Compare two csv files in Python and return matching results in new csv file without duplicates Question: I have two csv files, one called web_file with 25,000 lines, the other file called inv_file contains 320,000 lines. I need to read through each row from column 1 of web_file and find all matching values from each …
how can I select all columns of a dataframe, which partially match strings in a list? Question: Suppose I have a Dataframe like: import pandas as pd df = pd.DataFrame({‘foo’: [1, 2, 3], ‘bar’: [4, 5, 6], ‘ber’: [7, 8, 9]}) Given a list of "filter" strings like mylist = [‘oo’, ‘ba’], how can I …
Creating a dictionary in Naive algorithm for Pattern Searching Question: I’m trying to find the number of times a certain string pattern is found inside a sequence of characters; for the bioinformatics lovers, it’s actually finding the number of times a certain motif occurs along the genome. For this purpose I’ve found the following Python …
Python String Matching Using Loops and Iterations and Score Calculation using two dataframes Question: df1 Place Location Delhi,Punjab,Jaipur Delhi,Punjab,Noida,Lucknow Delhi,Punjab,Jaipur Delhi,Bhopal,Jaipur,Rajkot Delhi,Punjab,Kerala Delhi,Jaipur,Madras df2 Target1 Target2 Strength Jaipur Rajkot 0.94 Jaipur Punjab 0.84 Jaipur Noida 0.62 Jaipur Jodhpur 0.59 Punjab Amritsar 0.97 Punjab Delhi 0.85 Punjab Bhopal 0.91 Punjab Jodhpur 0.75 Kerala Varkala 0.85 Kerala …
match specific pattern with few substitution Question: HI I am working on antibodies where I have to find a specific pattern for it’s antigen specificity using python. I am puzzling over to find a match pattern with predefined numbers of substitution. I tried regex (re.findall/re.search) with possible permutation/combination but this couldn’t solve my problem. Also, …
Python str.match regex works in main but not within another function Question: I have files with 6 character codes of the form AANNAA where A=letter and N=number. I want to flag the rows that fit (assign 0) or don’t fit (assign 1) that pattern. The following code works in that it identifies codes that don’t …
Python: How to determine if a string has an exact match with any string from the list Question: Assume that I have the list of phrases to compare against as: ["hello", "hi", "bye"] I want to return true if my text has any of this words in it, but with exact match. Meaning that: hi …
How do I approximate search multiple terms in a string in JS? Question: I have a string S and a list of strings allItems, allItems contains strings that may have common "sub-words" but one element is never an extension of another: //good, they both contain Fuzzy but Fuzzy isn’t in allItems const allItems = "FuzzyBunny", …
How to store matched part of regex in python? Question: The string is xa0n xxxxxxnBirchgrove 101,Durga Saffron Square,nKariyammana Agrahara, Bellandur, [email protected]’ and it is in a list called shipto and it is at index 0 of this list. the regex I am using is shipto_re=re.compile(r"\n xxxxxx\n(.*)(.*?) xxxxxx") The part of the string that I want …
Remove ends of string entries in pandas DataFrame column Question: I have a pandas Dataframe with one column a list of files import pandas as pd df = pd.read_csv(‘fname.csv’) df.head() filename A B C fn1.txt 2 4 5 fn2.txt 1 2 1 fn3.txt …. …. I would like to delete the file extension .txt from …
