[GRASS-user] v.class.mlR Error

[Helmut Kudrnovsky]

>I committed a patch in r72758 which now correctly applies the replace()
>call to all tempfiles created. Please test. 

tested now with export to files:

-------------------
v.class.mlR -i segments_map=lsat7_segs_stats at user1
training_map=training at user1 train_class_column=class
output_class_column=vote1 output_prob_column=prob1 folds=5 partitions=10
tunelength=10 weighting_metric=accuracy
classification_results=D:\temp\vclassr\f1.txt
accuracy_file=D:\temp\vclassr\f2.txt model_details=D:\temp\vclassr\f3.txt
bw_plot_file=D:\temp\vclassr\bw.png
r_script_file=D:\temp\vclassr\myRscript.R processes=4
Running R now. Following output is R output.
Loading required package: caret
Loading required package: lattice
Loading required package: ggplot2
Loading required package: foreach
Loading required package: iterators
Loading required package: parallel
Warning message:
In nominalTrainWorkflow(x = x, y = y, wts = weights, info = trainInfo,  :
  There were missing values in resampled performance measures.
Error in file(file, ifelse(append, "a", "w")) : 
  cannot open the connection
Calls: write.csv -> eval.parent -> eval -> eval -> write.table -> file
In addition: Warning message:
In file(file, ifelse(append, "a", "w")) :
  cannot open file 'D:	empclassr1.txt': Invalid argument
Execution halted
ERROR: There was an error in the execution of the R script.
Please check the R output.
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
  File "C:\OSGEO4~1\apps\Python27\lib\atexit.py", line 24,
in _run_exitfuncs
    func(*targs, **kargs)
  File "C:\Users\hkmyr\AppData\Roaming\GRASS7\addons/scripts
/v.class.mlR.py", line 237, in cleanup
    gscript.try_remove(model_output_csvt)
NameError: global name 'model_output_csvt' is not defined
Error in sys.exitfunc:
Traceback (most recent call last):
  File "C:\OSGEO4~1\apps\Python27\lib\atexit.py", line 24,
in _run_exitfuncs
    func(*targs, **kargs)
  File "C:\Users\hkmyr\AppData\Roaming\GRASS7\addons/scripts
/v.class.mlR.py", line 237, in cleanup
    gscript.try_remove(model_output_csvt)
NameError: global name 'model_output_csvt' is not defined
(Fri Jun 01 18:55:30 2018) Command finished (2 min 22 sec)       
------------------

it seems the path to the first file f1.txt can't be resolved.

looking into myRscript.R

----
write.csv(resultsdf, 'D:\temp\vclassr\f1.txt', row.names=FALSE, quote=FALSE)
df_means <- data.frame(method=names(models.cv),accuracy=accuracy_means,
kappa=kappa_means)
write.csv(df_means, 'D:\temp\vclassr\f2.txt', row.names=FALSE, quote=FALSE)
sink('D:\temp\vclassr\f3.txt')
----

it seems also here is a / needed instead of \ within the path.



-----
best regards
Helmut
--
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