Pandas Datetime: Extract year, month, day, hour, minute, second and weekday from unidentified flying object (UFO) reporting date
Pandas Datetime: Exercise-8 with Solution
Write a Pandas program to extract year, month, day, hour, minute, second and weekday from unidentified flying object (UFO) reporting date.
Sample Solution :
Python Code :
import pandas as pd
df = pd.read_csv(r'ufo.csv')
df['Date_time'] = df['Date_time'].astype('datetime64[ns]')
print("Original Dataframe:")
print(df.head())
print("\nYear:")
print(df.Date_time.dt.year.head())
print("\nMonth:")
print(df.Date_time.dt.month.head())
print("\nDay:")
print(df.Date_time.dt.day.head())
print("\nHour:")
print(df.Date_time.dt.hour.head())
print("\nMinute:")
print(df.Date_time.dt.minute.head())
print("\nSecond:")
print(df.Date_time.dt.second.head())
print("\nWeekday:")
print(df.Date_time.dt.weekday_name.head())
Sample Output:
Original Dataframe: Date_time city ... latitude longitude 0 1949-10-10 20:30:00 san marcos ... 29.883056 -97.941111 1 1949-10-10 21:00:00 lackland afb ... 29.384210 -98.581082 2 1955-10-10 17:00:00 chester (uk/england) ... 53.200000 -2.916667 3 1956-10-10 21:00:00 edna ... 28.978333 -96.645833 4 1960-10-10 20:00:00 kaneohe ... 21.418056 -157.803611 [5 rows x 11 columns] Year: 0 1949 1 1949 2 1955 3 1956 4 1960 Name: Date_time, dtype: int64 Month: 0 10 1 10 2 10 3 10 4 10 Name: Date_time, dtype: int64 Day: 0 10 1 10 2 10 3 10 4 10 Name: Date_time, dtype: int64 Hour: 0 20 1 21 2 17 3 21 4 20 Name: Date_time, dtype: int64 Minute: 0 30 1 0 2 0 3 0 4 0 Name: Date_time, dtype: int64 Second: 0 0 1 0 2 0 3 0 4 0 Name: Date_time, dtype: int64 Weekday: 0 Monday 1 Monday 2 Monday 3 Wednesday 4 Monday Name: Date_time, dtype: object
Python Code Editor:
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Previous: Write a Pandas program to create a plot to present the number of unidentified flying object (UFO) reports per year.
Next: Write a Pandas program to convert given datetime to timestamp.
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Python: Tips of the Day
F strings:
It is a common practice to add variables inside strings. F strings are by far the coolest way of doing it. To appreciate the f strings more, let's first perform the operation with the format function.
name = 'Owen' age = 25 print("{} is {} years old".format(name, age))
Output:
Owen is 25 years old
We specify the variables that go inside the curly braces by using the format function at the end. F strings allow for specifying the variables inside the string.
name = 'Owen' age = 25 print(f"{name} is {age} years old")
Output:
Owen is 25 years old
F strings are easier to follow and type. Moreover, they make the code more readable.
A, B, C = {2, 4, 6} print(A, B, C) A, B, C = ['p', 'q', 'r'] print(A, B, C)
Output:
2 4 6 p q r
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