Hi all and thanks for help,

 

I have a shapefile "canopy_height.shp" with two column "a" and "b". I wish
to do a-b and to obtain a third column ("a-b"). I am using the R+SAGA
module: "Table calculator for shapes", and all run good, but when I open the
shape-file after (in ARCMAP)  I don't see the third column. There is a
option to save a new shape-file? 

 

Thanks for Help

 

Ale

 

 

SAGA CMD 2.0.3

library path:   C:\Windows/modules

library name:   table_calculus

module name :   Table calculator for shapes

author      :   

 

error: executing module [Table calculator for shapes]

Usage: -silent -SHAPES <str> [-FORMULA <str>] [-NAME <str>]

  -SHAPES:<str>         Shapes

        Shapes (input)

  -FORMULA:<str>        Formula

        Text

  -NAME:<str>           Field Name

        Text

The value for the option 'SHAPES' must be specified.

 

 

> rsaga.geoprocessor(lib="table_calculus", module=2,
param=list(SHAPES="canopy_height.shp", FORMULA="a-b", NAME="a-b"))

 

SAGA CMD 2.0.3

library path:   C:\Windows/modules

library name:   table_calculus

module name :   Table calculator for shapes

author      :   

Load shapes: canopy_height.shp...

 

 

 

 

Parameters

 

 

 

 

Shapes: canopy_height.shp

Formula: a-b

Field Name: a-b


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