The Plot node shows relationships between continuous fields. The Plot node allows users to visually check the relationship between two continuous fields by creating a scatter plot. A scatter plot displays individual observation in an area determined by a vertical and horizontal axis, each of which represent the variables of interest. To create a scatter plot:

1. Place a Plot node from the Graphs palette onto the canvas.
2. Connect the Type node to the Plot node.
3. Edit the Plot node.

To see the relationship between two continuous fields, place a field in each field option:

1. Click the X field drop-down arrow.
2. Select the field Age.
3. Click the Y field drop-down arrow.

4. Select the field Num_persons_worked, as shown in the following screenshot:

5. Click the Options tab.
6. Select Sample.

7. Click Run. You will get the following result:

We have now created a scatter plot showing the relationship between age and the number of people that work. Notice that this is not a very strong relationship, because it is a bit difficult to see a clear relationship or pattern, however it does seem that to a certain extent, high values in one field tend to be associated with low values in the other field. In order to quantify this relationship, we need to use the Statistics node.