4-5 Q

What is NaN?*

• in pandas dataframe NaN means that the value was missing (absent)

• in pandas dataframe NaN means that the value is categorical

• in pandas dataframe NaN means that the value is available

• in pandas dataframe NaN means that the value is numerical

pyplot is ...

• a sub-module of the NumPy library, each its function makes some change to an array.

• a sub-module of the Matplotlib library, each its function makes some change to a figure.

• none of the given

• a sub-module of the Pandas library, each its function makes some change to a DataFrame.

The ... function is used to get unique values from a column. *

• unique()

• isunique()

• get_unique()

• isna()

... change names of the axisplt.xlabel() and plt.ylabel()

• plt.x() and plt.y()

• plt.xlabel() and plt.ylabel()

• plt.xlim() and plt.ylim()

• plt.legend()

... makes a box plot from DataFrame columns.

• DataFrame.plot.box()

• DataFrame.create_boxplot()

• DataFrame.boxplot()

• DataFrame.add_boxplot()

The following function is used to display all currently active figure objects*

• plt.plot()

• plt.present()

• plt.display()

• plt.show()

What package was used in the Lab works 4 and 5 to create visualizations? *

• Jupyter Notebook

• NumPy

• Pandas

• Matplotlib

Define the name of the following chart *

• boxplot

• scatterplot

• line chart

• histogram chart

For DataFrame.plot() which parameter defines the kind of plot to produce?*

• kind

• chart

• type

• plot

plot function of pandas

• none of the given

• makes plots of Series or DataFrame.

• draws a picture according to the description

• reads a CSV file into DataFrame