for-loop

Store multiple outputs from each iteration of a for loop

由 夙愿已清 提交于 2021-02-20 05:18:29
问题 Given a fix path and a very limited directories from year. I'm trying to obtain each combination of path between this initial combination ( fixPath - year ) and the different, non-fixed and non-equally quantity , subdirectories contained in each combination of fixPath - year fixPath <- "C:/Users/calcazar/Desktop/example" year <- 2008:2010 pathVector <- paste(fixPath, year, sep = "/") pathVector [1] "C:/Users/calcazar/Desktop/example/2008" "C:/Users/calcazar/Desktop/example/2009" [3] "C:/Users

Store multiple outputs from each iteration of a for loop

由 旧巷老猫 提交于 2021-02-20 05:16:14
问题 Given a fix path and a very limited directories from year. I'm trying to obtain each combination of path between this initial combination ( fixPath - year ) and the different, non-fixed and non-equally quantity , subdirectories contained in each combination of fixPath - year fixPath <- "C:/Users/calcazar/Desktop/example" year <- 2008:2010 pathVector <- paste(fixPath, year, sep = "/") pathVector [1] "C:/Users/calcazar/Desktop/example/2008" "C:/Users/calcazar/Desktop/example/2009" [3] "C:/Users

How can I get a row in Sqlite3 table with Tkinter Listbox widget?

由 时光怂恿深爱的人放手 提交于 2021-02-20 03:00:06
问题 I have Python program connected to Sqlite3 database with Tkinter on the frontend. My database table (subjectlist) consists of four columns: [id (unique interger), subject (text), serial (unique interger), is_active (boolean interger)]. Here is my program: import sqlite3 from tkinter import * conn = sqlite3.connect('database.db') c = conn.cursor() c.execute('SELECT COUNT() FROM subjectlist WHERE is_active = 1') number = c.fetchone()[0] c.execute('SELECT * FROM subjectlist WHERE is_active = 1

Generating Nested Loops at Run Time in C [closed]

由 余生颓废 提交于 2021-02-20 01:32:34
问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 11 months ago . Improve this question I know using recursions way but it works just for loops which beginning and ending statements are same like code below for (int i=1 ; i<5;i++){ for (int j=0; j<5;j++){ for (int m= 0;m<5;m++) { // N time } } } But my problem is different. I do not know N level and beginning

colon in for loop in C++

由 岁酱吖の 提交于 2021-02-20 01:01:23
问题 In the following code I am trying to edit the contents of an unordered_map: class A { public: A() {std::cout << "Constructor called, address=" << this << std::endl;val=1;} int val; }; void main(void) { std::unordered_map<int,A> um; for (int i=0;i<3;i++) std::cout << "um[" << i << "]=" << &(um[i]) << ", val=" << um[i].val << std::endl; for (auto it : um) std::cout << "&it.second=" << &(it.second) << ", val=" << it.second.val << std::endl; int index = 1; for (auto um_it : um) um_it.second.val =

Initialize variable for omp reduction

由 混江龙づ霸主 提交于 2021-02-19 08:40:24
问题 The OpenMP standard specifies an initial value for a reduction variable. So do I have to initialize the variable and how would I do that in the following case: int sum; //... for(int it=0;i<maxIt;i++){ #pragma omp parallel { #pragma omp for nowait for(int i=0;i<ct;i++) arrayX[i]=arrayY[i]; sum = 0; #pragma omp for reduction(+:sum) for(int i=0;i<ct;i++) sum+=arrayZ[i]; } //Use sum } Note that I use only 1 parallel region to minimize overhead and to allow the nowait in the first loop. Using

how to add two or more images to the same slide in for loop python-pptx

由 ↘锁芯ラ 提交于 2021-02-19 07:55:06
问题 I'm trying to add images into one slide using python pptx package. How to add two images to one slide in python pptx But I have difficulties with when I do this in a for loop; let's say we have a bunch of pictures in the directory and we want to resize and add the current slide as we go along with the pictures in directory. When I have eagle or hawk in the directory resize & position them and put them into current slide and move the next one! What I am getting is that each picture in

How to print a list with a delay between each item in HTML

由 徘徊边缘 提交于 2021-02-19 07:03:22
问题 <html> <body> //Id for each item <p id=1></p> <p id=2></p> <p id=3></p> <script> for(i = 0; i < 3; i++) { window.setTimeout(press, 1000); //Should use For loop variable to fetch and print specific element's Id function press() { document.getElementById(i).innerHTML = i; } } </script> </body> </html> I'm a bit of a noob to all of this. Most of these commands I got from w3schools and I'm just trying to piece everything together bit by bit. 回答1: You can pass an argument through to the timeout

MATLAB fast (componentwise) vector operations are…really fast

由 血红的双手。 提交于 2021-02-19 02:53:29
问题 I am writing MATLAB scripts since some time and, still, I do not understand how it works "under the hood". Consider the following script, that do some computation using (big) vectors in three different ways: MATLAB vector operations; Simple for cycle that do the same computation component-wise; An optimized cycle that is supposed to be faster than 2. since avoid some allocation and some assignment. Here is the code: N = 10000000; A = linspace(0,100,N); B = linspace(-100,100,N); C = linspace(0

MATLAB fast (componentwise) vector operations are…really fast

由 前提是你 提交于 2021-02-19 02:53:01
问题 I am writing MATLAB scripts since some time and, still, I do not understand how it works "under the hood". Consider the following script, that do some computation using (big) vectors in three different ways: MATLAB vector operations; Simple for cycle that do the same computation component-wise; An optimized cycle that is supposed to be faster than 2. since avoid some allocation and some assignment. Here is the code: N = 10000000; A = linspace(0,100,N); B = linspace(-100,100,N); C = linspace(0
订阅 for-loop