Return New Timedelta with Daily Ceiling Resolution in Python Pandas

Arnab Chakraborty
Updated on 14-Oct-2021 05:40:19

156 Views

To return a new Timedelta ceiled to this resolution, use the timedelta.ceil() method. For daily ceiling resolution, set the freq parameter to the value D.At first, import the required libraries −import pandas as pdTimeDeltas is Python’s standard datetime library uses a different representation timedelta’s. Create a Timedelta objecttimedelta = pd.Timedelta('6 days 1 min 30 s') Display the Timedeltaprint("Timedelta...", timedelta)Return the ceiled Timestamp with daily ceiling resolutiontimedelta.ceil(freq='D') ExampleFollowing is the code import pandas as pd # TimeDeltas is Python’s standard datetime library uses a different representation timedelta’s # create a Timedelta object timedelta = pd.Timedelta('6 days 1 min 30 s') ... Read More

Pitch Factor, Distribution Factor, and Winding Factor for Harmonic Waveforms

Manish Kumar Saini
Updated on 13-Oct-2021 12:22:40

4K+ Views

When the flux density distribution in the alternator is non-sinusoidal, the induced voltage in the winding will also be non-sinusoidal. Thus, the pitch factor or coil span factor, distribution factor and winding factor will be different for each harmonic voltage.Pitch Factor for nth HarmonicAs the electrical angle is directly proportional to the number of poles and the angle between the adjacent slots, i.e., $$\mathrm{𝜃_{𝑒} =\frac{𝑃}{2}𝜃_{𝑚} … (1)}$$The chording angle increases with an increase in the order of the harmonics (n). In a short pitch coil, the chording angle is α° (electrical) for the fundamental flux wave. For the nth harmonic, ... Read More

Indicate All Duplicate Index Values as True in Python Pandas

AmitDiwan
Updated on 13-Oct-2021 11:41:27

306 Views

To indicate all duplicate index values as True, use the index.duplicated(). Use the keep parameter with the value False.At first, import the required libraries −import pandas as pdCreating the index with some duplicates −index = pd.Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane'])Display the index −print("Pandas Index with duplicates...", index)Indicate all duplicate index values as True. Set the "keep" parameter as "False" −print("Indicating all duplicate index values True...", index.duplicated(keep=False))ExampleFollowing is the code −import pandas as pd # Creating the index with some duplicates index = pd.Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane']) # Display the index print("Pandas Index with duplicates...", index) # ... Read More

Indicate Duplicate Index Values Except for Last Occurrence in Python Pandas

AmitDiwan
Updated on 13-Oct-2021 11:39:42

132 Views

To indicate duplicate index values except for the last occurrence, use the index.duplicated(). Use the keep parameter with the value last.At first, import the required libraries −import pandas as pdCreating the index with some duplicates−index = pd.Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane'])Display the index −print("Pandas Index with duplicates...", index)Indicate duplicate index values as True, except the last occurrence. Set the "keep" parameter as "last" −print("Indicating duplicate values except the last occurrence...", index.duplicated(keep='last'))ExampleFollowing is the code −import pandas as pd # Creating the index with some duplicates index = pd.Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane']) # Display the index print("Pandas Index ... Read More

Indicate Duplicate Index Values Except for the First Occurrence in Python Pandas

AmitDiwan
Updated on 13-Oct-2021 11:37:54

242 Views

To indicate duplicate index values except for the first occurrence, use the index.duplicated(). Use the keep parameter with the value first.At first, import the required libraries −import pandas as pdCreating the index with some duplicates−index = pd.Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane'])Display the index −print("Pandas Index with duplicates...", index)Indicate duplicate index values as True, except the first occurrence. Set the "keep" parameter as "first" −print("Indicating duplicate values except the first occurrence...", index.duplicated(keep='first'))ExampleFollowing is the code −import pandas as pd # Creating the index with some duplicates index = pd.Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane']) # Display the index print("Pandas Index ... Read More

Indicate Duplicate Index Values in Python Pandas

AmitDiwan
Updated on 13-Oct-2021 11:36:25

788 Views

To indicate duplicate index values, use the index.duplicated() method.At first, import the required libraries −import pandas as pdCreating the indexwith some duplicates −index = pd.Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane']) Display the index −print("Pandas Index with duplicates...", index)Indicate duplicate index values as True, rest False. By default, it keeps the first occurrence of the duplicate value unmarked −print("Indicating duplicate values...", index.duplicated()) ExampleFollowing is the code −import pandas as pd # Creating the index with some duplicates index = pd.Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane']) # Display the index print("Pandas Index with duplicates...", index) # Return the dtype of the ... Read More

Return Index with Duplicate Values Completely Removed in Python Pandas

AmitDiwan
Updated on 13-Oct-2021 11:35:34

276 Views

To return Index with duplicate values completely removed, use the index.drop_duplicates() method.At first, import the required libraries −import pandas as pdCreating the indexwith some duplicates −index = pd.Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane']) Display the index −print("Pandas Index with duplicates...", index)Return Index with duplicate values removed. The "keep" parameter with value "False" drops all occurrences for each set of duplicated entries −print("Index with duplicate values removed (drops all occurrences)...", index.drop_duplicates(keep = False))ExampleFollowing is the code −import pandas as pd # Creating the index with some duplicates index = pd.Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane']) # Display the index print("Pandas Index ... Read More

Return Index with Duplicate Values Removed Keeping Last Occurrence in Python Pandas

AmitDiwan
Updated on 13-Oct-2021 11:34:29

298 Views

To return Index with duplicate values removed keeping the last occurrence, use the index.drop_duplicates() method. Use the keep parameter with value last.At first, import the required libraries −import pandas as pdCreating the index with some duplicates−index = pd.Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane']) Display the index −print("Pandas Index with duplicates...", index)Return Index with duplicate values removed. The "keep" parameter with value "last" keeps the last occurrence for each set of duplicated entries −print("Index with duplicate values removed (keeping the last occurrence)...", index.drop_duplicates(keep='last')) ExampleFollowing is the code −import pandas as pd # Creating the index with some duplicates index = pd.Index(['Car', ... Read More

Return Index with Duplicate Values Removed Except the First Occurrence in Python Pandas

AmitDiwan
Updated on 13-Oct-2021 11:33:32

194 Views

To return Index with duplicate values removed except the first occurrence, use the index.drop_duplicates() method. Use the keep parameter with value first.At first, import the required libraries −import pandas as pdCreating the index with some duplicates −index = pd.Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane']) Display the index −print("Pandas Index with duplicates...", index)Return Index with duplicate values removed. The "keep" parameter with value "first" keeps the first occurrence for each set of duplicated entries −index.drop_duplicates(keep='first') ExampleFollowing is the code −import pandas as pd # Creating the index with some duplicates index = pd.Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane']) # Display the ... Read More

Make New Index with Passed List of Labels in Python Pandas

AmitDiwan
Updated on 13-Oct-2021 11:31:13

354 Views

To make new Index with passed list of labels deleted, use the index.drop() method. Pass the list of labels in it.At first, import the required libraries −import pandas as pdCreating the index −index = pd.Index(['Car', 'Bike', 'Truck', 'Ship', 'Airplane']) Display the index −print("Pandas Index...", index)A list containing labels to be dropped are passed −print("Updated index after deleting labels...", index.drop(['Bike', 'Ship'])) ExampleFollowing is the code −import pandas as pd # Creating the index index = pd.Index(['Car', 'Bike', 'Truck', 'Ship', 'Airplane']) # Display the index print("Pandas Index...", index) # Return the dtype of the data print("The dtype object...", index.dtype) ... Read More

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