Exploratory Data Analysis (EDA):
Compute Basic Statistics:
Mean, Median, Standard Deviation:
For each important economic indicator, compute the mean (average), median (middle value), and standard deviation
(a measure of data spread). These statistics measure variability and a central trend in your data.
Visualize Trends Over Time:
Line Charts or Time-Series Plots:
- Plot each economic statistic on a monthly basis from January 2013 to December 2019.
- Recognize patterns, peaks, and troughs. This graphical format aids comprehension of the general behavior of
economic data.
Identify Seasonality or Patterns:
Seasonal Decomposition:
- To find seasonal components in data, use approaches such as seasonal decomposition of time series (e.g., with Python tools such as ‘statsmodels’).
- Look for repeating patterns or cycles at regular intervals.
Feature Engineering:
Create New Features:
Calculate Growth Rate:
- Develop a new capability for calculating the growth rate of economic indicators. This can be expressed as a
percentage change from one period to the next. - Growth rates can reflect the pace at which economic indices rise or fall.
Aggregating Data:
- To acquire a higher-level picture, aggregate the data by quarters or years.
- This can aid in smoothing out data noise and identifying long term patterns.
Correlation Analysis:
Explore Relationships:
Correlation Matrices:
- Determine the correlation coefficients (e.g., Pearson and Spearman) between two economic indices.
- A correlation matrix can assist in comprehending the strength and direction of correlations. A near to 1 number implies a high positive connection, -1 is a strong negative correlation, and 0 is no correlation.
Scatter Plots:
- Create scatter plots for pairs of economic indicators to inspect their relationships visually.
- Looking for linear or non-linear patterns in the scatter plots.
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