library(classInt)

KNIME Extensions
1

Hi, 

In all my R installations I have the R package : classInt. I can call it from the R gui (even those located in the R Knime default installation) : D:\KNIME_2.10.4\plugins\org.knime.ext.r3.bin.win32.x86_3.0.3.0042976\R-Inst

with the instruction library(classInt)

when I try to use this same instruction  in an R view (Table) Node, I've got the error message : 

ERROR     R Snippet java.lang.IllegalStateException: Execution of R script failed: Erreur dans library(classInt) : aucun package nommé 'classInt' n'est trouvé
ERROR     R View (Table) Execute failed: Execution of R script failed: Erreur dans library(classInt) : aucun package nommé 'classInt' n'est trouvé.

Any hint ?

 

2

Looks like the node is using a different R installation. Please check the configuration.

3

Hi Thor,

Thank for your reply. The fact is, in Knime Preference I have :

R : D:\KNIME_2.10.4\plugins\org.knime.ext.r3.bin.win32.x86_3.0.3.0042976\R-Inst
R script : D:\KNIME_2.10.4\plugins\org.knime.ext.r3.bin.win32.x86_3.0.3.0042976\R-Inst

If I follow this link and type in the corresponding Rguide or more directly in the R.exe library(classInt) it works. Returning in Knime I have again in the R view (Table) :

ERROR     R Snippet java.lang.IllegalStateException: Execution of R script failed: Erreur dans library(classInt) : aucun package nommé 'classInt' n'est trouvé
ERROR     R View (Table) Execute failed: Execution of R script failed: Erreur dans library(classInt) : aucun package nommé 'classInt' n'est trouvé

I dowloaded other packages and it works perfectly. Only this one causes a problem.

 

4

Hi,

I really can't figure where the problem comes from but it seems that installling from R doesn't work properly on my machine. So I used knime to fill the good R library. After having downloaded the zip R packages in a special folder I just execute a workflow like in attachment to filll the proper R library directory and it works fine. If it can help somebody in the future...

5

Hi Fabien,

I have exactly the same problem about another package called "ROCR". I can call it from the R gui, but in KNIME :

ERROR    Execute failed: Execution of R script failed: Error in library("ROCR") : there is no package called ‘ROCR’.

I try to run your WF to unzip this package directly in my R "library" repository ... Without success.

Do you have any idea ?

Best regards,

Baptiste

 

 

6

Hi,

with my installation ROCR works. Check your R directory installation in "Preferences->Knime->R" for me it's "C:\Program Files\KNIME_2.10.4\plugins\org.knime.ext.r3.bin.win32.x86_3.0.3.0044664\R-Inst"

go to the library directory under it and check if you have the directory ROCR within it. If not unzip it and copy the directory ROCR you obtained after unzip.

Best regards

7

Hi,

I had not thought about that. Indeed, I used default R directory installation and in this case I haven't checked this setting. As a result, library(ROCR) works with my installation :-).

Thank you a lot for your help.

Kind regards

Baptiste

8

Hi,

I am getting this error and unable to resolve it.. can anyone help me in resolving this problem

ERROR R View (Table)       0:440:419  Execute failed: org.knime.core.node.KNIMEConstants.getKNIMETempPath()Ljava/nio/file/Path;

 

 

9

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