View
101
Download
0
Category
Preview:
Citation preview
1
Basics:Creating Charts
Working withSpreadsheets
2
What is a Chart?
A chart is a graphical representation of information.
Information presented in tabular form.
Diagram, Picture, Image Representation of numbers
3
Why Charts?
Easy for interpretation of large amounts of numbers
Compact a lot of information in small area
Make room for easy inference/ conclusion
Can allow for predictions
4
Charting is not straight forward...
Many types of charts that are
used for different purposesKnow what data you haveKnow what types of charts exist
Choose appropriate chart for data
5
Common types of Charts
Line Graphs Pie Charts Bar Graphs
Line Graphs
A line graph is a way to summarize how different pieces of information are related and how they vary depending on one another.
The numbers along a side of the line graph are called the scale
The other are Labels6
7
cont… Line Graphs
When you want to display a trend
Charts made up of lines Each line represent a particular category
cont… Line Graphs
Rose Joseph Richard0
10
20
30
40
50
60
70
80
90
100
IEDS Computer Literacy Marks
Assignment
Test
8
IEDS Computer Literacy Marks
Name Assignment Test
Rose 79 87
Joseph 68 77
Richard 58 68
Pie Charts A pie chart is a circle graph
divided into pieces Each displaying the size of
some related piece of information.
Pie charts are used to display the sizes of parts that make up some whole.
9
cont… Pie ChartsWhen you want to display percentages
Circular Chart Divided into segments Each segments represent part of a whole in percentage
Entire circler presents whole10
cont… Pie Charts
11
IEDS Assignment Marks
Rose
Joseph
Richard
IEDS Computer Literacy Marks
Name Assignment Test
Rose 79 87
Joseph 68 77
Richard 58 68
12
Bar Graphs Bar graphs consist of an axis
and a series of labelled horizontal or vertical bars that show different values for each bar.
The numbers along a side of the bar graph are called the scale.
13
cont… Bar Graphs
When you want to compare quantities of different categories
Chart made up of barsData grouped into categories
Frequencies represented on Y-axis mostly
14
cont… Bar Graphs
Assignment Test0
10
20
30
40
50
60
70
80
90
100
IEDS Computer Literacy Marks
Rose
Joseph
Richard
IEDS Computer Literacy Marks
Name Assignment Test
Rose 79 87
Joseph 68 77
Richard 58 68
15
Exercise
Think of suitable data for Pi- chart and create one
Think of suitable data for Bar- chart and create one
16
More Information
Visit these sites on Charts and Graphs on the Internethttp://www.strategiccomm.com/usecharts.html - Using charts http://www.mathleague.com/help/data/data.htm - Using Charts http://www.cas.lancs.ac.uk/glossary_v1.1/presdata.html - Glossary of statistical terms http://lilt.ilstu.edu/gmklass/pos138/datadisplay/goodcharts.htm - Constructing good charts
Recommended