site stats

Expecting list of lists or lists of values

WebMay 1, 2024 · 1. If you are sure that all items in your list are lists you can use any directly because the truthy value of [] is False. list_of_lists = [ [], [], [], []] if not any (list_of_lists): # all lists are empty (or list_of_lists itself is empty) Various uses of any and all will allow you to check other similar conditions: if any (list_of_list ... WebMay 14, 2024 · So, if we want to group a number of List objects, we have two options: Array-based: List [] List-based: List>. Next, let's have a look at when to choose which one. Array is fast for “get” and “set” operations, which run in O (1) time. However, since the array's length is fixed, it's costly to resize an array for inserting ...

Combine list of lists with similar values in python

WebNov 9, 2024 · Based on the names of sublists with xyz values of a list, I would like to extract a sample of the xyz values from a sublist. Note: the lists do not start at 1. Example data set.seed(123) data <... WebAug 24, 2024 · I have a list of lists with column names and am trying to replace the values of a column. My lists containing all lists called all_lists looks as such: [[1]] preds ground_truth 19221 0. ... Replacing values in column of list of lists in R [duplicate] Ask Question Asked 2 years, 7 months ago. Modified 2 years, 7 months ago. elementary schools in east st louis https://wopsishop.com

How to check if a value exists in a list of lists of lists in python ...

Webexpect_column_values_to_be_in_set is a Column Map Expectation. Args: column (str): The column name. value_set (set-like): A set of objects used for comparison. Keyword Args: … WebDec 12, 2014 · Part of R Language Collective Collective. 3. I have list of lists similar to this sample: z <- list (list (num1=list ( (list (tab1=list (list (a=1, b=2, c=5), list (a=3, b=4), list (d=4,e=7)))))),list (num2=list ( (list (tab2=list (list (a=1, b=2), list (a=3, b=4))))))) I would like to extract the figures out of the last list of lists names ... WebCore Values List. Below is a list of core values commonly used by leadership institutes and programs. This list is not exhaustive, but it will give you an idea of some common core values (also called personal values). My recommendation is to select less than five core values to focus on—if everything is a core value, then nothing is really a ... elementary schools in el cajon

Expected Value - GeeksforGeeks

Category:Extract values from list of lists with R - Stack Overflow

Tags:Expecting list of lists or lists of values

Expecting list of lists or lists of values

How to compare two lists with different order? - Stack Overflow

WebSep 18, 2024 · 2,106. You just need to make the Matrix input a nested list, like this: Python: g = sp.Matrix([[g00,g01,g02,g03],[g10,g11,g12,g13],[g20,g21,g22,g23],[g30,g31,g32,g33]]) … Web# the row are matrices flat_list = [] ncol = set() rows = cols = 0 for row in dat: if not is_sequence(row) and \ not getattr(row, 'is_Matrix', False): raise ValueError('expecting …

Expecting list of lists or lists of values

Did you know?

WebNov 10, 2024 · 2 Answers Sorted by: 1 Assuming values in the sublists are hashable you can create a lookup table - a dict where keys are the values in sublists and values of the dict - collection of indexes of the sublists in the outer list. WebDec 7, 2015 · First, we split the input on consecutive new-lines using split ('\n\n') to give us a list of group s. That takes are of the "empty lines" problem you mentioned. Then, for each group we're splitting by '\n' to give us a list of sublist s. Splitting by spaces using map (str.stplit, sublist) to give us a list of str.

WebDec 2, 2013 · 1. from collections import defaultdict entries = defaultdict (list) for (key, value) in items: entries [key].append (value) Now entries is a dict of lists of the second values. You can either get them by key ('118') or use values () for a list of lists. Share. WebFeb 20, 2024 · import re output = [] for list in a_list: temp=[] for x in list: if re.compile('\d').search(x): temp.append(x) output.append(temp) Further elaborating on the answer provided so far. We can make use of list comprehensions for a more concise and tidy code. Perhaps at the expense of some readability:

WebApr 15, 2024 · if your list is not big and you want simple solution then you can convert list to string and check string value of number in that string see below example: lst = [ [ [1,2,3], [3,4,5]], [1, [2,34,5, [45,67]]]] lst1 = str (lst) print (lst) print (str (67) in lst1) output is: [ [ [1, 2, 3], [3, 4, 5]], [1, [2, 34, 5, [45, 67]]]] True Share WebSep 6, 2024 · if the list have any unhashable elements (other than string and number), like objects etc, you might want to take out their id and make another list and compare their Counter. ... if Counter(map(id,list_a)) == Counter(map(id,list_b)): print "same unhashable things in list_a and list_b"

WebDec 7, 2024 · 2 Answers Sorted by: 5 The most straight forward approach is to convert the strings in your sub-lists to floats before appending the sub-lists to your final list. That means use values = list (map (float, ln.split (" "))) Alternatively, you can post-process your list of lists like this:

Web3. Use sapply instead of lappy like this: list_lists <- sapply (list_lists, function (x) {length (x) <- max_length; return (x)}) this should give you the matrix that you wanted. Seems like the sapply will recursively unlist each list in the list_lists then apply the function that you specified and wrap all the outputs into a matrix, effectively ... elementary schools in el pasoWebAug 1, 2010 · list = [ ['a', 'b'], ['c', 'd'] ] for item1, item2 in list: print item1, item2 This will output: a b c d as expected. This works in a similar way that dicts do, only you can have … football saves kids from drowningWebJun 1, 2010 · After 2 million trails, my simulated expected value was 0.9992347, or 1. Question. I'm looking to prove this mathematically, and feel I should be using Bayes … football saturday january 15