A new Points command will draw one point at the specified (x,y) location (1,1).
You can change the location of this point by typing in a new location such as (5,2).
To plot multiple points, change one of the data inputs to a column.
To create a scatter graph, select two columns with numerical data.
These can be number columns, date columns, or text columns that have been mapped to a number.
Use the Marker menu to choose from over 30 different built-in marker styles.
The marker size and is set to the point variable. The line thickness and is set to the pen variable.
To change the sizes, you can:
- edit the point/pen value in the Style settings (recommended)
- enter a number directly
- enter a different variable name
- use the slider to change the value interactively
There are two color tiles for selecting the outline and the fill color, when you have a marker with a separate fill.
You can format the points to vary based on numerical or categorical data.
The size can be scaled based on a numerical column of data. You can scale based on the X column, Y column, or you can choose a third column.
The size can be scaled by diameter or area. The pixel size for each point is calculated by multiplying the values in the Size column by a scaling factor (set to 1 by default).
The Color can be set to a color scheme. When the Marker is a solid, the Color is for the entire marker.
For markers with a separate fill, the Color setting will correspond to the outline.
The Fill can be set to a color scheme or a color ramp.
The Style of the marker can be set using a marker scheme.
At the bottom of the command is an option for Error style that is set to ‘No Error’ by default.
After you select an Error style, the menu options for Error in X and Error in Y appear.
Use the Error in X and Error in Y menus to specify the extent of the error bars in either direction. By default, the error is the same is the positive and negative direction, but you can also chose different columns for each of these.
For example, here is a simple dataset with the error plotted in the Y direction.