Home PHP C# C++ Android Java Javascript Python IOS SQL HTML Categories

Finding even numbers in lists of lists python

Though you don't say it explicitly, it seems you are looking for the maximum even number in each list within a list of lists. And from your example it seems you want the programme to add 0 if there is no even number. In that case this will work:

print [max(value for value in [0] + L
if not value % 2) for L in list_of_lists]

Categories : Python

Related to : Finding even numbers in lists of lists python
Finding duplicates in few lists
You can use items from all 3 lists on the same index as key and store the the corresponding index as value(in a list). If for any key there are more than 1 indices stored in the list, it is duplicate: from itertools import izip def solve(*lists): d = {} for i, k in enumerate(izip(*lists)): d.setdefault(k, []).append(i) for k, v in d.items(): if len(v) > 1: print k, v solv

Categories : Python
Common Lisp - Collect 'firsts' from nested lists of lists
How about something like this? (defun immediate-children (object &aux (result '())) (labels ((f (object) (cond ((consp object) (push (list* (first object) (mapcar #'f (rest object))) result) (first object)) (t object)))) (f object) result)) CL-USER> (

Categories : List
How can lists in a list be overwritten by new lists in a new list in Python?
You should probably be using a dictionary for this. You're essentially mimicking its functionality anyway. If you have a dictionary a and dict b: a = { "Adolf": "10", "Hermann": "20", "Heinrich": "30" } b = { "Rudolf": "40", "Adolf": "50" } then you can just do as follows: a.update(b) One line! Easy as pie. And that's as close as you're going to come to a built-in magic(), I think. But if yo

Categories : Python
remove elements from a data.frame with lists of lists
How about: f <- function(x) which(sapply(x, length) <= 1L) sku_data[-unlist(lapply(sku_data[-1], f)), ] # sku units_current units_end # 3 1200586 1, 2, 3, 4 2, 3, 4 # 4 1200590 2, 3, 4 1, 2, 3 And testing on more than one/uneven length matches (sku2 <- rbind(sku_data, sku_data, sku_data[1,])) # sku units_current units_end # 1 1200337 1 1, 2, 3 #

Categories : R
Finding the average of columns from nested lists in a dictionary's value
Assuming value in dictionary contains list of only two elements (which are again lists): d = {'dog': [['4.1', '7.0', 'dog'], ['1.2', '3.4', 'dog']], 'cat': [['1', '8.2', '5.501', 'cat'], ['6.5', '8', '9.1', 'cat']]} avg_dict = {} for key in d: avg_list = [] i = 0 while (i < len(d[key][0]) - 1): avg_list.append((float(d[key][0][i]) + float(d[key][1][i])) /2.0) i +

Categories : Python
Recently Add
Overriding save method vs Model Method?
function encrypt file - input & output to same file in python
python if statement fails to compute compound logic
referencing sphinx generated Python docs from YAML file
Subclassing datetime64
filter view from url parameter with an intermediate model?
How to stream twitter mentions with tweepy?
How to space out rows and columns in Python Tkinter
Python: Using BeautifulSoup to save content to CSV
Python - Take parts of a txt file and put them in another txt
Python socket send doesn't send the whole string
Python: prime test
How to import one day old logs
Appending filters to django models
Python: parsing .xls file failed with both xlrd and pandas
writing pandas dataframe columns to csv rows staggered
parse_args doesn't seem to understand json arguments
Django ORM, get data
Pygame, keep jumping and glitching through the "ground"
Is it possible to import a class defined inside a function?
How to handle a variable number of nested for loops?
Boolean expression with strings
Object duplicated when using processing.Manager?
What is the syntax of PBS job limit directive
python 3.x overwrite previous terminal line
Deploying django app. on heroku (gunicorn, wsgi issue)
How can I create an "ID" column in one dataframe based on the index of another dataframe?
PIL Module Error
pandas.read_html returns only one table
© Copyright 2017 Publishing Limited. All rights reserved.