This document discusses diagrammatic presentations of data, which use geometric techniques like bar diagrams, pie charts, and cartograms to visually present numerical information. The main advantages of these diagrams are that they are attractive, easy to remember and understand, simplify complex data, and help make comparisons. There are one-dimensional, two-dimensional, and three-dimensional diagrams. Examples provided include line graphs, bar graphs, sub-divided bar graphs, rectangular diagrams, and pie charts. Pie charts in particular can be used to show percentages and proportional relationships between parts of a whole.

1. TOPIC -
DIAGRAMMATIC PRESENTATIONOF DATA

2. DIAGRAMMATIC PRESENTATION OF
DATA
It is a geometric technique of presenting
numerical information through bar diagram,
pie diagram, pictogram or cartogram is know
as a diagrammatic presentation of data.

3. ADVANTAGERS
 Diagrams are attractive and impressive
 Easy to remember
 Diagram simplify data.
 Diagram save time.
 Diagram are useful in making comparison.
 Universal applicability.
 Diagram give more information.

4. Types of diagrams
One dimensional
diagrams
Two dimensional
diagrams
Three dimensional
diagrams

5. • Pictorial presentations of
facts are easily understand
• Device of representing
statistical data in pictures
Pictograms
• Simple and easy to
understand
• Generally used regional or
geographic comparison
Cartograms

6.  One dimensional
diagrams
Line Bar
Simple
Bar
Multimul
Bar
Sub –
dividend

7. LINE DIAGRAM-
NUMBE
R OF
ACCIDE
NTS
1 2 3 4 5 6 7 8
NUMBE
R OF
DRIVER
S
2 18 15 10 13 22 9 11

8. 0
5
10
15
20
25
1 2 3 4 5 6 7 8
Series2

9. BAR -
0 5 10 15 20 25
1
2
3
4
5
6
7
8
Series2

10. MULTIPUL
INDUSTRY 1997-98 1998-99 1999-2000
CHEMICAL 956 1580 523
ENGINEERING 2155 1800 1423
SERVIES 1194 1550 506
FOOD 418 78 525

11. 0 500 1000 1500 2000 2500
CHEMICAL
ENGINEERING
SERVIES
FOOD
1999-2000
1998-99
1997-98

12. SUB-DIVIDEND
0
1000
2000
3000
4000
5000
6000
CHEMICAL
ENGINEERING
SERVIES
FOOD
1997-98
1998-99
1999-2000

13. TWO DIAMENSIONAL
 RECTANGLES –
PERCENTAGE SUB –DIVIDED
SUB DIVIDEND RECTANGLE

14. THREE DIAMENSIONAL
 SQUARE
 CIRCAL
 RECTANGLE Sales
1st Qtr
2nd Qtr
3rd Qtr
4th Qtr

15. PIE DIAGRAM-
SOURCES OF
PRICE
INFORMATION
NO.OF FARMERS % OF NO.OF
FARMER
DGREE A ANGLE
RADIO 50 9.1 33
DAILY PAAPER 60 10.9 39
LOCALTADERS 100 18.2 66
CO-FARMERS 310 56.4 203
PERSONAL
VISITS
20 3.6 13
MARKET OFFICE 10 1.8 6
TOTAL 550 100.0 360

16. NO.OF FARMERS
RADIO
DAILY PAAPER
LOCAL TADERS
CO-FARMERS
PERSONAL VISITS
MARKET OFFICE
TOTAL

17. THANKYOU..