Frequency
Diagrammatic Representation of Data
Murrah
Surthi
Pandarpuri Breeds
Other graded
Non descript
Diagrammatic
Presentation of data Tabular
Line Diagram Bar Diagram Pie Diagram
Area Diagram
Simple Bar Diagram Sub divided Bar Diagram
Percentage Bar Diagram
Pictogram
Multiple Bar Diagram Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Presentation of Statistical data 1. Tabular Presentation
2. Diagrammatic or Graphic presentation. Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Advantages of Diagrammatic Representation
• • • •
Give a birds eye view of numerical set of data. More appealing. Highlight the salient features of the data. Self explanatory Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Types of Diagrams 1. 2. 3. 4. 5.
Line Diagrams Bar Diagrams Pie diagrams Area diagrams Pictograms
Moisture Protein Fat Ash Cholestrol
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Line Diagram • Simplest of all diagrams. • Consists of drawing vertical lines which mention the variable. • X axis – Variable values are presented • Y axis – corresponding frequencies are presented.
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Line Diagram Cattle population 5000000 4500000
4000000 3500000 3000000 2500000
2000000 1500000 1000000 500000
0
Amirthmahal
Deoni
Hallikar
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Khillar
Non.descript
Bar Diagram • This consists of a group of equidistant rectangles or bars one for each group or category of data in which the values or magnitudes are represented by the length or height of the rectangles. • All the bars should be uniform and should be constructed on the same base line for a single study.
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Bar Diagram Method of getting to school
Number of students
School bus
58
Car
7
Walk
35
Cycle
12
Public transit
18
Other
0 Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Types of Bar Diagram 1. 2. 3. 4.
Simple bar diagram Sub-divided or component bar diagram Percentage bar diagram Multiple bar diagram
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Simple Bar Diagram • In this the magnitude of the observations are represented by the heights or lengths of the bar. • Limitation: It allows studying only one character only at a time.
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Simple Bar Diagram Hallikar 2000 Livestock Population (In thousands) 2500 2000
1500 1000 500 0
Hallikar
Khillar Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Khillar 452
Sub divided bar Diagram or Component bar Diagram • It is used to subdivide the magnitude of the given variable into various parts or sub-classes or components. • It useful for presenting several items or characteristics of a variable or a category simultaneously.
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Sub-divided Bar Diagram Davangere Dharwad Gadag
Hallikar 73133 24364 13848
100000 80000 60000
Khillari Hallikar
40000 20000 0 Davangere
Dharwad
Gadag
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Khillari 3473 30262 9586
Percentage bar diagram • Subdivided bar diagram presented graphically on percentage basis gives percentage bar diagram. • All the bars will be of same height with various segments of the bar representing the different components. • Used for diagrammatic portrayal of the relative changes in the data.
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Percentage Bar Diagram 100% 80% 60% Khillari Hallikar
40% 20% 0% Davangere
Dharwad
Gadag
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Multiple bar diagram • This is used if two or more sets of inter-related phenomenon or variables are to be represented. • It is similar to drawing of simple bar diagram but in this case a set of adjacent bars, one for each variable is drawn. • Proper and equal spacing is given for the sets of bars. Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
30000
Multiple bar diagram
25000 20000 Karnataka
15000
India 10000 5000 0 Rabbits
Horses
Ponies
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Donkey
Multiple bar diagram Major nutrients in meat of different Animals 100 50 Moisture 0
Chic Beef Pork Lam Rab
Moisture 63
60
56
70
Protein
19 16.1 11.9 15
20
Fat
11
6
22
42
45
27
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Protein Fat
Pie diagram/Angular diagram • This is circular diagram • Used to represent the total magnitude of various components. • The circle is divided into various sections or segments representing certain proportions or percentage of various component parts to the total.
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Pie Diagram • The degrees represented by the various components of a given magnitude or quantity in a pie/circle can be obtained as follows Component value Χ 360
• Degree of any component= 1%
Total value
1%
Amirthmahal
29%
Deoni
Hallikar Khillar
63% 6%
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Non.descript
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Pictogram • Presenting Statistical data through pictures.
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore
Thank you
Dr. R Jayashree, Asst. Prof(AGB) Veterinary College, Hebbal, Bangalore