Data Science

Pandas

Question 1
Marks : +2 | -2
Pass Ratio : 100%
Panel is a container for Series, and DataFrame is a container for dataFrame objects.
True
False
Explanation:
DataFrame is a container for Series, and panel is a container for dataFrame objects.
Question 2
Marks : +2 | -2
Pass Ratio : 50%
Which of the following makes use of pandas and returns data in a series or dataFrame?
pandaSDMX
freedapi
OutPy
none of the mentioned
Explanation:
freedapi module requires a FRED API key that you can obtain for free on the FRED website.
Question 3
Marks : +2 | -2
Pass Ratio : 50%
Point out the correct statement.
Pandas consist of set of labeled array data structures
Pandas consist of an integrated group by engine for aggregating and transforming data sets
Pandas consist of moving window statistics
All of the mentioned
Explanation:
Some elements may be close to one another according to one distance and farther away according to another.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
Which of the following indexing capabilities is used as a concise means of selecting data from a pandas object?
In
ix
ipy
none of the mentioned
Explanation:
ix and reindex are 100% equivalent.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
Which of the following library is used to retrieve and acquire statistical data and metadata disseminated in SDMX 2.1?
pandaSDMX
freedapi
geopandas
all of the mentioned
Explanation:
Geopandas extends pandas data objects to include geographic information which supports geometric operations.
Question 6
Marks : +2 | -2
Pass Ratio : 50%
Point out the correct statement.
Statsmodels provides powerful statistics, econometrics, analysis and modeling functionality that is out of panda’s scope
Vintage leverages pandas objects as the underlying data container for computation
Bokeh is a Python interactive visualization library for small datasets
All of the mentioned
Explanation:
Bokeh goal is to provide elegant, concise construction of novel graphics in the style of D3.
Question 7
Marks : +2 | -2
Pass Ratio : 50%
Which of the following statement will import pandas?
import pandas as pd
import panda as py
import pandaspy as pd
all of the mentioned
Explanation:
You can read data from a CSV file using the read_csv function.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
Which of the following method is used for transforming a SparseSeries indexed by a MultiIndex to a scipy.sparse.coo_matrix?
SparseSeries.to_coo()
Series.to_coo()
SparseSeries.to_cooser()
None of the mentioned
Explanation:
Experimental api to transform between sparse pandas and scipy.sparse structures.
Question 9
Marks : +2 | -2
Pass Ratio : 100%
Point out the correct statement.
All of the standard pandas data structures have a to_sparse method
Any sparse object can be converted back to the standard dense form by calling to_dense
The sparse objects exist for memory efficiency reasons
All of the mentioned
Explanation:
The to_sparse method takes a kind argument and a fill_value.
Question 10
Marks : +2 | -2
Pass Ratio : 50%
Pandas consist of static and moving window linear and panel regression.
True
False
Explanation:
Time series and cross-sectional data are special cases of panel data.