  TRUE        NA
# Also can add using assignment after a simList object has been made
sim <- simInit(objects = c("tempObj"), paths = list(outputPath = tmpdir))
#> Setting:
#>   options(
#>     spades.outputPath = '/tmp/RtmpXxjf07/outputs'
#>   )
#> Paths set to:
#>   options(
#>     rasterTmpDir = '/tmp/RtmpXxjf07/scratch/raster'
#>     reproducible.cachePath = '/tmp/RtmpXxjf07/cache'
#>     spades.inputPath = '/tmp/RtmpXxjf07/inputs'
#>     spades.outputPath = '/tmp/RtmpXxjf07/outputs'
#>     spades.modulePath = '/tmp/RtmpXxjf07/sampleModules'
#>     spades.scratchPath = '/tmp/RtmpXxjf07/scratch'
#>   )
#>   terra::terraOptions(tempdir = '/tmp/RtmpXxjf07/scratch/terra'
#> Sep18 15:24:28 simInit Using setDTthreads(1). To change: 'options(spades.DTthreads = X)'.
#> Elapsed time for simInit: 0.03289127 secs
outputs(sim) <- data.frame(objectName = "tempObj", saveTime = 1:10)
sim <- spades(sim)
#> Sep18 15:24:28 simInit Using setDTthreads(1). To change: 'options(spades.DTthreads = X)'.
#> Sep18 15:24:28 chckpn:init total elpsd: 0.034 secs | 0 checkpoint init 0
#> Sep18 15:24:28 save  :init total elpsd: 0.036 secs | 0 save init 0
#> Sep18 15:24:28 prgrss:init total elpsd: 0.038 secs | 0 progress init 0
#> Sep18 15:24:28 load  :init total elpsd: 0.04 secs | 0 load init 0
#> Sep18 15:24:28 save  :spades total elpsd: 0.041 secs | 1 save spades 10
#> Sep18 15:24:28 save  :later total elpsd: 0.046 secs | 2 save later 10
#> Sep18 15:24:28 save  :later total elpsd: 0.05 secs | 3 save later 10
#> Sep18 15:24:28 save  :later total elpsd: 0.055 secs | 4 save later 10
#> Sep18 15:24:28 save  :later total elpsd: 0.059 secs | 5 save later 10
#> Sep18 15:24:28 save  :later total elpsd: 0.064 secs | 6 save later 10
#> Sep18 15:24:28 save  :later total elpsd: 0.068 secs | 7 save later 10
#> Sep18 15:24:28 save  :later total elpsd: 0.072 secs | 8 save later 10
#> Sep18 15:24:28 save  :later total elpsd: 0.077 secs | 9 save later 10
#> Sep18 15:24:28 save  :later total elpsd: 0.081 secs | 10 save later 10
#> simList saved in
#> SpaDES.core:::savedSimEnv()$.sim
#> It will be deleted at next spades() call.
outputs(sim) # To see that it was saved, when, what filename.
#>    objectName saveTime                                       file     fun
#> 1     tempObj        1 /tmp/RtmpXxjf07/outputs/tempObj_year01.rds saveRDS
#> 2     tempObj        2 /tmp/RtmpXxjf07/outputs/tempObj_year02.rds saveRDS
#> 3     tempObj        3 /tmp/RtmpXxjf07/outputs/tempObj_year03.rds saveRDS
#> 4     tempObj        4 /tmp/RtmpXxjf07/outputs/tempObj_year04.rds saveRDS
#> 5     tempObj        5 /tmp/RtmpXxjf07/outputs/tempObj_year05.rds saveRDS
#> 6     tempObj        6 /tmp/RtmpXxjf07/outputs/tempObj_year06.rds saveRDS
#> 7     tempObj        7 /tmp/RtmpXxjf07/outputs/tempObj_year07.rds saveRDS
#> 8     tempObj        8 /tmp/RtmpXxjf07/outputs/tempObj_year08.rds saveRDS
#> 9     tempObj        9 /tmp/RtmpXxjf07/outputs/tempObj_year09.rds saveRDS
#> 10    tempObj       10 /tmp/RtmpXxjf07/outputs/tempObj_year10.rds saveRDS
#>    package saved arguments
#> 1     base  TRUE        NA
#> 2     base  TRUE        NA
#> 3     base  TRUE        NA
#> 4     base  TRUE        NA
#> 5     base  TRUE        NA
#> 6     base  TRUE        NA
#> 7     base  TRUE        NA
#> 8     base  TRUE        NA
#> 9     base  TRUE        NA
#> 10    base  TRUE        NA
# can do highly variable saving
tempObj2 <- paste("val", 1:10)
df1 <- data.frame(col1 = tempObj, col2 = tempObj2)
sim <- simInit(objects = c("tempObj", "tempObj2", "df1"),
  paths = list(outputPath = tmpdir))
#> Setting:
#>   options(
#>     spades.outputPath = '/tmp/RtmpXxjf07/outputs'
#>   )
#> Paths set to:
#>   options(
#>     rasterTmpDir = '/tmp/RtmpXxjf07/scratch/raster'
#>     reproducible.cachePath = '/tmp/RtmpXxjf07/cache'
#>     spades.inputPath = '/tmp/RtmpXxjf07/inputs'
#>     spades.outputPath = '/tmp/RtmpXxjf07/outputs'
#>     spades.modulePath = '/tmp/RtmpXxjf07/sampleModules'
#>     spades.scratchPath = '/tmp/RtmpXxjf07/scratch'
#>   )
#>   terra::terraOptions(tempdir = '/tmp/RtmpXxjf07/scratch/terra'
#> Sep18 15:24:28 simInit Using setDTthreads(1). To change: 'options(spades.DTthreads = X)'.
#> Elapsed time for simInit: 0.03260899 secs
outputs(sim) <- data.frame(
     objectName = c(rep("tempObj", 2), rep("tempObj2", 3), "df1"),
     saveTime = c(c(1, 4), c(2, 6, 7), end(sim)),
     fun = c(rep("saveRDS", 5), "write.csv"),
     package = c(rep("base", 5), "utils"),
     stringsAsFactors = FALSE)
# since write.csv has a default of adding a column, x, with rownames, must add additional
#   argument for 6th row in data.frame (corresponding to the write.csv function)
outputArgs(sim)[[6]] <- list(row.names = FALSE)
sim <- spades(sim)
#> Sep18 15:24:28 simInit Using setDTthreads(1). To change: 'options(spades.DTthreads = X)'.
#> Sep18 15:24:28 chckpn:init total elpsd: 0.034 secs | 0 checkpoint init 0
#> Sep18 15:24:28 save  :init total elpsd: 0.036 secs | 0 save init 0
#> Sep18 15:24:28 prgrss:init total elpsd: 0.038 secs | 0 progress init 0
#> Sep18 15:24:28 load  :init total elpsd: 0.039 secs | 0 load init 0
#> Sep18 15:24:28 save  :spades total elpsd: 0.041 secs | 1 save spades 10
#> Sep18 15:24:28 save  :later total elpsd: 0.046 secs | 2 save later 10
#> Sep18 15:24:28 save  :later total elpsd: 0.05 secs | 4 save later 10
#> Sep18 15:24:28 save  :later total elpsd: 0.055 secs | 6 save later 10
#> Sep18 15:24:28 save  :later total elpsd: 0.059 secs | 7 save later 10
#> Sep18 15:24:28 save  :later total elpsd: 0.064 secs | 10 save later 10
#> simList saved in
#> SpaDES.core:::savedSimEnv()$.sim
#> It will be deleted at next spades() call.
outputs(sim)
#>   objectName saveTime       fun package
#> 1    tempObj        1   saveRDS    base
#> 2    tempObj        4   saveRDS    base
#> 3   tempObj2        2   saveRDS    base
#> 4   tempObj2        6   saveRDS    base
#> 5   tempObj2        7   saveRDS    base
#> 6        df1       10 write.csv   utils
#>                                          file saved arguments
#> 1  /tmp/RtmpXxjf07/outputs/tempObj_year01.rds  TRUE        NA
#> 2  /tmp/RtmpXxjf07/outputs/tempObj_year04.rds  TRUE        NA
#> 3 /tmp/RtmpXxjf07/outputs/tempObj2_year02.rds  TRUE        NA
#> 4 /tmp/RtmpXxjf07/outputs/tempObj2_year06.rds  TRUE        NA
#> 5 /tmp/RtmpXxjf07/outputs/tempObj2_year07.rds  TRUE        NA
#> 6      /tmp/RtmpXxjf07/outputs/df1_year10.csv  TRUE     FALSE
# read one back in just to test it all worked as planned
newObj <- read.csv(dir(tmpdir, pattern = "year10.csv", full.name = TRUE))
newObj
#>    col1   col2
#> 1     1  val 1
#> 2     2  val 2
#> 3     3  val 3
#> 4     4  val 4
#> 5     5  val 5
#> 6     6  val 6
#> 7     7  val 7
#> 8     8  val 8
#> 9     9  val 9
#> 10   10 val 10
# using saving with SpaDES-aware methods
# To see current ones SpaDES can do
.saveFileExtensions()
#>   exts         fun package
#> 1  rds     saveRDS    base
#> 2   qs       qsave      qs
#> 5  grd writeRaster  raster
#> 7  tif writeRaster   terra
#> 6  shp writeVector   terra
#> 4  csv   write.csv   utils
#> 3  txt write.table   utils
library(terra)
ras <- rast(ncol = 4, nrow = 5)
ras[] <- 1:20
sim <- simInit(objects = c("ras"), paths = list(outputPath = tmpdir))
#> Setting:
#>   options(
#>     spades.outputPath = '/tmp/RtmpXxjf07/outputs'
#>   )
#> Paths set to:
#>   options(
#>     rasterTmpDir = '/tmp/RtmpXxjf07/scratch/raster'
#>     reproducible.cachePath = '/tmp/RtmpXxjf07/cache'
#>     spades.inputPath = '/tmp/RtmpXxjf07/inputs'
#>     spades.outputPath = '/tmp/RtmpXxjf07/outputs'
#>     spades.modulePath = '/tmp/RtmpXxjf07/sampleModules'
#>     spades.scratchPath = '/tmp/RtmpXxjf07/scratch'
#>   )
#>   terra::terraOptions(tempdir = '/tmp/RtmpXxjf07/scratch/terra'
#> Sep18 15:24:28 simInit Using setDTthreads(1). To change: 'options(spades.DTthreads = X)'.
#> Elapsed time for simInit: 0.03263044 secs
outputs(sim) <- data.frame(
  file = "test",
  fun = "writeRaster",
  package = "terra",
  objectName = "ras",
  stringsAsFactors = FALSE)
simOut <- spades(sim)
#> Sep18 15:24:28 simInit Using setDTthreads(1). To change: 'options(spades.DTthreads = X)'.
#> Sep18 15:24:28 chckpn:init total elpsd: 0.034 secs | 0 checkpoint init 0
#> Sep18 15:24:28 save  :init total elpsd: 0.036 secs | 0 save init 0
#> Sep18 15:24:28 prgrss:init total elpsd: 0.038 secs | 0 progress init 0
#> Sep18 15:24:28 load  :init total elpsd: 0.04 secs | 0 load init 0
#> Sep18 15:24:28 save  :spades total elpsd: 0.041 secs | 10 save spades 10
#> simList saved in
#> SpaDES.core:::savedSimEnv()$.sim
#> It will be deleted at next spades() call.
outputs(simOut)
#>                                      file         fun package objectName
#> 1 /tmp/RtmpXxjf07/outputs/test_year10.tif writeRaster   terra        ras
#>   saveTime saved arguments
#> 1       10  TRUE        NA
newRas <- rast(dir(tmpdir, full.name = TRUE, pattern = ".tif")[1])
all.equal(newRas, ras) # Should be TRUE
#> [1] TRUE
# Clean up after
unlink(tmpdir, recursive = TRUE)
# For `registerOutputs`
sim <- simInit()
#> Setting:
#>   options(
#>     reproducible.cachePath = '/tmp/RtmpXxjf07/cache'
#>     spades.inputPath = '/tmp/RtmpXxjf07/inputs'
#>     spades.outputPath = '/tmp/RtmpXxjf07'
#>     spades.modulePath = '/tmp/RtmpXxjf07/sampleModules'
#>     spades.scratchPath = '/tmp/RtmpXxjf07/scratch'
#>   )
#> Sep18 15:24:28 simInit Using setDTthreads(1). To change: 'options(spades.DTthreads = X)'.
#> Elapsed time for simInit: 0.02844858 secs
# This would normally be a save call, e.g., `writeRaster`
tf <- reproducible::tempfile2(fileext = ".tif")
sim <- registerOutputs(sim, filename = tf)
# Using a pipe
tf <- reproducible::tempfile2(fileext = ".rds")
sim$a <- 1
sim <- saveRDS(sim$a, tf) |> registerOutputs()
# confirm:
outputs(sim) # has object --> saved = TRUE
#>                                                          file    fun package
#>                                                        <char> <char>  <char>
#> 1: /tmp/RtmpXxjf07/reproducible/7rEYwkZN/file2a067d3393f9.tif   <NA>    <NA>
#> 2:  /tmp/RtmpXxjf07/reproducible/8kNWCDHb/file2a0653ce350.rds   <NA>    <NA>
#>    objectName saveTime  saved arguments
#>        <char>    <num> <lgcl>    <AsIs>
#> 1:       <NA>        0   TRUE        NA
#> 2:       <NA>        0   TRUE        NA