KNIME update problem and empty R plot

KNIME Analytics Platform
1

Hi all,

I wrote a code in R snippet by using ggplot2 library and code is attached below.

knime.out <- knime.in
library(ggplot2)
df2 <- data.frame(knime.in$"CR",knime.in$"Raw",knime.in$"out_toolName")
head(df2)
ggplot(df2,aes(knime.in$"CR", knime.in$"Raw", color=knime.in$"out_toolName")) + 
  geom_point() + 
  scale_color_manual(values = c('#999999','#E69F00')) + 
  theme(legend.position=c(0,1), legend.justification=c(0,1))

It returns a blank plot on the data I use or on randomly generated data.

However, same code works well on R 3.1.3.

I thought it might be due to a conflict between R version and KNIME version I use. So I wanted to install updates. Then I got following error.

Q1- What could be the reason of outputting an empty plot on KNIME? Could it be version conflict?

Q2- How can I solve conflicting dependency problem?

Cannot complete the install because of a conflicting dependency.
  Software being installed: KNIME Local Automation 2.12.1.0048751 (com.knime.features.localautomation.feature.group 2.12.1.0048751)
  Software currently installed: KNIME TeamSpace 3.6.0.0048041 (com.knime.features.explorer.sharedspace.feature.group 3.6.0.0048041)
  Only one of the following can be installed at once: 
    KNIME Nodes for the KNIME Explorer 3.6.1.0048740 (com.knime.explorer.nodes 3.6.1.0048740)
    KNIME Nodes for the KNIME Explorer 3.6.0.0047941 (com.knime.explorer.nodes 3.6.0.0047941)
  Cannot satisfy dependency:
    From: KNIME Explorer Nodes 3.6.0.0048041 (com.knime.features.explorer.nodes.feature.group 3.6.0.0048041)
    To: com.knime.explorer.nodes [3.6.0.0047941]
  Cannot satisfy dependency:
    From: KNIME Explorer Nodes 3.6.1.0048740 (com.knime.features.explorer.nodes.feature.group 3.6.1.0048740)
    To: com.knime.explorer.nodes [3.6.1.0048740]
  Cannot satisfy dependency:
    From: KNIME TeamSpace 3.6.0.0048041 (com.knime.features.explorer.sharedspace.feature.group 3.6.0.0048041)
    To: com.knime.features.explorer.nodes.feature.group [3.6.0.0048041]
  Cannot satisfy dependency:
    From: KNIME Local Automation 2.12.1.0048751 (com.knime.features.localautomation.feature.group 2.12.1.0048751)
    To: com.knime.features.explorer.nodes.feature.group [3.6.1.0048740]

2

Hey!

Just one thought:

The R Snippet node does not have an image outport. So how do you write your plot to the disk? There is no ggsave() or CairoXXX in your script...

Best,
Marc