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OMIS 114 Question and answers 100% correct

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OMIS 114 Question and answers 100% correct OMIS 114 - Mod 2 + 3 Quiz pandas - correct answer Python package providing data structures to work on relational and labeled data. Designed to be efficient and intuitive two main classes in pandas - correct answer DataFrame and Series DataFr...

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  • November 5, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • omis 114
  • omis 114 question and answers 100 correct

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OMIS 114 - Mod 2 + 3 Quiz
pandas - correct answer ✔Python package providing data structures to work
on relational and labeled data. Designed to be efficient and intuitive


two main classes in pandas - correct answer ✔DataFrame and Series


DataFrame - correct answer ✔table


Series - correct answer ✔column


type(ITEM) - correct answer ✔returns the type of the item


ITEM.head() - correct answer ✔returns the first 5 items within the item


df['ITEM'] - correct answer ✔accesses ONE column (series) of the dataframe
named 'ITEM'


ITEM.index - correct answer ✔returns the index as an Index object and the
values as an ndarray (n-dimensional array)


ITEM.values - correct answer ✔returns the values of the item (in this case, it
is the column name)


ITEM.values[2] - correct answer ✔returns value of item at index 2

, ITEM.describe() - correct answer ✔returns the summary statistics of the
Series values


ITEM.mean() - correct answer ✔returns average of all values in item


ITEM.median() - correct answer ✔returns median of all values in item


ITEM.min() - correct answer ✔returns min of all values in item


ITEM.max() - correct answer ✔returns max of all values in item


ITEM.sum() - correct answer ✔returns sum of all values in item


ITEM.iloc[2] - correct answer ✔selects rows using the positional index (using
an integer or a slice, CANNOT USE STR)


ITEM.iloc[2:6] - correct answer ✔retrieves elements from index 2 to 5
(excludes last index)


ITEM['row'] - correct answer ✔selects row using label value


ITEM['row1' : 'row2'] - correct answer ✔selects a slice of label values


v = [true, false, true, false]
new_var = ITEM[v] - correct answer ✔selects what items to retrieve based
using boolean selection

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