Visualise numerical field data

15 minutes

Now we are ready to complete the final exercise for today - it’s time to visualise numerical data!

• If you’re working with your own field data, choose a field that contains numerical data such as plant density or number of hunting snares
• For the water beetles example, we’ll use the Year column we created in the previous exercise

1. Open the layer properties - double-click or right-click > Properties)
2. In the Symbology tab, select Graduated from the dropdown menu at the top
3. Choose the column you want to symbolise from the Value dropdown menu; for the water beetle dataset, we’ll choose our newly calculated field Year
4. Click on the Classify button in the bottom left
5. Click Apply and OK to finish

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• Open the layer properties - double-click or right-click > Properties)

• In the Symbology tab, select Graduated from the dropdown menu at the top

• Choose the column you want to symbolise from the Value dropdown menu; for the water beetle dataset, we’ll choose our newly calculated field Year

• Click on the Classify button in the bottom left

• Click Apply and OK to finish

• Note the distribution of records. Those of you who know Northern Ireland will see that many of the older records are clustered around Belfast

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