How can I write a function that finds any and all elements of a list that add to a target? Question: I have been hired to reconcile years of financial records that have quite large discrepancies. The statements are listed in excel and include a name and figure of the transaction (either positive or negative …
Sum categories by unique values in list in python Question: I have this list: [(‘2023-03-15’, ‘paris’, ‘flight’, 4), (‘2023-03-21’, ‘berlin’, ‘flight’, 2), (‘2023-03-01’, ‘madrid’, ‘drive’, 10), (‘2023-03-04’, ‘madrid’, ‘cycling’, 3), (‘2023-03-08’, ‘rome’, ‘train’, 9), (‘2023-03-11’, ‘amsterdam’, ‘flight’, 5), (‘2023-03-14’, ‘london’, ‘boat’, 1)] How do you reproduce the same list syntax summing similar activities like "flight", …
Harmonic Function (Square Wave Fourier Series) in Python using Nested Loops and Lists Question: Apologies for the lack of in-line pictures, I am a first time poster. I am trying to plot a square wave via a Fourier Series using nested loops with matplotlib. The square wave is given by the function: I take an …
Pandas: Find the left-most value in a pandas dataframe followed by all 1s Question: I have the following dataset data = {‘ID’: [‘A’, ‘B’, ‘C’, ‘D’], ‘2012’: [0, 1, 1, 1], ‘2013’: [0, 0, 1, 1], ‘2014’: [0, 0, 0, 1], ‘2015’: [0, 0, 1, 1], ‘2016’: [0, 0, 1, 0], ‘2017’: [1, 0, 1,1]} …
count how many times the column ratio is bigger than 0.05 and column dif is between 15 and 30 Question: Datetime ratio dif 2022-06-09 12:33:00 -0.3861241598107547 -299.50183804712964 2022-06-09 12:34:00 -0.360130489922861 -274.88184087028105 2022-06-09 12:35:00 -0.22108950904852795 -166.02672464097395 2022-06-09 12:36:00 -0.18316426991752388 -135.2928226604197 2022-06-09 12:37:00 -0.09932437001820388 -72.14644129886278 2022-06-09 12:38:00 -0.0820362738010348 -58.58522049972339 2022-06-09 12:39:00 -0.04310125282586597 -30.25449340858836 2022-06-09 12:40:00 -0.48650055935157194 -335.5773828284086 …
How to sum elements of a list encoded as strings with numbers Question: There is a list with duplicate word elements with a number at the end of them. I want to sum the duplicate’s numbers, remove the duplicates and print words with sum of numbers but I don’t know how… Input: a = ["mango3", …
After subsetting a dataframe, how to add a column that will sum only specific columns in the subset (row wise)? Question: I’ve searched a lot, including in suggested past questions, and didn’t find an answer. Coming from R and tidyverse and new to Python and pandas. I want to add a column to a subset …
What do i have to do if i want to Sum my result using Python? Question: import string dict = {} bool = False user_string = input("Bitte gebe hier die Buchstaben ein, welche du Summieren möchtest:") String_Num = "" for i, char in enumerate(string.ascii_lowercase): dict[i] = char # This is dictinoary. for val in user_string.lower(): …
Multiplying Values from two different Dictionaries Question: I have two dictionaries which I need to multiply and get the total of, both with the same keys (I need the total of the stock and price of some items). # Create a list "menu" with 4 items menu = ["sandwich", "burger", "fish", "chips"] # Create a …
How to calculate sum of squares of each cell for a row in dataframe? Question: i have a dataframe like this Index A B C D E 0 4 2 4 4 1 1 1 4 1 4 4 2 3 1 2 0 1 3 1 0 2 2 4 4 0 1 1 …
