Drop duplicates, keep most recent date in a Pandas dataframe
Try: df.sort_values(‘DATE_CHANGED’).drop_duplicates(‘STATION_ID’,keep=’last’)
duplicates
How to drop columns which have same values in all rows via pandas or spark dataframe?
What we can do is use nunique to calculate the number of unique values in each column of the dataframe, and drop the columns which only have a single unique value: In [285]: nunique = df.nunique() cols_to_drop = nunique[nunique == 1].index df.drop(cols_to_drop, axis=1) Out[285]: index id name data1 0 0 345 name1 3 1 1 … Read more
What’s the most Pythonic way to identify consecutive duplicates in a list?
>>> from itertools import groupby >>> L = [0, 0, 0, 3, 3, 2, 5, 2, 6, 6] >>> grouped_L = [(k, sum(1 for i in g)) for k,g in groupby(L)] >>> # Or (k, len(list(g))), but that creates an intermediate list >>> grouped_L [(0, 3), (3, 2), (2, 1), (5, 1), (2, 1), (6, … Read more
Fastest Way to Drop Duplicated Index in a Pandas DataFrame [duplicate]
Simply: DF.groupby(DF.index).first()
How can I remove duplicate words in a string with Python?
string1 = “calvin klein design dress calvin klein” words = string1.split() print (” “.join(sorted(set(words), key=words.index))) This sorts the set of all the (unique) words in your string by the word’s index in the original list of words.
Android Studio: Duplicate files copied in APK META-INF/DEPENDENCIES when compile
While Scott Barta’s answer is correct, is lacks a simple and common solution: just add android { packagingOptions { exclude ‘META-INF/DEPENDENCIES’ exclude ‘META-INF/NOTICE’ exclude ‘META-INF/LICENSE’ exclude ‘META-INF/LICENSE.txt’ exclude ‘META-INF/NOTICE.txt’ } } to your build.gradle to ignore those duplicates.
Removing Duplicates From Dictionary
You could go though each of the items (the key value pair) in the dictionary and add them into a result dictionary if the value was not already in the result dictionary. input_raw = {112762853378: {‘dst’: [‘10.121.4.136’], ‘src’: [‘1.2.3.4’], ‘alias’: [‘www.example.com’] }, 112762853385: {‘dst’: [‘10.121.4.136’], ‘src’: [‘1.2.3.4’], ‘alias’: [‘www.example.com’] }, 112760496444: {‘dst’: [‘10.121.4.136’], ‘src’: [‘1.2.3.4’] … Read more
Prevent auto increment on MySQL duplicate insert
You could modify your INSERT to be something like this: INSERT INTO tablename (tag) SELECT $tag FROM tablename WHERE NOT EXISTS( SELECT tag FROM tablename WHERE tag = $tag ) LIMIT 1 Where $tag is the tag (properly quoted or as a placeholder of course) that you want to add if it isn’t already there. … Read more
Removing duplicate rows (based on values from multiple columns) from SQL table
Sample SQL FIDDLE 1) Use CTE to get max ship code value record based on ARDivisionNo, CustomerNo for each Customers WITH cte AS ( SELECT*, row_number() OVER(PARTITION BY ARDivisionNo, CustomerNo ORDER BY ShipToCode desc) AS [rn] FROM t ) Select * from cte WHERE [rn] = 1 2) To Delete the record use Delete query … Read more