Unity Script Reference:

static function FloatField(position: Rect, value: float, style: GUIStyle = EditorStyles.numberField): float;

static float FloatField(Rect position, float value, GUIStyle style = EditorStyles.numberField);

static def FloatField(position as Rect, value as float, style as GUIStyle = EditorStyles.numberField) as float

static function FloatField(position: Rect, label: string, value: float, style: GUIStyle = EditorStyles.numberField): float;

static float FloatField(Rect position, string label, float value, GUIStyle style = EditorStyles.numberField);

static def FloatField(position as Rect, label as string, value as float, style as GUIStyle = EditorStyles.numberField) as float

static function FloatField(position: Rect, label: GUIContent, value: float, style: GUIStyle = EditorStyles.numberField): float;

static float FloatField(Rect position, GUIContent label, float value, GUIStyle style = EditorStyles.numberField);

static def FloatField(position as Rect, label as GUIContent, value as float, style as GUIStyle = EditorStyles.numberField) as float

Parameters

position	Rectangle on the screen to use for the float field.
label	Optional label to display in front of the float field.
value	The value to edit.
style	Optional GUIStyle.

Returns
float The value entered by the user.

Description

Make a text field for entering floats.

Float Field in an Editor Window.

	// Editor Script that multiplies the scale of the current selected GameObject 
	
	class EditorGUIFloatField extends EditorWindow {
	
		var sizeMultiplier : float = 1;
		
		@MenuItem("Examples/Scale selected Object")
		static function Init() {
			var window = GetWindow(EditorGUIFloatField);
			window.position = Rect(0, 0, 210, 30);
			window.Show();
		}
		
		function OnGUI() {
			sizeMultiplier = EditorGUI.FloatField(Rect(3,3,150, 20),
						"Increase scale by:", 
						sizeMultiplier);
			if(GUI.Button(Rect(160,3,45,20), "Scale!"))
				Selection.activeTransform.localScale = 
					Selection.activeTransform.localScale * sizeMultiplier;
		}
	}