FAQ Database Discussion Community

## How do I count the number of times a date shows up in a list?

python,csv,counting,arcpy
So I am having an issue. I am trying to create a script that will look at a layer in ArcMap (we use 10.2.2) create a csv file that for the final output will have the technicians name and the number of tracts that they have looked at on a...

## 3 Dice Sum Counting Program Java

java,arrays,sum,counting,dice
For my Computer Science Class, my teacher is asking us to do the following: Program Description: You are learning to play a new game that involves 3 six-sided die. You know that if you knew the probability for each of the possible rolls of the die that you’d be a...

## Recursion Function to count the occurrence of a digit in a number (python)

python,function,recursion,counting
I need to find out the amount of times that the number one is in a number. Here is what I have: Sample input: 11001 Desired output: 3 def oneCount(n): n = str(n) if n == '1': return 1 else: return 1 + oneCount(n[:-1]) print oneCount(1100) Right now it returns...

## Counting pagination elements and add CSS to it

php,jquery,pagination,counting
So I found a nice PHP pagination class and adapted it for my needs. /*********************************************\ * Mini Paginator * * Made by Wilson Fernandez for multicoders.com* * [email protected] * \*********************************************/ Now I want to make it responsive and found a cool way to do this here -> Responsive pagination with...

## detection and counting objects in images using matlab [closed]

matlab,object,image-processing,detection,counting
my project is to count White fly in an image using matlab, I'm new to image processing so I don't know where to start from , I searched for papers about the topic but I could't find anything useful , my question is to help me start from a point...

## r - fast way to add counting index but numbers that are sequentially repeated have the same index

r,performance,loops,indexing,counting
I am wondering if there is a faster way to make a counting index without using a loop. I find the looping very slow especially when the data is so big. For illustration, here is the input and desired output x<-c(2,3,9,2,4,4,3,4,4,5,5,5,1) output 1,2,3,4,5,5,6,7,7,8,8,8,9 My inefficient code is this: group[1]<-1 counter<-1...

## Count how many text files in a directory using python 2.7 and edit them

python,python-2.7,variables,counting
I need help with counting the amount of files in a directory/folder (Windows 7) in python so then if there is more than 20 .txt files I can delete some there is always 20 files that are .txt. If you create another one, using python, it deletes the oldest one....

## How to calculate which item of panel was selected

c#,panel,counting
I'm programing a little C# program for browsing pictures, but I got stuck. I have a Panel full of PictureBoxes, is there any way to calculate number of the PictureBoxes that were clicked on? For example, if I have a ListBox I can easily type listBox1.SelectedIndex and get the number....

## comparing and counting items in python (while loop)

I'm trying to make a script that: Reads in a line of text line-by-line from a file For each line, see if any phrases from an array (animal_keywords) are there If there is, increase the animal count by 1 If there isn't, increase the other count by 1 Print the...

## Counting number of time the articles “a”,“an” are being used in a text file

java,counting
I'm trying to make a program that count the number of words, lines, sentences, and also the number of articles 'a', 'and','the'. So far I got the words, lines, sentences. But I have no idea who I am going to count the articles. How can a program make the difference...

## Why do my variables used to count X and O wins in TicTacToe vary with every test? (Java)

java,int,counting,tic-tac-toe
I am currently working on an assigned project to create a tic tac toe game in java. Here is what I have so far, all the code works pretty much and the game and its functions work perfectly fine. I am supposed to keep track of X Wins, O Wins,...

## Most efficient way to count occurences?

java,performance,counting
I've got an array of bytes (primitive), they can have random values. I'm trying to count occurrences of them in the array in the most efficient/fastest way. Currently I'm using: HashMap<Byte, Integer> dataCount = new HashMap<>(); for (byte b : data) dataCount.put(b, dataCount.getOrDefault(b, 0) + 1); This one-liner takes ~500ms...

## count the words starts with a-z character using dictionary in python [closed]

python,list,dictionary,key-value,counting
Load the dictionary in python as a list from following url "https://cfstatic.org/static/words.txt". Using this word list, create a python dictionary (or an array if you are using php) with the following property : key : alphabet [a-z] value: number of words starting with that alphabet in the dictionary I...

## extract letters by counting them

csh,counting,letters
I am looking for extracting some of the string by counting the letter from the beginning in csh shell. For example, set a = "hello 911 is not 91 only" I want to extract letter from position 8 to 10 which is 911, similar to a(8:10). Similarly, 20 to 21...

## Generate string from 00:00:00 to FF:FF.FF in php

php,hex,counting
I need to generate and echo values from 00:00:00 to FF:FF.FF like for counting from 1 to 1000000. I know with numbers but how with hexadecimal numbers? for example I need this at echo: 00:00:00 00:00:01 00:00:02 . . . FF:FF:00 FF:FF:01 FF:FF:02 . . . FF:FF:FF How to do...

## How to count X working days back in powershell?

powershell,counting,workday
Could anybody help me with powershell script that would count X working days back in time from current date? The script should ask how many working days back to count and the output would be some kind of date back in time. Example: I want to know how many calendar...

## C++ - Counting the number of vowels from a file

c++,string,file,counting,lowercase
I'm having trouble implementing a feature that counts and displays the number of vowels from a file. Here is the code I have so far. #include <iostream> #include <fstream> #include <string> #include <cassert> #include <cstdio> using namespace std; int main(void) {int i; string inputFileName; string s; ifstream fileIn; char ch;...

## Number of pairs (a, b) such that a*b < N where a, b, N are integers greater than 0

c,math,counting
I have this code in C to calculate number of such pairs:: long long factors(int N) { int nr = (int) sqrt(N); int b; int fix = N - nr * nr - 1; long long ans = 0; for (b = 2; b <= nr; b++) { if (N...

## Adding a int variable to a Label and give it +1

c#,int,var,counting
I'm busy with an maze and i currently run on this problem. I want when ever someone hits the wall he uses the method Movetostart and i want to let it count with the var death. So far i got this. int death = 0; private void MoveToStart() { Count.Text...

## grouping, comparing, and counting rows in r

r,grouping,counting
I have a data frame that looks as the following: system Id initial final 665 9 16001 6070 6071 683 10 16001 6100 6101 696 11 16001 6101 6113 712 10 16971 6150 6151 715 11 16971 6151 6163 4966 7 4118 10238 10242 5031 9 4118 10260 10278 5088...

## Sas value counting

sas,counting
I am wanting to count the number of time a certain value appears in a particular column in sas. For example in the following dataset the value 1 appears 3 times value 2 appears twice, value 3 appears once, value 4 appears 4 times and value 5 appears four times....

## Find First Missing Element in a vector

c++,algorithm,vector,counting,missing-data
This question has been asked before but I cannot find it for C++. If I have a vector and I have a starting number, does std::algorithm provide me a way to find the next highest missing number? I can obviously write this in a nested loop, I just cant shake...