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How to show two sets of points from tow different fields in QGIS?
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I made a union of two adjacent shp (points) files with the same theme (Geochemistry) so the resulting attribute table gave duplicated fields, for example: ID, As_ppm, Ag_ppm, Pb_ppm, ... , ID_2, As_ppm_2, Ag_ppm_2, Pb_ppm_2,...
And the elements of the first shp give 'NULL' in the fields of the second shp and vice-versa, As in the screenshot.
So my goal is to show the combined points for a speciffic element, say Arsenic, so I have tried, without success, expressions like As_ppm || As_ppm_2 , As_ppm + As_ppm_2, combine(As_ppm ,As_ppm_2).
Thanks in advance.
qgis shapefile point attribute-table map-algebra
asked 8 mins ago
cavereapercavereaper
133
add a comment |
I made a union of two adjacent shp (points) files with the same theme (Geochemistry) so the resulting attribute table gave duplicated fields, for example: ID, As_ppm, Ag_ppm, Pb_ppm, ... , ID_2, As_ppm_2, Ag_ppm_2, Pb_ppm_2,...
And the elements of the first shp give 'NULL' in the fields of the second shp and vice-versa, As in the screenshot.
So my goal is to show the combined points for a speciffic element, say Arsenic, so I have tried, without success, expressions like As_ppm || As_ppm_2 , As_ppm + As_ppm_2, combine(As_ppm ,As_ppm_2).
Thanks in advance.
qgis shapefile point attribute-table map-algebra
asked 8 mins ago
cavereapercavereaper
133
add a comment |
I made a union of two adjacent shp (points) files with the same theme (Geochemistry) so the resulting attribute table gave duplicated fields, for example: ID, As_ppm, Ag_ppm, Pb_ppm, ... , ID_2, As_ppm_2, Ag_ppm_2, Pb_ppm_2,...
And the elements of the first shp give 'NULL' in the fields of the second shp and vice-versa, As in the screenshot.
So my goal is to show the combined points for a speciffic element, say Arsenic, so I have tried, without success, expressions like As_ppm || As_ppm_2 , As_ppm + As_ppm_2, combine(As_ppm ,As_ppm_2).
Thanks in advance.
qgis shapefile point attribute-table map-algebra
asked 8 mins ago
cavereapercavereaper
133
I made a union of two adjacent shp (points) files with the same theme (Geochemistry) so the resulting attribute table gave duplicated fields, for example: ID, As_ppm, Ag_ppm, Pb_ppm, ... , ID_2, As_ppm_2, Ag_ppm_2, Pb_ppm_2,...
And the elements of the first shp give 'NULL' in the fields of the second shp and vice-versa, As in the screenshot.
So my goal is to show the combined points for a speciffic element, say Arsenic, so I have tried, without success, expressions like As_ppm || As_ppm_2 , As_ppm + As_ppm_2, combine(As_ppm ,As_ppm_2).
Thanks in advance.
qgis shapefile point attribute-table map-algebra
qgis shapefile point attribute-table map-algebra
asked 8 mins ago
cavereapercavereaper
133
asked 8 mins ago
cavereapercavereaper
133
asked 8 mins ago
cavereapercavereaper
133
asked 8 mins ago
cavereapercavereaper
133
asked 8 mins ago
cavereapercavereaper
133
133
add a comment |
add a comment |
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