# Scatter Plot

The Scatter Plot form generates a graph showing the relationship between two variables. One of Ten Curve Fit equations may be selected to fit the data. The r-squared value will be displayed. In addition, a Y=X line may be displayed, which is useful for paired analysis. Double-clicking on the graph will copy the graph to the clipboard.

### Scatter Menu

**File**provides the ability to Open a Data File, View the__Data Editor__, Print the Chart, or return to the__Main Form__.**Edit**allows copying the Chart or Equation to the Windows Clipboard, or Editing the Chart Titles.**View**allows Zooming Out the Chart, Setting the Graph to Black & White, Adding File Modifications to the Chart, or Adding the Curve Fit Equation to the Chart.**Help**provides access to this Website.

### Speed Buttons

The buttons provide quick access to common tasks. Clicking these buttons do the following tasks:

- Returns to the
__Explore Form__. - Opens a
__Data File__. - Displays the
__Data Editor__. -
__Saves the chart to a file__. -
__Prints the chart__. - Copies the chart to the clipboard.
- Edits the Titles
- Zooms out the chart following a
__Zoom__. - Toggles between Color and Black & White.
- Brings up the Help file.
- Hides the form.

### Scatter Chart

The Scatter Plot is displayed here.

### Curve Fit Equations

The r-squared value and the Curve Fit Equation will be displayed here.

### Scatter Y-Value

Select the Y-Value here from the drop-down list.

### Scatter X-Value

Select the X-Value here from the drop-down list.

### Curve Fit Equation Selection

Select from the possible list below:

- None
- Linear: Y=A+BX
- Exponential: Y=Aexp(BX)
- Logarithmic: Y=A+Bln(X)
- Power: Y=A*X^B
- Inverse: Y=A+B/X
- Compound: Y=A*B^X
- Growth: Y=exp(A+B*X)
- S: Y=exp(A+B/X)
- Quadratic: Y=A+BX+CX^2
- Cubic: Y=A+BX+CX^2+DX^3
- 4th Order: Y=A+BX+CX^2+DX^3+EX^4
- 5th Order: Y=A+BX+CX^2+DX^3+EX^4+FX^5

### Y=X Line

Check this box to plot a Y=X line.

### Point Size

Move the slider to change the size of the plotted points.

### Sample Size

The sample size will be displayed here.

### Line Thickness Control

The line thickness can be changed by clicking these up and down buttons.

### Scatter Title

The title will be added here. The default title is "Scatter Plot." This title may be edited.

### Equation Decimal Places

Select the number of decimals places to be used in the display of a fitted equation and the r-squared value.

### Point Values

The X and Y values of a point will be displayed here when the cursor is over the point. The cursor will display as a cross (+) when over the point.