Ultimately, I would like to build a raster and do terrain analysis from a group of xyz coordinates.
I have been trying to build a vector map that I could then interpolate, but am having trouble...
My data is in a .csv file exported from R (but have since figured that I need to open and resave as .csv with excel (Why?)):
image.tiff (19.6 KB)
Ultimately, I would like to build a raster and do terrain analysis
from a group of xyz coordinates.
I have been trying to build a vector map that I could then
interpolate, but am having trouble...
My data is in a .csv file exported from R
no spaces at the end of the lines or anything?
what do a few lines of data look like?
(but have since figured that I need to open and resave as .csv with
excel (Why?)):
Certainly not the case, unless export from R is unclean.
[image.tiff image/tiff (27230 bytes)]
that's blank?
I created a new location for the data and tried to import with:
v.in.ascii
input=/Users/geoscience/Documents/GIS/grassData/Lachmach2/lm2.csv
output=p1 format=point fs=, skip=1 x=1 y=2 z=3 cat=0 -zMy full data set has 1258 points but the resultant vector map has just
24, yet when I display the attribute table it has 1258 rows.
Is that v.in.ascii telling you that you have 24 points, v.info, or
v.surf.rst? If v.surf.rst try "g.region vect=yourpoints" first.
Hamish