Hello! I'm trying to plot a 3D dataset as a scatter-plot, coding Z-axis values with point size. I pass the following parameters to "plot" function: type = 'p', pch = 16, cex = intensity/max(intensity) In my dataset, max(intensity)/min(intensity) is ~4000. However, visual points vary in radius by no more then 100 probably. Albeit default device isn't good at displaying micro-points, other devices (pdf, svg) can display such points just fine. Is there a way to produce micro-points with cex=0.001 and less? Best wishes, Andrey Paramonov -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.
On 04/07/2014 04:33 PM, ?????? ????????? wrote:> Hello! > > I'm trying to plot a 3D dataset as a scatter-plot, coding Z-axis values > with point size. I pass the following parameters to "plot" function: > > type = 'p', > pch = 16, > cex = intensity/max(intensity) > > In my dataset, max(intensity)/min(intensity) is ~4000. However, visual > points vary in radius by no more then 100 probably. Albeit default > device isn't good at displaying micro-points, other devices (pdf, svg) > can display such points just fine. > > Is there a way to produce micro-points with cex=0.001 and less? >Hi Andrey, As the points help page says: What happens for very small or zero values of cex is device-dependent: symbols or characters may become invisible or they may be plotted at a fixed minimum size. Jim