Python: best way to iterate through lists and store which has max value for each index Question: In Python (3.8), I have 15 lists of the same length. Each list contains floats. Here for the example, I will pretend I have 3 lists of length 5 to demonstrate my problem: List1 = [29.561801, 29.564141, 29.566480, …
Iterate through chunks of a pandas Dataframe Question: I have a pandas.DataFrame that looks like the following: Week Monday Tuesday Wednesday Thursday Friday City A 100 300 x z w City B 200 400 y q p None None None None None None Week Monday Tuesday Wednesday Thursday Friday City A 150 320 a c …
Python: How can I iterate through and combine multiple dictionaries based off a common key:values? Question: I am attempting to take a list, full of multiple dictionaries, and combine those multiple dictionaries in new dictionaries. A couple small requirements are throwing me off however. I have values for a specific key which will show up …
Time Complexity of this program solving the coin change problem Question: I have created a program shown below, and I am confused as to how to figure out its time complexity. Is it O(ntarget/min(coins)) because a for loop is created each time the function is called, and the function is called target/min(coins) times? The program …
Iterating through a dictionary to get next values from previous values Question: I have this sample dataset {‘data1’:200, ‘data2’:500} I want to iterate this data in a range of 25, such that each iteration would give me the previous value * (1+0.05) within the iteration. In this case the output of range of 2 would …
append() is overwriting the previous data he has written instead of just adding at the end Question: i’m wondering why the function append() is overwritting the elements given in a list that he has to write one after another. I’m really lost here. So here is the list of elements (I use fake identity names) …
Trying to understand the difference in what matches and the resulting output for findall vs finditer Question: Using findall: import re target_string = "please sir, that’s obviously a clip-on." result = re.findall(r"[a-z]+(‘[a-z])?[a-z]*", target_string) print(result) # result: [”, ”, "’s", ”, ”, ”, ”] Using finditer: import re target_string ="please sir, that’s obviously a clip-on." result …
Combinations of words and digits with specific order Question: I need all possible combinations of upper words and digits in this format digit-word-word-word . I tried this code : upper_a = [‘A’, ‘B’, ‘C’, ‘D’, ‘E’, ‘F’, ‘G’, ‘H’, ‘I’, ‘J’, ‘K’, ‘L’, ‘M’, ‘N’, ‘O’, ‘P’, ‘Q’, ‘R’, ‘S’, ‘T’, ‘U’, ‘V’, ‘W’, ‘X’, …
Find element in list n times Python Question: Given are a = [1, 4, 2, 5] b = [[[0, 1]], [[0, 2]], [[0, 3]], [[0, 4]], [[0, 5]], [[0, 6]], [[0, 2]], [[0, 3]], [[0, 4]], [[0, 5]], [[0, 4]], [[0, 5]], [[0, 6]], [[0, 4]], [[0, 2]], [[0, 2]], [[0, 4]], [[0, 4]], [[0, …
Select certain elements from a list with a loop and condition Question: I have a list similar to this one below, but much larger. mylist = [‘ 12345678912 ST’, ‘ Halterung für Fortlüfterhaube’, ‘ Material/Werkstoff: Metall-Lackiert’, ‘ **Beginn Zeichnung**’, ‘ 98765432164 ST’, ‘ Klappe, komplett’, ‘ **Beginn Zeichnung**’, ‘ 74563254671 ST’, ‘ Sieb Außen-Dm 145 …
