How I can extract the text of R Std Output (R snippet) automatically ?

KNIME Extensions
1

Hi everybody,

I would like to extract the text which from R Std Output (R snippet) automatically in image or pdf. 

Can you help me ?

 

2

One option may be to use the R Snippet node: https://stackoverflow.com/questions/39724362/text-to-pdf-in-r

Alternatively you may consider using the BIRT reporting tool to more easily format your output: https://www.knime.org/knime-online-self-training-lesson-6

3

Hi Robunie!

This is a hack, and nobody guarantees for this working for any version of KNIME, so please handle with care. ;-)

There is a hidden knime.stdout variable, which is used to capture the output of R, which is printed to the console during execution. This is not technically all of R Std Output, but it gets close:

print("Hello World")
knime.out <- data.frame(knime.stdout) // data.frame containing: [1] "Hello World"

I hope this helps! Converting the String cell into some pdf can probably be acchieved with what Jon suggested (e.g. BIRT).

Cheers, Jonathan.

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