Strange behaviour of R graphics copied to PowerPoint
On 02/06/2013 1:15 PM, Erling Johan Fr?ysa wrote:
Hello, I am using R to create graphics, especially to plot time series charts. These charts are then copied as metafiles (for best quality) to a PowerPoint presentation and then saved to PDF (via the "Save As" dialog"). Attached is two pictures. The first picture shows how my chart looks like in the R Graphics window, and the second picture shows how the chart becomes after saving it to PDF. < http://r.789695.n4.nabble.com/file/n4668522/R.png> < http://r.789695.n4.nabble.com/file/n4668522/Rppt.png> As you can see. After saving the metafile to PDF via PowerPoint, some straight lines appears (it seems like all of the lines has the same origin in the upper left corner and ends somewhere on the times series line). This happens in both plot() and ggplot(). The problem appears more often when using daily data in my time series. With monthly data the problem don't exist. Have anyone experienced this before? Do you think the problem is related to R or to Powerpoint?
This has come up before, and it does appear to be a problem in Powerpoint: it doesn't export to PDF very well. It is possible that the metafiles that R produces could be changed so as not to trigger this bug, but that would really need input from Microsoft on what changes are needed, and as far as I've heard, they've never made any comment or acknowledgment of the problem. My advice would be to contact them; if they're unresponsive, try some other software (OpenOffice, LibreOffice, LaTeX+Beamer, ...). Duncan Murdoch