Which pandas function is described as a convenient way to compute a simple frequency table from two DataFrame columns, which can then be used for plotting?
Explanation
`pandas.crosstab` is a utility function that computes a cross-tabulation of two (or more) factors. By default, it computes a frequency table of the factors unless an aggregation function and values array are passed.
Other questions
What is the primary purpose of the `%matplotlib inline` command when used in a Jupyter notebook?
Which method is used to add a subplot to an existing Figure object in matplotlib?
In the command `fig.add_subplot(2, 2, 1)`, what does the argument `1` represent?
What is the more convenient alternative to `fig.add_subplot` for creating a figure and a grid of subplots simultaneously, which also returns a NumPy array of the subplot objects?
What do the `sharex` and `sharey` arguments in `plt.subplots()` achieve when set to True?
In `fig.subplots_adjust(wspace=0, hspace=0)`, what is the effect on the plot layout?
Which argument is used in plotting functions like `ax.plot` to specify the style of the line, for example, to make it dashed?
In a line plot, what is the purpose of the `marker` argument?
How can you alter the default linear interpolation between points in a line plot to a step-like pattern?
Which method is used to explicitly set the tick locations on the x-axis of a matplotlib subplot?
What is the easiest way to add a legend to a matplotlib plot that identifies different plotted elements?
Which function is used to add annotations that can consist of both text and an arrow to a subplot?
To add a shape like a `Rectangle` or `Circle` to a subplot, you create a patch object and then pass it to which method?
When saving a figure using `fig.savefig()`, what does the `dpi` option control?
Which function is used to programmatically modify matplotlib's global configuration parameters, such as the default figure size?
By default, what type of plot does the `.plot()` method on a pandas Series or DataFrame create?
When plotting a pandas DataFrame, what is the default behavior regarding its columns?
In the context of a pandas DataFrame plot, what does the argument `subplots=True` do?
How do you create a stacked bar plot from a pandas DataFrame?
What is a useful recipe for visualizing the frequency of values in a pandas Series using a bar plot?
In the `seaborn.barplot` function, what does the `data` argument typically expect?
When using `seaborn.barplot`, if there are multiple observations for each category on the y-axis, what do the bars represent by default?
In `seaborn.barplot`, what is the purpose of the `hue` argument?
What is a key difference between a histogram and a density plot?
Which seaborn function is particularly useful for examining the relationship between two one-dimensional data series by making a scatter plot and fitting a linear regression line?
What is a pairs plot (or scatter plot matrix), and which seaborn function can create it?
In the `sns.pairplot` function, what does the `diag_kind='kde'` argument specify?
What is a facet grid, as created by `seaborn.catplot`?
In `sns.catplot`, which arguments are used to create a facet grid by splitting the data into subplots based on the values of certain columns?
What type of plot does `sns.catplot(..., kind='box')` create?
To ensure subplots in a 2x2 grid created with `plt.subplots(2, 2)` have the same y-axis ticks for comparison, which argument should be used?
What is the return type of the `plt.subplots(2, 3)` command?
What does the `alpha` style option, such as `alpha=0.3`, control in a plot?
If you call `ax.set_xticklabels(["one", "two", "three"], rotation=30)`, what is the effect of `rotation=30`?
What is the purpose of the `loc` argument in the `ax.legend()` method?
How can you save a plot to a 400 DPI PNG file named 'my_figure.png' using a Figure object `fig`?
In a pandas DataFrame plot, what does the `layout` argument, such as `layout=(2, 2)`, specify?
Which seaborn function is used to change the aesthetics of plots, such as the plot background and grid line colors, with predefined themes like 'whitegrid'?
What is another name for a density plot, based on the method used to create it?
The `kind` argument in pandas' `.plot()` method can be set to 'barh'. What type of plot does this create?
What does a box plot, as created by `sns.catplot(kind='box', ...)` or other methods, show?
What is the primary function of the seaborn library as described in the text?
When creating a histogram for tip percentages using `tips["tip_pct"].plot.hist(bins=50)`, what does the argument `bins=50` accomplish?
Which command would you use to change the default seaborn color palette to a greyscale one suitable for black-and-white print?
In a pandas DataFrame plot, what does the argument `sort_columns` do?
What does the `figsize` argument, such as `figsize=(8, 6)`, specify when used in a plotting function like `plt.figure` or `plt.subplots`?
When calling a pandas Series plot method like `s.plot()`, what is used for the x-axis by default?
According to the text, in seaborn's `barplot`, what do the black lines drawn on the bars represent by default?
You have a pandas DataFrame with columns `A` and `B`. Which is the correct syntax to create a vertical bar plot of column `A`?