Year-on-Year Growth and Cumulative Change Mapping Concept: Year-on-year growth and cumulative change mapping is a powerful technique used in statistical...
Year-on-Year Growth and Cumulative Change Mapping
Concept:
Year-on-year growth and cumulative change mapping is a powerful technique used in statistical graph and trend analysis to visualize the long-term growth and decline of a variable over a period of time. It helps identify trends, identify potential turning points in the data, and make predictions about future growth rates.
Steps:
Data Preparation: Gather a dataset containing the values of a variable measured at regular intervals, such as monthly or quarterly data.
Create a Bar Chart: Represent the data as a bar chart, with the bars representing the different years.
Determine the Growth Rate: Calculate the growth rate of the variable by dividing the difference between two consecutive years by the original value.
Create a Cumulative Change Map: Create a line graph that shows the cumulative change of the variable over time.
Analyze the Map: Observe the patterns and trends in the bar chart and line graph. Identify growth rates, turning points, and potential outliers.
Benefits:
Provides a visual representation of long-term growth and decline.
Helps identify trends and patterns in data.
Identifies potential turning points and critical values.
Enables the calculation and analysis of growth rates.
Example:
Suppose we have a dataset of the sales figures of a company over the past five years. The bar chart would show the growth rates of the company's sales over the years, while the line graph would show the cumulative change of sales. We would observe that the company's sales have been growing steadily, with a few fluctuations along the way. We would also identify a turning point in the data around year 3, where the growth rate starts to decline