Data handling
- 1. INDEX What is data handling? The types of graphs Bar graph The axis Pie chart Water fall graph Line graph Area graph Pictograph Tally chart By Rayna Rocha VI J
- 2. Data handling is the process of ensuring that research data is stored, archived or disposed off in a safe and secure manner during and after the conclusion of a research project. This includes the development of policies and procedures to manage data handled electronically as well as through non-electronic means .
- 3. There are eight main graphs. Their names are Bar graphs Pie charts Tally charts Area graphs
- 4. Pictographs Water fall graphs Line graphs Polar graphs
- 5. This is a type of chart, which contains labelled horizontal or vertical bars showing a piece of information and an axis. The numbers along the side of bar graph compose the axis. This is also called as a histogram; Bar Graph is useful when there is a numerical comparison.
- 6. There are two types of axis present in a bar graph. The line which is horizontal is known as the X Axis. The line which is vertical is known as the Y Axis.
- 7. A pie chart is divided into sectors, illustrating numerical proportion. In a pie chart, the arc length of each sector, is proportional to the quantity it represents.
- 8. A waterfall chart is a form of data visualisation that helps in understanding the cumulative effect of sequentially introduced positive or negative values. The waterfall chart is also known as a flying bricks chart or Mario chart due to the apparent suspension of columns (bricks) in mid-air. Often in finance, it will be referred to as a bridge.
- 9. A line chart or line graph is a type of chart which displays information as a series of data points called 'markers' connected by straight line segments. It is a basic type of chart common in many fields.
- 10. An area chart or area graph displays graphically quantitive data. It is based on the line chart. The area between axis and line are commonly emphasized with colours, textures and hatchings. Commonly one compares with an area chart two or more quantities.
- 11. A picture that visually helps us to understand data is called a pictograph. A pictograph represents data in the form of pictures, objects or parts of objects.
- 12. This chart is not used with numbers but instead of lines. We can make five a time. Like this-