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How do you round a floating point number in Perl?
...t
route.
printf("%.3f", 3.1415926535); # prints 3.142
The POSIm>X m> module (part of the standard Perl distribution) implements
ceil(), floor(), and a number of other mathematical and trigonometric
functions.
use POSIm>X m>;
$ceil = ceil(3.5); # 4
$floor = f...
Insert Data Into Temp Table with Query
I have an em>x m>isting query that outputs current data, and I would like to insert it into a Temp table, but am having some issues doing so. Would anybody have some insight on how to do this?
...
Sort array of objects by single key with date value
...
You can use Array.sort.
Here's an em>x m>ample:
var arr = [{
"updated_at": "2012-01-01T06:25:24Z",
"foo": "bar"
},
{
"updated_at": "2012-01-09T11:25:13Z",
"foo": "bar"
},
{
"updated_at": "2012-01-05T04:13:24Z",
"foo": "...
Python str vs unicode types
...
unicode is meant to handle tem>x m>t. Tem>x m>t is a sequence of code points which may be bigger than a single byte. Tem>x m>t can be encoded in a specific encoding to represent the tem>x m>t as raw bytes(e.g. utf-8, latin-1...).
Note that unicode is not encoded! The inter...
Cannot install Lm>x m>ml on Mac os m>x m> 10.9
I want to install Lm>x m>ml so I can then install Scrapy.
23 Answers
23
...
Pandas convert dataframe to array of tuples
...out:
subset = data_set[['data_date', 'data_1', 'data_2']]
tuples = [tuple(m>x m>) for m>x m> in subset.to_numpy()]
for pandas < 0.24 use
tuples = [tuple(m>x m>) for m>x m> in subset.values]
share
|
improve thi...
Create space at the beginning of a UITem>x m>tField
I want to leave a bit of space at the beginning of a UITem>x m>tField, just like here:
Add lefthand margin to UITem>x m>tField
21 An...
How to count the frequency of the elements in an unordered list?
...
1
2
Nem>x m>t
155
...
Android: Generate random color on click?
...
Random rnd = new Random();
paint.setARGB(255, rnd.nem>x m>tInt(256), rnd.nem>x m>tInt(256), rnd.nem>x m>tInt(256));
or
Random rnd = new Random();
int color = Color.argb(255, rnd.nem>x m>tInt(256), rnd.nem>x m>tInt(256), rnd.nem>x m>tInt(256));
view.setBackgroundColor(color);
Though in your case i...
Replacing Pandas or Numpy Nan with a None to use with MysqlDB
...null(df), None)
Note: this changes the dtype of all columns to object.
Em>x m>ample:
In [1]: df = pd.DataFrame([1, np.nan])
In [2]: df
Out[2]:
0
0 1
1 NaN
In [3]: df1 = df.where(pd.notnull(df), None)
In [4]: df1
Out[4]:
0
0 1
1 None
Note: what you cannot do recast the DataFr...