


Detailed explanation of seaborn, a data visualization library in Python
In the field of data science, data visualization is an extremely important skill. As a versatile language, Python has become the first choice of many data scientists. There are many visualization libraries in Python, one of the popular ones is seaborn.
seaborn is a Python advanced data visualization library developed based on the matplotlib library. It provides a more beautiful and simple visual interface, suitable for analyzing and observing complex data.
seaborn provides many visualization tools, including:
- Distribution plot
- Heat map
- Linear regression plot
- Joint distribution chart
- Statistical chart
Next, we will analyze these visualization tools in detail.
- Distribution Plotting
Distribution plotting is a visualization technique used to understand the distribution of data. seaborn provides a variety of distribution drawing methods, including:
a. Histogram
The histogram is a visual method to display the distribution of data. It divides the data into a certain number of intervals, and then Calculate the frequency of the data within each interval and plot the frequencies on a graph. In seaborn, you can use the distplot() function to draw a histogram.
b. Kernel Density Estimation (KDE)
Kernel density estimation is a method that obtains the probability density of data distribution by smoothing the data. In seaborn, you can use the kdeplot() function to draw a KDE plot, and you can add a KDE line to the histogram.
c. Line chart
The line chart is a visualization technique that shows how the amount of data changes as variables change. In seaborn, you can use the lineplot() function to draw a line chart.
- Heat map
Heat map is a visualization technology that presents the data matrix in the form of color blocks. In seaborn, you can use the heatmap() function to draw a heat map.
- Linear Regression Plot
Linear regression plot is a visualization technique used to show the relationship between two variables. In seaborn, you can use the regplot() function to draw linear regression plots.
- Joint distribution diagram
The joint distribution diagram is a visualization technique that simultaneously displays the distribution of two variables and the relationship between them. In seaborn, you can use the jointplot() function to draw a joint distribution plot.
- Statistical Chart
Statistical chart is a visualization technology that displays the statistical characteristics of data. In seaborn, you can use the countplot() function to draw histograms, and the boxplot() function to draw box plots, etc.
When using seaborn for data visualization, some preprocessing of the data is required, such as data normalization, data cleaning, etc. In addition, you also need to learn the design principles in drawing, such as the design of labels, titles, etc. on the horizontal and vertical axes.
In short, seaborn is a Python data visualization library with powerful functions and beautiful interface, which can help data scientists quickly and accurately understand their data and make corresponding decisions.
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