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How to display pandas DataFrame of floats using a format string for columns?
... '${:,.2f}'.format
df = pd.DataFrame([123.4567, 234.5678, 345.6789, 456.7890],
index=['foo','bar','baz','quux'],
columns=['cost'])
print(df)
yields
cost
foo $123.46
bar $234.57
baz $345.68
quux $456.79
but this only works if you want every float to...
Map function in MATLAB?
... map function does for numeric arrays:
>> y = arrayfun(@(x) x^2, 1:10)
y =
1 4 9 16 25 36 49 64 81 100
There are two other built-in functions that behave similarly: cellfun (which operates on elements of cell arrays) and structfun (which operates on each fi...
StringUtils.isBlank() vs String.isEmpty()
...
407
StringUtils.isBlank() checks that each character of the string is a whitespace character (or th...
Why are there two kinds of functions in Elixir?
...
A function can have multiple clauses too:
x = 1
fun = fn
y when y < 0 -> x - y
y -> x + y
end
fun.(2) #=> 3
fun.(-2) #=> 3
Now, let's try something different. Let's try to define different clauses expecting a different number of arguments:
fn
x, y -> x + y
x -> x
en...
Does C# have extension properties?
...
403
For the moment it is still not supported out of the box by Roslyn compiler ...
Until now, the ...
How to convert a string into double and vice versa?
...nearest int can then be done as
int myInt = (int)(myDouble + (myDouble>0 ? 0.5 : -0.5))
I'm honestly not sure if there's a more streamlined way to convert back into a string than
NSString* myNewString = [NSString stringWithFormat:@"%d", myInt];
...
How to convert a currency string to a double with jQuery or Javascript?
...
Remove all non dot / digits:
var currency = "-$4,400.50";
var number = Number(currency.replace(/[^0-9.-]+/g,""));
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Block Comments in a Shell Script
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answered Jun 4 '09 at 0:02
sunny256sunny256
7,98822 gold badges2222 silver badges2222 bronze badges
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Format a datetime into a string with milliseconds
...me('%Y-%m-%d %H:%M:%S.%f')[:-3]
>>>> OUTPUT >>>>
2020-05-04 10:18:32.926
Note: For Python3, print requires parentheses:
print(datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S.%f')[:-3])
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Getting DOM elements by classname
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edited Sep 8 at 0:32
robin eriksson
5655 bronze badges
answered Jun 16 '11 at 2:07
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