count Questions
7
Solved
I have a vector of scalar values of which I'm trying to get: "How many different values there are".
For instance in group <- c(1,2,3,1,2,3,4,6) unique values are 1,2,3,4,6 so I want to get 5.
...
Ellisellison asked 5/8, 2013 at 10:56
6
Solved
I have created the following pandas dataframe:
import pandas as pd
import numpy as np
ds = {'col1':[1,"S",3,4,"S"], 'col2' : [6,"S",8,9,"S"],'col3' : [67,No...
9
Trying to create a function that returns the # of files found a directory and its subdirectories. Just need help getting started
Bashkir asked 4/6, 2013 at 5:22
5
Solved
im trying to count the number of words in variable written in non-latin language (Bulgarian). But it seems that str_word_count() is not counting non-latin words. The encoding of the php file is UTF...
22
Solved
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, it looks like this:
function getlength(n...
Homogeneity asked 14/2, 2013 at 16:39
8
Solved
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 the number of different rows I come up with
dif...
6
Assuming that I have a list with a huge number of items,
l = [ 1, 4, 6, 30, 2, ... ]
I want to get the number of items from that list, where an item satisfies a certain condition. My first thought...
Tombola asked 13/3, 2013 at 0:51
2
Solved
I am new to Pyspark. I am trying to use alias for count function. For some reason if I use agg in front of count then alias is working but if I am not aggregating then the alias is giving me error....
5
Solved
I can perform the following SQL Server selection of distinct (or non-repeating names) from a column in one table like so:
SELECT COUNT(DISTINCT [Name]) FROM [MyTable]
But what if I have more tha...
Bit asked 15/7, 2011 at 19:19
6
Solved
How can I select the count from an inner join with grouping?
SELECT COUNT(table1.act) FROM table1
INNER JOIN table2 ON table1.act = table2.act
GROUP BY table1.act
This will return the count of a...
17
Solved
How would I count consecutive characters in Python to see the number of times each unique digit repeats before the next unique digit?
At first, I thought I could do something like:
word = '1000'
c...
3
Solved
Schema :
SubscriberId NewsletterIdCsv
------------ ---------------
1 48,51,94
2 43,22
3 33,11
4 90,61
I Need to get the count for each rows NewsletterIdCsv and then add all of them up to ge...
Sailing asked 11/2, 2013 at 18:35
4
Is there an easy way to obtain a count of installed npm packages, both global and local to an application?
For example, after running create-react-app [1], I get screens-full of packages and depen...
Bashibazouk asked 1/2, 2018 at 17:3
6
I have a table with a varchar(255) field. I want to get (via a query, function, or SP) the number of occurences of each word in a group of rows from this table.
If there are 2 rows with these fiel...
6
Solved
Array
(
[0] => 'hello'
[1] => 'there'
[2] =>
[3] =>
[4] => 3
)
// how to get the number 5?
4
Solved
I have this dataframe, i want to count a value in VAL1-VAL3, and sum it if is in T1-T5
VAL1 <- c(1,3,2,4,9)
VAL2 <- c(5,6,3,1,2)
VAL3 <- c(7,5,5,9,5)
T1 <- c(4,2,6,4,8)
T2 <- c(10,1,...
9
Solved
10
Suppose I have a list of items, like:
['apple', 'red', 'apple', 'red', 'red', 'pear']
I want a dictionary that counts how many times each item appears in the list. So for the list above the result...
21
Solved
I have a vector of numbers:
numbers <- c(4,23,4,23,5,43,54,56,657,67,67,435,
453,435,324,34,456,56,567,65,34,435)
How can I have R count the number of times a value x appears in the vector?
...
4
Solved
I have a dataframe which contains null values:
from pyspark.sql import functions as F
df = spark.createDataFrame(
[(125, '2012-10-10', 'tv'),
(20, '2012-10-10', 'phone'),
(40, '2012-10-10', 'tv...
Gowrie asked 5/2, 2018 at 21:50
15
Solved
How do I count the number of records returned by a group by query,
For eg:
select count(*)
from temptable
group by column_1, column_2, column_3, column_4
Gives me,
1
1
2
I need to count th...
Abelmosk asked 28/2, 2011 at 20:6
9
I want to get the number of selected rows as well as the selected data. At the present I have to use two sql statements:
one is
select * from XXX where XXX;
the other is
select count(*) fro...
21
Solved
6
I am using the mtcars dataset. I want to find the number of records for a particular combination of data. Something very similar to the count(*) group by clause in SQL. ddply() from plyr is working...
32
Solved
In Python, how do you find the number of digits in an integer?
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