Graphics

=Using Graphics for Statistics=

Reading:
Histograms: Construction, Analysis and Understanding What is a Histogram? When should we use a Histogram? (pdf) Real and Apparent Limits Information conveyed by histograms Stata 11 help for twoway_histogram

Example:
sysuse auto, clear histogram mpg, width(5) percent normal

Reading:
Kernel density estimation Stata 11 help for kdensity

Example:
sysuse auto, clear kdensity mpg, normal lw(thick) legend(off)



**Reading:**
stata 11 help for q-q plot q-q plot definition qnorm plot example

**Example:**
sysuse auto, clear qnorm mpg



Example:
sysuse auto, clear stem weight

18 **| 00,00,30** 20 **| 20,40,50,70** 22 **| 00,00,30,40,80** 24 **| 10** 26 **| 40,50,50,70,90** 28 **| 30,30** 30 **|** 32 **| 00,10,20,50,60,80** 34 **| 00,20,20,30,70** 36 **| 00,00,70,90,90** 38 **| 30,80** 40 **| 30,60,60,80** 42 **| 90** 44 **|** 46 **|** 48 **| 40**
 * Stem-and-leaf plot for weight (Weight (lbs.))**
 * [Please note that the two asterisks after the stem number are absent when this is copied into the wikipage]**
 * 17** | 60
 * 19** | 30,80,90
 * 21** | 10,20,30,60
 * 23** | 70
 * 25** | 20,80
 * 27** | 30,50,50
 * 29** | 30
 * 31** | 70,80
 * 33** | 00,10,30,50,70,70
 * 35** |
 * 37** | 00,20,40
 * 39** | 00
 * 41** | 30
 * 43** | 30
 * 45** |
 * 47** | 20

Reading:
Explanation and examples: IQR and Outliers, 5 Number Summary []

Stata Help:
@http://www.stata.com/help.cgi?graph+box

Interactive Applet:
[]

Example:
sysuse auto, clear graph hbox mpg

=__//**Google not Bing**//__=