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Occurence of a value in many lists

i have a Series Object in pandas with 2 columns, one for the indices and one with lists, I need to find if a value occurs in only one of these lists and return it with the most optimal way. As an example let’s say we have this i need to return 77 because it occurs in only one of

Pandas sum() with character condition

I have the following dataframe: I want to use cumsum() in order to sum the values in column “1”, but only for specific variables: I want to sum all the variables that start with tt and all the variable that start with bb in my dataframe, so in the end i’ll have the folowing table : I know ho…

Extract corresponding df value with reference from another df

There are 2 dataframes with 1 to 1 correspondence. I can retrieve an idxmax from all columns in df1. Input: Output: df1, df2 and df Now I want to create a df which contains 3 columns Desired Output df: What are the best options to extract the corresponding values from df2? Answer Your main problem is matching…

Python: Random list with odds and even numbers

New to python. I’ve got an assignment where I have to generate a random list of numbers between -10 and 30 and then proceed to call odds and evens from the list. So far I’ve got this, but I have no idea how to proceed and how to make it actually work properly. Also I need to figure out how

How to find nearest point in segment in a 3d space

I am solving an algorithmic problem which sounds like this: Given a three-dimensional space and segments in it. Find the point with minimal distance to all of the segments. Example input: in the first line N – the number of segments, in the N next lines given the begin and the end of each segment: x1 y1…