On 16.01.2019 17:00, Thierry Onkelinx wrote:
Dear all,
I'm working on a package "foo" which has a dataframe stored in
"data/foo.txt". The DESCRIPTION has "LazyData: true". Functions can use
the object "foo". e.g.
foo is not regisrered in the namespace and you are relying on search
path order now.
If you want to have data objects you want to use in functions but which
are not necesarily available via data() calls, use the sysdata
mechanism. From WRE:
"if the R subdirectory contains a file sysdata.rda (a
saved image of one or more R objects: please use suitable compression as
suggested by tools::resaveRdaFiles, and see also the
‘SysDataCompression’ DESCRIPTION field.) this will be lazy-loaded into
the namespace environment – this is intended for system datasets that
are not intended to be user-accessible via data"
Best,
Uwe Ligges
bar <- function() {
summary(foo)
}
However, R CMD check throws the "undefined global variable" error.
What is the proper way to use txt data in a package?
Best regards,
Thierry
ir. Thierry Onkelinx
Statisticus / Statistician
Vlaamse Overheid / Government of Flanders
INSTITUUT VOOR NATUUR- EN BOSONDERZOEK / RESEARCH INSTITUTE FOR NATURE AND
FOREST
Team Biometrie & Kwaliteitszorg / Team Biometrics & Quality Assurance
thierry.onkel...@inbo.be
Havenlaan 88 bus 73, 1000 Brussel
www.inbo.be
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