divide

list1=['hello','hope','hate','hack','bit','basket','code','come','chess'] What I need is: list2=[['hello','hope','hate','hack'],['bit','basket'],['code','come','chess']] If the first character is the same and is the same group, then sublist it. How can I solve this? You can use itertools.groupby : >>> from itertools import groupby >>> list1 = ['hello','hope','hate','hack','bit','basket','code','come','chess'] >>> [list(g) for k, g in groupby(list1, key=lambda x: x[0])] [['hello', 'hope', 'hate', 'hack'], ['bit', 'basket'], ['code', 'come', 'chess']] Expanding on TerryA's answer: To create a

Hey all, first post and a noob in Android programming, but willing to learn! Basically I've taken the Google sample of a tab layout from here I found that method to be very easy to create tabs with text within each tab, but I'm trying to make it so that when a tab is selected, I want the text listed below to be separated by a dividing line. So that a line is dividing between each paragraph, however I'm having trouble doing this. This is what I have so far: main.xml: <?xml version="1.0" encoding="utf-8"?> <TableRow> <TextView android:id="@+id/textview1" android:layout_width="fill_parent"

How can I split the given String in Swift into groups with given length, reading from right to left? For example, I have string 123456789 and group length of 3. The the string should be divided into 3 groups: 123 , 456 , 789 . String 1234567 will be divided into 1 , 234 , 567 So, can you write some nice code in Swift: func splitedString(string: String, length: Int) -> [String] { } BTW tried function split() , but as I understand it works only with finding some symbol Just to add my entry to this very crowded contest ( SwiftStub ): func splitedString(string: String, length: Int) -> [String] {

I'm working on a micro-controller without hardware multiply and divide. I need to cook up software algorithms for these basic operations that are a nice balance of compact size and efficiency. My C compiler port will employ these algos, not the the C developers themselves. My google-fu is so far turning up mostly noise on this topic. Can anyone point me to something informative? I can use add/sub and shift instructions. Table lookup based algos might also work for me, but I'm a bit worried about cramming so much into the compiler's back-end...um, so to speak. Here's a simple multiplication

I'm trying to divide each number within a data frame with 16 columns by a specific number for each column. The numbers are stored as a data frame with 1-16 corresponding to the samples in the larger data frames columns 1-16. There is a single number per column that I need to divide by each number in the larger spreadsheet and print the output to a final spreadsheet. Here's and example of what I'm starting with. The spreadsheet to be divided. X131.478.1 X131.478.2 X131.NSC.1 X131.NSC.2 X166.478.1 X166.478.2 1/2-SBSRNA4 4 2 2 6 7 6 A1BG 93 73 88 86 58 65 A1BG-AS1 123 103 96 128 46 57 The numbers

I'm trying to divide 2 series to get their ratio. For example I'm got sites (a.com, b.com, c.com) as * (All sites) Each of them has total sections count and errors occurred stats. I'm wanna to show as bars errors/sections where section > errors for each site to each erros for this site. Here I'm whant to got 3 bars. So: A parser.*.sections.total B parser.*.errors.total X-Axis Mode:Series Display:DrawMode: Bars When i'm trying to use divideSeries I'm always got VallueError (divideSeries second argument must reference exactly 1 series) You can use mapSeries with divideSeries to do vector