I am using shapefiles with basic information including the x-, y- and z-coordinates. I want to see how the objects (in this case points, which are finds from an excavation) are scattered along the z-axis. To make it visible, I copied the information to Excel and made a chart. There I can see the distribution of the finds on the z-axis, of course. But I want to make this distribution visible in QGIS (with the z-axis and x/y-axis) like as it can be seen in charts made with Excel.
I already tried to do this with the tools "Profile from line" and "Profile tool", but I always failed because I neither use raster files nor are the contents of the shapefiles drawn by lines, they are only drawn by points.
Is this possible with QGIS? If so, how is it done? (I'm using QGIS Lisboa)