tagged [count]

How to count items in JSON data

How to count items in JSON data How I can get the number of elements in node of JSON data? I need to get the number of elements from node `data['result'][0]['run']`. It

11 Nov at 17:52

Counting the number of elements with the values of x in a vector

Counting the number of elements with the values of x in a vector I have a vector of numbers: ``` numbers

4 Oct at 11:29

How to count days between two dates in PHP?

How to count days between two dates in PHP? If I have a couple of strings `$startDate` and `$endDate` which are set to (for instance) `"2011/07/01"` and `"2011/07/17"` (meaning 1 July 2011 and 17 July...

11 Dec at 10:42

Count number of lines in a git repository

Count number of lines in a git repository How would I count the total number of lines present in all the files in a git repository? `git ls-files` gives me a list of files tracked by git. I'm looking ...

1 Apr at 08:17

Find duplicate lines in a file and count how many time each line was duplicated?

Find duplicate lines in a file and count how many time each line was duplicated? Suppose I have a file similar to the following: I would like to find how many times '123' was duplicated, how many time...

13 Aug at 19:26

Counting the number of distinct keys in a dictionary in Python

Counting the number of distinct keys in a dictionary in Python I have a a dictionary mapping keywords to the repetition of the keyword, but I only want a list of distinct words so I wanted to count th...

28 Apr at 08:56

C# EPPlus OpenXML count rows

C# EPPlus OpenXML count rows With EPPlus and OpenXML does anyone know the syntax on how to count the rows? Say my worksheet is called "worksheet" `int numberRows = worksheet.rows.count()`? or `workshe...

23 Mar at 10:9

Performance: List.Count vs checking a stored variable

Performance: List.Count vs checking a stored variable I wonder if this makes any difference: ``` for (int i = 0; i

18 Jun at 13:10

Count the Number of Tables in a SQL Server Database

Count the Number of Tables in a SQL Server Database I have a SQL Server 2012 database called `MyDatabase`. How can I find how many tables are in the database? I'm assuming the format of the query woul...

SQL count rows in a table

SQL count rows in a table I need to send a SQL query to a database that tells me how many rows there are in a table. I could get all the rows in the table with a SELECT and then count them, but I don'...

7 Mar at 16:17

pandas python how to count the number of records or rows in a dataframe

pandas python how to count the number of records or rows in a dataframe Obviously new to Pandas. How can i simply count the number of records in a dataframe. I would have thought some thing as simple ...

21 Mar at 00:18

How do you find the row count for all your tables in Postgres

How do you find the row count for all your tables in Postgres I'm looking for a way to find the row count for all my tables in Postgres. I know I can do this one table at a time with: but I'd like to ...

7 Mar at 10:48

Count the number of times a string appears within a string

Count the number of times a string appears within a string I simply have a string that looks something like this: "7,true,NA,false:67,false,NA,false:5,false,NA,false:5,false,NA,false" All I want to do...

17 Dec at 19:55

Using a dictionary to count the items in a list

Using a dictionary to count the items in a list Suppose I have a list of items, like: I want a dictionary that counts how many times each item appears in the list. So for the list above the result sho...

31 Jul at 21:6

Eclipse count lines of code

Eclipse count lines of code I've tried the [Metrics plugin](http://metrics.sourceforge.net) and although it's nice and all, it's not what my boss is looking for. It counts a line with just one `}` as ...

1 Oct at 06:20

count of entries in data frame in R

count of entries in data frame in R I'm looking to get a count for the following data frame: of the number of children who believe. What command would I use to get this? (Th

28 Nov at 19:38

Get number of digits with JavaScript

Get number of digits with JavaScript As the title of my post suggests, I would like to know how many digits `var number` has. For example: If `number = 15;` my function should return `2`. Currently, i...

30 Jan at 07:2

How to count the number of elements that match a condition with LINQ

How to count the number of elements that match a condition with LINQ I've tried a lot of things but the most logical one for me seems this one: `AllMyControls` is a Collection of `UserControls`, what ...

19 Mar at 22:28

Iterating through the Alphabet - C# a-caz

Iterating through the Alphabet - C# a-caz I have a question about iterate through the Alphabet. I would like to have a loop that begins with "a" and ends with "z". After that, the loop begins "aa" and...

13 Dec at 09:35

mysql: get record count between two date-time

mysql: get record count between two date-time I am stuck with a problem in MySQL. I want to get the count of records between two date-time entries. For example: I have a column in my table named 'crea...

18 Jul at 21:8

Multiple aggregate functions in HAVING clause

Multiple aggregate functions in HAVING clause Due to the nature of my query i have records with counts of 3 that would also fit the criteria of having count of 2 and so on. I was wondering is it possi...

7 Feb at 16:39

How to count differences between two files on linux?

How to count differences between two files on linux? I need to work with large files and must find differences between two. And I don't need the different bits, but the number of differences. To find ...

4 Jan at 07:21

COUNT / GROUP BY with active record?

COUNT / GROUP BY with active record? I have a table with the following info: What I want is a top 10 (array) with most entries per user_id (order high to low). So using the table above I need the

Parameter Count Mismatch

Parameter Count Mismatch Having trouble with the following segment of code. I'm getting a parameter count mismatch. I've had to write this because of problems with multiple threads and unsafe updates....

28 Oct at 11:17

Count number of occurences for each unique value

Count number of occurences for each unique value Let's say I have: Now, I want to count the number of times each unique value appears. `unique(v)` returns what the unique values are, but not how many ...

17 Jun at 10:40