Dear all, We need to run several queries in an R Markdown file. The queries have quit elaborate sql statements. We try to recude the amount of code in the markdown file by moving the query functions in a seperate R script which is sourced by the markdown file. The queries work fine if we place the code directly in the markdown file but fail when sourced. They return an empty data.frame with the correct colnames. We have attached a minimal example. Can someone tell us why the sourced functions give the a different output? Best regards, ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance Kliniekstraat 25 1070 Anderlecht Belgium To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher The plural of anecdote is not data. ~ Roger Brinner The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey ------------- volgend deel ------------ Een niet-tekst bijlage is gescrubt... Naam: QueriesTest.pdf Type: application/pdf Grootte: 103077 bytes Omschrijving: niet beschikbaar URL : <https://stat.ethz.ch/pipermail/r-help/attachments/20151204/f1bd4bcc/attachment.pdf>