NumPy

Which of the following is contained in NumPy library?

• n-Dimentional Array Object

• Tools for integrating C/C++ and Fortran code

• Fourier Transform

• All of the above

Which of the following statements find the maximum number in a NumPy array 'arr'?

• max(arr)

• arr.max()

• arr(max)

• None of the above

Which Pandas function from the following can be used to read dataset from a large text file?

• read_json

• read_pickle

• read_hdf

• read_csv

Which of the following is an invalid writer function in Pandas?

• to_clipboard

• to_text

• to_stata

• to_msgpack

Given a NumPy array 'items' how would you access the data item at the 5th column, 2nd row?

• items[2, 5]

• items(1,4)

• items[1, 4]

• items[4, 1]

Which of the following is the correct syntax of the reshape() method for a NumPy array?

• array.reshape(shape)

• reshape(shape, array)

• reshape(array, shape)

• reshape(shape)

Which of the following functions need a dictionary of array-like sequences or a dictionary of another dictionary, to return a DataFrame?

• DataFrame.from_items

• DataFrame.from_records

• DataFrame.from_dict

• All of the above

What is a Pandas Series?

• A one-dimensional labeled array

• A two-dimensional labeled array

• A three-dimensional labeled array

• None of the above

Which of the following statements are true?

• The standard marker for missing data in Pandas is NaN

• Series act in a way similar to that of an array

• Both of the above

• None of the above

Which of the following is the correct syntax to convert a list 'l1' into a NumPy array?

• array(l1)

• array.l1

• numpy.array(l1)

• None of the above