sum Questions
4
From reading the pandas documentation, and a good question and answer (What does axis in pandas mean?), I had expected axis=0 to always mean with respect to columns. This works for me when I work w...
3
Solved
Is there a way to avoid using specific values when applying sum and mean in numpy?
I'd like to avoid, for instance, the -999 value when calculating the result.
In [14]: c = np.matrix([[4., 2.],[4...
4
I am trying to create a calculator, but I am having trouble writing a function that will subtract numbers from a list.
For example:
class Calculator(object):
def __init__(self, args):
self.args ...
Purgative asked 1/4, 2012 at 10:0
5
Solved
Assume I have a tibble (in my example here only with four columns). In real I have two hourly time series therefore 2 times 24 columns:
s1.x,...,s24.x, s1.y,...,s24.y
Now I want to sum up column s1...
4
I have Example Class:
class Example {
private:
int testValue1;
int testValue2;
int testValue3;
public:
Example(int pVal1, int pVal2, int pVal3);
Example(const Example);
const Example oper...
Durkheim asked 17/10, 2013 at 11:32
6
I have a query like this, I want to use this query in Codeigniter.
SELECT sum(price)
FROM (SELECT price
FROM items
ORDER BY price DESC
LIMIT 3
) AS subquery;
I have did
$this->db->select...
Languish asked 2/4, 2015 at 9:44
11
Solved
Let data = [[3,7,2],[1,4,5],[9,8,7]]
Let's say I want to sum the elements for the indices of each list in the list, like adding numbers in a matrix column to get a single list. I am assuming that ...
2
Solved
I'm struggling to get a groupby on a collection to work - I'm not getting the concept just yet.
I'm pulling a collection of results from a table for a player the eloquent collection will have data ...
Moretta asked 24/6, 2020 at 8:1
5
Solved
I want to aggregate the sum of a column, while tracking the presence of NULL values which signal an error condition. E.g., take the table numbers:
# select * from numbers;
n | l
------+-----
1 ...
Laynelayney asked 26/9, 2016 at 13:0
4
I am looking for an array_merge() function that does NOT replace values, but ADDS them.
Example, this is the code I am trying:
echo "<pre>";
$a1 = array(
"a" => 2
,...
Yester asked 22/5, 2011 at 5:39
12
Solved
If I want to find the sum of the digits of a number, i.e.:
Input: 932
Output: 14, which is (9 + 3 + 2)
What is the fastest way of doing this?
I instinctively did:
sum(int(digit) for digit i...
6
Solved
I have a Pandas data frame, as shown below, with multiple columns and would like to get the total of column, MyColumn.
X MyColumn Y Z
0 A 84 13.0 69.0
1 B 76 77.0 127.0
2 C 28 69.0 16.0
3 D 28...
10
Solved
I've got two (or more) arrays with 12 integers in each (corresponding to values for each month). All I want is to add them together so that I've got a single array with summed values for each month...
3
Solved
I am trying to create a new vector that is the sum of 35 other vectors. The problem is that there are lots of NA values, but for this particular use, I want to treat those as zeros. Adding the vect...
7
Solved
I'm doing a "select sum(foo) from bar" query on a MySQL database that's summing up 7.3mm records and taking about 22 seconds per run. Is there a trick to speeding up sums in MySQL?
Commensal asked 1/2, 2010 at 16:55
4
Solved
I am storing scores of a user in google cloud firestore as each score a new document in the collection named as "points".
collection name: points
document1: {id:111,userid:345,value:50}
docume...
Dunston asked 19/1, 2018 at 11:46
29
I'm having a problem finding the sum of all of the integers in an array in Java. I cannot find any useful method in the Math class for this.
9
I have the following condensed data set:
a<-as.data.frame(c(2000:2005))
a$Col1<-c(1:6)
a$Col2<-seq(2,12,2)
colnames(a)<-c("year","Col1","Col2")
for (i in 1:2){
a[[paste("Var_", i, s...
1
Solved
Let's say I have a function sum that takes a variadic parameter pack.
This function needs to ADD UP all of the parameters of the parameter pack using the operator +.
NOTE: It CANNOT use the operat...
Biographer asked 17/7, 2023 at 4:45
7
Solved
Is there a simple and quick way to use sum() with non-integer values?
So I can use it like this:
class Foo(object):
def __init__(self,bar)
self.bar=bar
mylist=[Foo(3),Foo(34),Foo(63),200]
resu...
23
Solved
I have the following two lists:
first = [1,2,3,4,5]
second = [6,7,8,9,10]
Now I want to add the items from both of these lists into a new list.
output should be
third = [7,9,11,13,15]
2
Could anyone explain why pandas doesn't sum across both axes with parameter axis=None. As it said in API reference:
pandas.DataFrame.sum
DataFrame.sum(axis=None, skipna=True, numeric_only=False, m...
4
Solved
I have a Google doc that list a bunch of hh:mm durations in a column, like:
1:30
1:00
0:30
I am using SUM(D2:D24) to sum it up, and recently the total hh:mm went above 24 hours, so my total ho...
Conceptionconceptual asked 24/10, 2019 at 19:59
5
Solved
I want to create a TOTAL row at the top of my spreadsheet. In this row, each cell should be the SUM of the values in the column below the TOTAL row.
So for example, if the total row is Row 1, cell ...
Ramrod asked 31/8, 2012 at 22:25
2
Solved
I look most of the previously asked questions but was not able to find answer for my question:
I have following dataframe
id year month score num_attempts
0 483625 2010 01 50 1
1 967799 2009 03 50...
Exodontics asked 11/11, 2016 at 17:14
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