Advertisements I have a list km2. I am performing a list operation and generating a new list Time. However, I am getting an error because of the 0 element. I present the expected output. km2=[0, 2.8945617583603203e-05, 0, 2.8964584076162397e-05, 2.8807838358146397e-05, 2.884599889020239e-05, 2.8869540930559196e-05] Time=[-1/i for i in km2] print(Time) The error is in <listcomp> Time=[-1/i for i… Read More Exclude zero list elements in Python
Advertisements We have a list of 2 dataframes & want to create separate dataframes. Currently using the following code to achieve that: for i in range(len(listOfDf)): globals()[f"df_{i}"] = listOfDf[i] However, I want to name the dataframes as "Events" & "Occurance" respectively. How can this be achieved ? >Solution : Use ordinary list unpacking: events, occurrences… Read More Unpack list of dataframes to create multiple dataframes
Advertisements i am fairly new to Pandas and DataFrame Analysis and i’m trying to handle a DataFrame which i got from a Web API formerly as json. I managed to turn it into a DataFrame and arrange the Data that i need. But there still is one column that i havent been able to split… Read More Explode a DataFrame column and add the objects to the dataframe
Advertisements I have a list J. I want to identify number of non-zero elements and divide by 12 and then multiply by 100. But I get an error. I present the expected output. J=[[1, 4, 0, 0, 0, 9, 0]] Percent_Unvisited=(len(J[0]!=0)/12)*100 print(Percent_Unvisited) The error is in <module> Percent_Unvisited=(len(J[0]!=0)/12)*100 TypeError: object of type ‘bool’ has no… Read More Non-zero elements of a list in Python
Advertisements I have: A small python list, say list2, [2, 4, 6] A large, initially empty, python list, say list1, [] What I need: list2 to be added in list1 as a small list inside large list. After addition all elements of small list be deleted. The python code I have written for the purpose:… Read More Insert python list into another list
Advertisements I have a list of lists that I like to convert to a Pandas data frame. My list looks like this: [1 25 2 35 3 45 4 55 5 65 Name: a, Length: 5, dtype: int 6 75 7 85 8 95 9 105 10 115 Name: b, Length: 5, dtype: int 11… Read More List to dataframe without any indexes or NaNs
Advertisements Is there any way of removing single quotes from the beginning and the end of the output string or list? I tried replace("’",""), but that does not seem to work for certain reason. The replace function worked while processing the input but I am puzzled why it does not work for the output. For… Read More Removing single quotes from beginning and end of output
Advertisements I have two lists J1,J2. I want to find elements of J1 which are not in J2. But I am getting an error. I present the expected output. import numpy as np J1=[[1, 2, 4, 6, 7, 9, 10]] J2=[[0, 2, 0, 6, 7, 9, 10]] J=[i for i in J1 not in J2]… Read More Finding elements of one list in another in Python
Advertisements I have two lists J1,J2. I want to find elements of J1 which are not in J2. But I am getting an error. I present the expected output. import numpy as np J1=[[1, 2, 4, 6, 7, 9, 10]] J2=[[0, 2, 0, 6, 7, 9, 10]] J=[i for i in J1 not in J2]… Read More Finding elements of one list in another in Python
Advertisements Say there is a list: List = [["A", "A", "A", "A", "B", "B", "B", "B"], ["C", "C", "D", "D", "C", "C", "D", "D"], ["E", "F", "E", "F", "E", "F", "E", "F"]] i want to join each of the first, second, and third element to a new list, so the new list will look like… Read More Joining several element inside a list in a list, in python