Hi, usually it's good practice to simplify question as much as possible and create toy example with input and desired output. Is there a word in English to describe instances where a melody is sung by multiple singers/voices? An indexer into the target of the values not found. python - Resampling Error : cannot reindex a non-unique index with a Extracting only unique values (myindex.unique() and dropping the rows using the unique index doesn't help either. dropnabool, default True Don't include NaN in the counts. Sorry if this is too vague for a meaningful answer. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. rev2023.7.21.43541. How can the language or tooling notify the user of infinite loops? Find centralized, trusted content and collaborate around the technologies you use most. For this reason, the returned indexer contains only integers equal to -1. Returns Series See also Running computations on sums of a column's unique values in pandas data How to apply resampling and grouping at the same time with Pandas? pandas.Index.get_indexer_non_unique Example - Program Talk Given I have: C A B 0 one 3 1 one 2 2 two 1. Find centralized, trusted content and collaborate around the technologies you use most. where subset can be changed if you want to find duplicates only in a specific column, and keep = False specifies to display all rows that are duplicated, regardless if its the first or second appearance. rev2023.7.21.43541. How do I figure out what size drill bit I need to hang some ceiling hooks? Return unique values from an Index. An alternative approach is to find the number of levels by calling df.index.levels[level_index] where level_index can be inferred from df.index.names.index(level_name). . Can a creature that "loses indestructible until end of turn" gain indestructible later that turn? If you aren't sure why it's duplicated, then chances are it's not actually something you care about anyway, so just give it a new one. pandas - check for non unique values in dataframe groupby Unfortunately this only works if (Z,A) pairs are unique. If a crystal has alternating layers of different atoms, will it display different properties depending on which layer is exposed? below the first item is an array of locations in index. To be more precise, a lot more values get dropped than there are in the index (in the extreme case I actually drop all rows even though there are several hundred rows where column2 has myvalue). How can I convert this half-hot receptacle into full-hot while keeping the ceiling fan connected to the switch? Can a creature that "loses indestructible until end of turn" gain indestructible later that turn? 592), Stack Overflow at WeAreDevelopers World Congress in Berlin, Temporary policy: Generative AI (e.g., ChatGPT) is banned. Do US citizens need a reason to enter the US? Replace a column/row of a matrix under a condition by a random number. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing, I don't think drop duplicates is needed. When i tried the above to check for index duplicates it says false as there are none. Am I in trouble? I could of course do it like this and then use setattr(). Why the ant on rubber rope paradox does not work in our universe or de Sitter universe? 592), Stack Overflow at WeAreDevelopers World Congress in Berlin, Temporary policy: Generative AI (e.g., ChatGPT) is banned. . Find centralized, trusted content and collaborate around the technologies you use most. Great, that seems to have fixed it! Improving time to first byte: Q&A with Dana Lawson of Netlify, What its like to be on the Python Steering Council (Ep. Why is the Taz's position on tefillin parsha spacing controversial? Is there an issue with this seatstay? Pandas Series.nonzero () is an argument less method. A car dealership sent a 8300 form after I paid $10k in cash for a car. (although still orders of magnitude slower than df.loc[df.index == 55555]) By the way: I know df.loc[indexer] will return a DataFrame if you have duplicates. The link to dataset used is here Example Python3 import pandas as pd df = pd.read_csv ('data.csv') Output: Just like it name says, rather returning non zero values from a series, it returns index of all non zero values. Am I in trouble? the ValueError: cannot reindex a non-unique index with a method or limit appears for just cryptocurrency. values uniques = x [~x.isin (dups)] #get not dup. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. By voting up you can indicate which examples are most useful and appropriate. cannot reindex a non-unique index with a method or limit. Doesn't an integral domain automatically imply that is it is of characteristic zero? What information can you get with only a private IP address? So far I did the following: But what I would like to have is a list, for each group in a, with multiple occurrences in b. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Does the UNO R4 still have the standard on-board led on pin 13? Not the answer you're looking for? How can you get duplicate indices then? Making statements based on opinion; back them up with references or personal experience. ERROR: No matching distribution found for you-get . Create unique MultiIndex from Non-unique Index Python Pandas How feasible is a manned flight to Apophis in 2029 using Artemis or Starship? Why are my film photos coming out so dark, even in bright sunlight? Connect and share knowledge within a single location that is structured and easy to search. Does this definition of an epimorphism work? Can someone help me understand the intuition behind the query, key and value matrices in the transformer architecture? I've come to the following solution: x = pv.index.get_level_values ("") #get index level values dups = x [x.duplicated ()].unique () #get dup. (Bathroom Shower Ceiling), Proof that products of vector is a continuous function. To learn more, see our tips on writing great answers. current data to the new index. The shortest two ways I could find looks like this: But non of them are very elegant. I have here a DataFrame with dates as index, Id and bitrate. Do I have a misconception about probability? Do US citizens need a reason to enter the US? If I had to guess, it's duplicated as the result of an. Systematic references on linearizing conditional / logical expressions. First a simple (and not very efficient) function to get the group ordinal number: Now use this as an auxiliary index variable and unstack: Final munging to get it exactly like you showed: Thanks for contributing an answer to Stack Overflow! Why is a dedicated compresser more efficient than using bleed air to pressurize the cabin? What is the smallest audience for a communication that has been deemed capable of defamation? What's the DC of Devourer's "trap essence" attack? Not the answer you're looking for? One possible solution is add drop . Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing, But i need line numbers in the original dataframe, not a new filtered dataframe. If you can provide an example dataframe and alsof provide expected output, we can help you better. Circlip removal when pliers are too large. if not self.index.is_unique, then a DataFrame is returned even for non-duplicated labels). Why are my film photos coming out so dark, even in bright sunlight? If there are repeated values in your index, doing reset_index before might help. Asking for help, clarification, or responding to other answers. Thanks for contributing an answer to Stack Overflow! To merge two of this files, i want so re-sample the index to every minute: And some of the indexes have duplicate values in the 9th column (the type of DNA repetitive element in this location), and I want to know what are the different types of repetitive elements for individual locations (each index = a genome location). Why do capacitors have less energy density than batteries? Why is a dedicated compresser more efficient than using bleed air to pressurize the cabin? GitHub pandas-dev / pandas Public Notifications Fork 16.5k Star 39k 3.4k Projects The second I have a weird on for this. I'm not sure whether that is preferable to restarting the index as ecortazar suggested in his answer and using an inplace drop. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. Improving time to first byte: Q&A with Dana Lawson of Netlify, What its like to be on the Python Steering Council (Ep. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Like the Amish but with more technology? Which denominations dislike pictures of people? Can a creature that "loses indestructible until end of turn" gain indestructible later that turn? If a crystal has alternating layers of different atoms, will it display different properties depending on which layer is exposed? I guess u want unique values in a certain level (and by level names) of a multiindex. Technically we can solve it -- we can introduce a new keyword argument to method fetch_pandas_all, something like dedup_columns which by default is False, and if set to True, then fetch_pandas_all can do the dedup. Conclusions from title-drafting and question-content assistance experiments Pandas resample by groups with duplicate datetimes, When to use a custom index rather than ordinary columns in Pandas, Resampling Dataframe from Monthly to Daily, How to resample using forward fill python. Looking for title of a short story about astronauts helmets being covered in moondust. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Is there an issue with this seatstay? Did Latin change less over time as compared to other languages? SNOW-502111: fetch_pandas_all returns ValueError: Found non-unique Not the answer you're looking for? Conclusions from title-drafting and question-content assistance experiments DataFrame.drop not dropping expected rows in Pandas, IndexError when dropping rows in Dataframe, Pandas boolean indexing error with .drop(), Can't seem to drop duplicates on one dataframe but can do it for another. Looking for title of a short story about astronauts helmets being covered in moondust. How do I figure out what size drill bit I need to hang some ceiling hooks? The other 3 give me the InvalidIndexError: Reindexing only valid with uniquely valued Index objects. Looking for title of a short story about astronauts helmets being covered in moondust. Execute the import only once and see if the message is still coming. I have here a DataFrame with dates as index, Id and bitrate. How to avoid conflict of interest when dating another employee in a matrix management company? The time is just not enough to finish before the next update shall start. Can a creature that "loses indestructible until end of turn" gain indestructible later that turn? How do bleedless passenger airliners keep cabin air breathable? By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. pandas - How to fix this ValueError: "cannot reindex a non-unique index To learn more, see our tips on writing great answers. Like the Amish but with more technology? Thanks for contributing an answer to Stack Overflow! 592), Stack Overflow at WeAreDevelopers World Congress in Berlin, Temporary policy: Generative AI (e.g., ChatGPT) is banned. Making statements based on opinion; back them up with references or personal experience. 592), Stack Overflow at WeAreDevelopers World Congress in Berlin, Temporary policy: Generative AI (e.g., ChatGPT) is banned. positions matches the corresponding target values. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Quite tricky, since the state at times changes between "is_unique" and checking what are duplicates. Conclusions from title-drafting and question-content assistance experiments Get unique values from index column in MultiIndex, Pandas: Get unique MultiIndex level values by label, Pandas Multiindex from array => TypeError: unhashable type: 'dict', Create unique MultiIndex from Non-unique Index Python Pandas, getting unique index's value from multiindex, Getting the same row multiple times out of a MultiIndexed DataFrame, Reindex MultiIndex with unique values in level, Pandas create multiindex from array and OrderedDict.