count

Why is my loop, that has to count substrings, not working correctly?

Why is my loop, that has to count substrings, not working correctly? Question: I have two dataframes (20000+ rows) with combinations. I want to loop through df2 with df1 and count the occurence of combinations. For example the code should be able to recognize that the combination "B,D" from df1 occurces 3 times with these …

Total answers: 2

How to loop from a dataframe to another one to count occurence of certain words?

How to loop from a dataframe to another one to count occurence of certain words? Question: enter image description here I have two dataframes, df1 contains a column with all possible combinations and df2 contains a column with the actual combinations. I want to make a second column within df1 that loops through df2 and …

Total answers: 2

count the number of values in data frame's column that exist in another data frame's column

count the number of values in data frame's column that exist in another data frame's column Question: I have two data frames: df1: Index Date 0 2016-03-21 20:10:00 1 2016-03-22 21:09:00 2 2016-05-03 17:05:00 df2: Index Date 0 2016-03-21 20:10:00 1 2016-03-21 21:00:00 2 2016-03-22 21:09:00 3 2016-05-03 17:05:00 4 2017-06-01 16:10:00 There’s probably a …

Total answers: 2

How to real count repeated string in string in python?

How to real count repeated string in string in python? Question: I am sorry that I am not sure my question is correct or clear enough. However, I hope the example below can explain my question: As what you see print("abbbbbbc".count("bbb")) #–output is 2 But I want the result is 4, because bbbbbb has 6 …

Total answers: 1

How to find the count of same values in a row in a dataframe?

How to find the count of same values in a row in a dataframe? Question: The dataframe is as follows: a | b | c | d ——————————- TRUE FALSE TRUE TRUE FALSE FALSE FALSE TRUE TRUE TRUE TRUE TRUE TRUE FALSE TRUE FALSE I need to find the count of the TRUE’s in each …

Total answers: 1

Order queryset by the number of foreign key instances in a Django field

Order queryset by the number of foreign key instances in a Django field Question: I am trying to return the objects relating to a through table which counts the number of reactions on a blog post. I have an Article model, Sentiment model and Reactions model. The sentiment is simply a 1 or 2, 1 …

Total answers: 2

Count Odd Numbers in an Interval Range. Leetcode problem №1523. Python

Count Odd Numbers in an Interval Range. Leetcode problem №1523. Python Question: I tried to solve this problem from leetcode and I came up with the following code but the testcase where low = 3 and high = 7 gives 2 as an output and 3 is expected by leetcode. I will be grateful if …

Total answers: 2

Counting entries of a list

Counting entries of a list Question: I have a list: final_list =[‘Angle1 &110.2 \\’, ‘Angle1 &110.2 \\’, ‘Angle3 (2) \\’, ‘Angle4 & 93 (2) \\’] for entry in final_list: print(entry) For Latex formatting I need to connect these entries (over 100 entries total). The list should look like this: OUTPUT = Angle1 &110.2 & Angle2 …

Total answers: 2

Pandas COUNTIF equivalent (preserve duplicate values, see description)

Pandas COUNTIF equivalent (preserve duplicate values, see description) Question: I have the following pandas column1 and I want to create a column2 displaying the count of the value in each row in the column1. I do not want to use pandas value_counts as I do not want to group by the values of the column. …

Total answers: 2