Advertisements I need to count the number of rows per table in a list containing several tables. I have written a loop but it cannot do what I desire: Here is my dummy data: obj1 <- list(bodyPart = c("leg", "arm", "knee"),side = c("LEFT", "RIGHT", "LEFT"), device = c("LLI", "LSM", "GHT"), id = c("AA", "BB", "CC"))… Read More For loop for counting the number of rows per table in a list
Advertisements let’s say that I have a pandas DataFrame: import pandas as pd df = pd.DataFrame({‘id’: [0, 2, 1], ‘name’: [‘Sheldon’, ‘Howards’, ‘Leonard’], ‘points’: [10, 5, 20]}) I wanted to search inside this DataFrame a row with the values {‘id’: 2, ‘name’: ‘Howards’, ‘points’: 5}, How can I search it to receive the index from… Read More How I find a row inside pandas DataFrame with row data?
Learn how to filter Pandas dataframe using ‘in’ and ‘not in’ operators, similar to SQL. Master efficient data filtering techniques in Pandas for data analysis and manipulation.… Read More How to Filter Pandas Dataframe using ‘in’ and ‘not in’ like in SQL
Advertisements 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]} df = pd.DataFrame(data) For each row I want to generate a new column… Read More Pandas: Find the left-most value in a pandas dataframe followed by all 1s
Advertisements I have wrapped 3 Text in Row, but get exceptions. How can I make them displayed multiple line ? Row(children: [ Text("this is text 1 bla bla bla"), Text("this is text 2 bla bla bla"), Text("this is text 3 bla bla bla"), ],), Error ════════ Exception caught by rendering library ═════════════════════════════════ A RenderFlex overflowed… Read More Add multiple line in Row Widget
Advertisements My research has failed me (or perhaps I’m not wording my question properly) on Google and these forums. What I’m trying to do is find all occurrences of -1 from the table in the pic and list out the corresponding values from column A and row 1. I am currently able to list the… Read More Excel – Find All Occurrences of a Specific Value within a Range and Return the Corresponding Value From Row 1
Advertisements I am trying to create a dictionary of dictionaries in Python from a CSV file, the file looks something like this: Column 1 Column 2 Column 3 A flower 12 A sun 13 B cloud 14 B water 34 C rock 12 And I am trying to get a dictionary of dictionaries that looks… Read More Creating a dictionary of dictionaries from a CSV file
Advertisements I have a df with IDs and Dates (. Here is an example: ID Date 1 26.04.2011 1 21.10.2011 14 25.02.2010 14 08.07.2010 14 20.10.2010 14 07.01.2011 14 20.04.2011 14 02.07.2011 14 11.10.2011 14 23.01.2012 14 19.04.2012 14 22.10.2012 14 15.01.2013 14 06.05.2013 18 23.11.2012 18 05.06.2013 18 19.08.2013 18 11.04.2014 18 18.07.2014 ID… Read More Filter rows with more than X entries per year
Advertisements I have a different problem that I have not encountered yet. When I try to make a completely reproducible example, I get errors, so I am posting what my data look like, and what I would like it to look like. I am asking for suggestions on how to get the data into the… Read More data manipulation and deleting NA values with dplyr
Advertisements I need to keep just the first row of a dataframe for each group of values in a ordered column. I need to transform this (first column is ordered by name): a = [[1,’a’],[1,’c’],[1,’b’],[2,’c’],[2,’b’],[2,’a’],[3,’d’]] into this (just the first row for each value type in the first ordered column): a = [[1,’a’],[2,’c’],[3,’d’]] >Solution :… Read More How to delete just some rows in a dataframe according with some fields condition in Python?
