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Drop all duplicate rows across multiple columns in Python Pandas

...alse , while I would like to drop all rows which are duplicates across a subset of columns. Is this possible? 6 Answers ...
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Summarizing multiple columns with dplyr? [duplicate]

I'm struggling a bit with the dplyr-syntax. I have a data frame with different variables and one grouping variable. Now I want to calculate the mean for each column within each group, using dplyr in R. ...
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How do Third-Party “tracking cookies” work?

...tisers Use Third-Party Cookies? on how third-party tracking cookies work, but am still very confused. I don't understand how if I visit Website A (a normal website with ads) how Website B (an advertising website) can assign my computer an ID, and then figure out that I was on website A, and other w...
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List of foreign keys and the tables they reference

...ng to find a query which will return me a list of the foreign keys for a table and the tables and columns they reference. I am half way there with ...
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Difference between new and override

Wondering what the difference is between the following: 14 Answers 14 ...
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Checking the equality of two slices

...he slice and test. Equality for slices is not defined. However, there is a bytes.Equal function if you are comparing values of type []byte. func testEq(a, b []Type) bool { // If one is nil, the other must also be nil. if (a == nil) != (b == nil) { return false; } if len(...
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Custom Python list sorting

...uments (list items) which should return a negative, zero or positive number depending on whether the first argument is considered smaller than, equal to, or larger than the second argument: cmp=lambda x,y: cmp(x.lower(), y.lower()). The default value is None. ...
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How to swap the buffers in 2 windows emacs

... I use buffer-move for this. Now if you are working on the buffer on the left side, calling 'buf-move-right' will swap it with the one on the right. I guess this is what you want. ...
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How to filter rows in pandas by regex

... Use contains instead: In [10]: df.b.str.contains('^f') Out[10]: 0 False 1 True 2 True 3 False Name: b, dtype: bool share | improve this answe...
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Include another HTML file in a HTML file

I have 2 HTML files, suppose a.html and b.html . In a.html I want to include b.html . 37 Answers ...