I am having difficulty storing the output of a for loop I have generated. All I
want to do is find all the files that I have, create a string with all of the
names in quotes and separated by commas. This is proving more difficult than I
initially anticipated.
I am sure it is either very simple or the construction of the for loop is not
quite right
The result gets automatically printed after the loop but I can't seem to save
it.
I have tried to create the element in advance but the result is the same: NULL
individual.proj = Sys.glob("Arabica/proj_current/individual_projections/*.img",
dirmark = FALSE)
individual.proj
[1]
"Arabica/proj_current/individual_projections/proj_current_arabica_pa.data.tmp$pa.tab_Full_GBM.img"
[2]
"Arabica/proj_current/individual_projections/proj_current_arabica_pa.data.tmp$pa.tab_Full_GLM.img"
[3]
"Arabica/proj_current/individual_projections/proj_current_arabica_pa.data.tmp$pa.tab_Full_MARS.img"
[4]
"Arabica/proj_current/individual_projections/proj_current_arabica_pa.data.tmp$pa.tab_Full_RF.img"
[5]
"Arabica/proj_current/individual_projections/proj_current_arabica_pa.data.tmp$pa.tab_RUN10_GBM.img"
##generate loop to create string out of the table of projected files.
L.ip = length(individual.proj)
for (i in 1:L.ip){
individual.proj.i <- individual.proj[i]
individual.proj.quote = cat(paste('"', individual.proj.i, '"',
',',sep=""))
}
"Arabica/proj_current/individual_projections/proj_current_arabica_pa.data.tmp$pa.tab_Full_GBM.img","Arabica/proj_current/individual_projections/proj_current....
##print output string
individual.proj.quote
NULL
#command to be applied to individual.proj.quote to removed the final comma from
the string
substr(individual.proj.quote, 1, nchar(individual.proj.quote)-1)
Any help or pointers would be greatly appreciated, no amount of extensive
google searches have been fruitful so far.
******************
Jenny Williams
Spatial Information Scientist, GIS Unit
Herbarium, Library, Art & Archives Directorate
Royal Botanic Gardens, Kew
Richmond, TW9 3AB, UK
Tel: +44 (0)208 332 5277
email: [email protected]<mailto:[email protected]>
******************
Film: The Forgotten Home of Coffee - Beyond the
Gardens<http://www.youtube.com/watch?v=-uDtytKMKpA&sns=tw>
Stories: Coffee Expedition -
Ethiopia<http://storify.com/KewGIS/coffee-expedition-ethiopia>
Kew in Harapan Rainforest
Sumatra<http://storify.com/KewGIS/kew-in-harapan-rainforest>
Articles: Seeing the wood for the
trees<http://www.kew.org/ucm/groups/public/documents/document/kppcont_060602.pdf>
How Kew's GIS team and South East Asia botanists are working to help conserve
and restore a rainforest in Sumatra. Download a pdf of this article
here.<http://www.kew.org/ucm/groups/public/documents/document/kppcont_060602.pdf>
________________________________
The Royal Botanic Gardens, Kew is a non-departmental public body with exempt
charitable status, whose principal place of business is at Royal Botanic
Gardens, Kew, Richmond, Surrey TW9 3AB, United Kingdom.
The information contained in this email and any attachments is intended solely
for the addressee(s) and may contain confidential or legally privileged
information. If you have received this message in error, please return it
immediately and permanently delete it. Do not use, copy or disclose the
information contained in this email or in any attachment.
Any views expressed in this email do not necessarily reflect the opinions of
RBG Kew.
Any files attached to this email have been inspected with virus detection
software by RBG Kew before transmission, however you should carry out your own
virus checks before opening any attachments. RBG Kew accepts no liability for
any loss or damage which may be caused by software viruses.
[[alternative HTML version deleted]]
______________________________________________
[email protected] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
