[R] Unexpected parameter problem using rsaga.geoprocessor() {RSAGA}

[Alexander Brenning]

Dear Amelie,

 > Le service Beep n'est pas lanc‚.

this can be fixed by passing an additional argument beep.off = FALSE to 
the rsaga.geoprocessor function; the most recent RSAGA release on CRAN 
does not cause this problem any more, I recommend you to update the 
package in your installation. The beep.off thing was an attempt to stop 
SAGA from beeping each time a module has been executed.

 > Unexpected parameter 'and'

If a file path or file name contains spaces as in "Documents and 
Settings", you would have to double quote it, e.g.,
   '"My Folder"'
rather than
    "My Folder"
This will make sure that SAGA knows that the space does not separate 
different arguments. After all, RSAGA uses the SAGA command line interface.
However, it is always a good idea to use the setwd() function to change 
the working directory. This will keep the path short.

I hope this helps.
   Alex

P.S.: You might wish to consider the R-sig-geo list for questions 
regarding spatial/GIS support in R.



Amélie Lescroël wrote:
> Hello,
> I discovered SAGA, an interesting free GIS, a few days ago and now, I 
> would like to use it from within R 2.6.2 using the RSAGA package. I read 
> the documentation for this package and thought that I understood it 
> correctly for trying to call some of the SAGA modules. For getting the 
> information on the usage of and arguments required by the SAGA command 
> line "Import Binary Raw Data" module, I used:
> 
>  > rsaga.get.usage("io_grid", 4)
> SAGA CMD 2.0.3
> library path: C:/Progra~1/saga_vc/modules
> library name: io_grid
> module name : Import Binary Raw Data
> Usage: 4 [-GRID <str>] [-FILE_DATA <str>] [-NX <num>] [-NY <num>] [-DXY 
> <str>] [-XMIN <str>] [-YMIN <str>] [-UNIT <str>] [-ZFACTOR <str>] 
> [-NODATA <str>] [-DATA_OFFSET <num>] [-LINE_OFFSET <num>] [-LINE_ENDSET 
> <num>] [-DATA_TYPE <num>] [-BYTEORDER_BIG <num>] [-TOPDOWN <num>]
> -GRID:<str> Grid
> Data Object (optional output)
> -FILE_DATA:<str> Raw Data File
> File path
> -NX:<num> Cell Count (X)
> Integer
> -NY:<num> Cell Count (Y)
> Integer
> -DXY:<str> Cell Size
> Floating point
> -XMIN:<str> Left Border (X)
> Floating point
> -YMIN:<str> Lower Border (Y)
> Floating point
> -UNIT:<str> Unit Name
> Text
> -ZFACTOR:<str> Z Multiplier
> Floating point
> -NODATA:<str> No Data Value
> Floating point
> -DATA_OFFSET:<num> Data Offset (Bytes)
> Integer
> -LINE_OFFSET:<num> Line Offset (Bytes)
> Integer
> -LINE_ENDSET:<num> Line Endset (Bytes)
> Integer
> -DATA_TYPE:<num> Data Type
> Choice
> Available Choices:
> [0] 1 Byte Integer (unsigned)
> [1] 1 Byte Integer (signed)
> [2] 2 Byte Integer (unsigned)
> [3] 2 Byte Integer (signed)
> [4] 4 Byte Integer (unsigned)
> [5] 4 Byte Integer (signed)
> [6] 4 Byte Floating Point
> [7] 8 Byte Floating Point
> -BYTEORDER_BIG:<num> Byte Order
> Choice
> Available Choices:
> [0] Little Endian (Intel)
> [1] Big Endian (Motorola)
> -TOPDOWN:<num> Line Order
> Choice
> Available Choices:
> [0] Bottom to Top
> [1] Top to Bottom
> 
> Then, I wrote the following command for importing a grid of binary raw 
> data while specifying the parameters I usually enter under SAGA:
> 
>  > rsaga.geoprocessor("io_grid", 4, list(GRID="199710.sgrd", 
> FILE_DATA="C:/Documents and Settings/lescroel/Mes 
> documents/pub/DATASETS/seaice/polar-stereo/nasateam/final-gsfc/south/monthly/nt_199710_f13_v01_s.bin", 
> NX=316, NY=332, DXY=25, XMIN=-3950, DATA_OFFSET=300, TOPDOWN=1))
> 
> and I got:
> 
> Le service Beep n'est pas lanc‚.
> 
> Vous obtiendrez une aide suppl‚mentaire en entrant NET HELPMSG 3521.
> 
> 
> C:\Documents and 
> Settings\lescroel\Bureau>C:\Progra~1\saga_vc\saga_cmd.exe io_grid 4 
> -silent -GRID 199710.sgrd -FILE_DATA C:\Documents and 
> Settings\lescroel\Mes 
> documents\pub\DATASETS\seaice\polar-stereo\nasateam\final-gsfc\south\monthly\nt_199710_f13_v01_s.bin 
> -NX 316 -NY 332 -DXY 25 -XMIN -3950 -DATA_OFFSET 300 -TOPDOWN 1
> 
> SAGA CMD 2.0.3
> library path: C:/Progra~1/saga_vc/modules
> library name: io_grid
> module name : Import Binary Raw Data
> author : (c) 2003 by O.Conrad
> 
> error: executing module [Import Binary Raw Data]
> Usage: -silent [-GRID <str>] [-FILE_DATA <str>] [-NX <num>] [-NY <num>] 
> [-DXY <str>] [-XMIN <str>] [-YMIN <str>] [-UNIT <str>] [-ZFACTOR <str>] 
> [-NODATA <str>] [-DATA_OFFSET <num>] [-LINE_OFFSET <num>] [-LINE_ENDSET 
> <num>] [-DATA_TYPE <num>] [-BYTEORDER_BIG <num>] [-TOPDOWN <num>]
> -GRID:<str> Grid
> Data Object (optional output)
> -FILE_DATA:<str> Raw Data File
> File path
> -NX:<num> Cell Count (X)
> Integer
> -NY:<num> Cell Count (Y)
> Integer
> -DXY:<str> Cell Size
> Floating point
> -XMIN:<str> Left Border (X)
> Floating point
> -YMIN:<str> Lower Border (Y)
> Floating point
> -UNIT:<str> Unit Name
> Text
> -ZFACTOR:<str> Z Multiplier
> Floating point
> -NODATA:<str> No Data Value
> Floating point
> -DATA_OFFSET:<num> Data Offset (Bytes)
> Integer
> -LINE_OFFSET:<num> Line Offset (Bytes)
> Integer
> -LINE_ENDSET:<num> Line Endset (Bytes)
> Integer
> -DATA_TYPE:<num> Data Type
> Choice
> Available Choices:
> [0] 1 Byte Integer (unsigned)
> [1] 1 Byte Integer (signed)
> [2] 2 Byte Integer (unsigned)
> [3] 2 Byte Integer (signed)
> [4] 4 Byte Integer (unsigned)
> [5] 4 Byte Integer (signed)
> [6] 4 Byte Floating Point
> [7] 8 Byte Floating Point
> -BYTEORDER_BIG:<num> Byte Order
> Choice
> Available Choices:
> [0] Little Endian (Intel)
> [1] Big Endian (Motorola)
> -TOPDOWN:<num> Line Order
> Choice
> Available Choices:
> [0] Bottom to Top
> [1] Top to Bottom
> Unexpected parameter 'and'
> 
> Could someone already using the RSAGA package provide some help in 
> telling me what I did wrong?
> Thanks for your help,
> 
> Amélie

-- 
Alexander Brenning
brenning at uwaterloo.ca - T +1-519-888-4567 ext 35783
Department of Geography and Environmental Management
University of Waterloo
200 University Ave. W - Waterloo, ON - Canada N2L 3G1
http://www.fes.uwaterloo.ca/geography/faculty/brenning/