Dec 9, 2013 · Basically this adds a really small value to the string to force it to round up properly on the unpredictable instances where it doesn't ordinarily with the round function when you expect it to.

Oct 1, 2014 · Is there a way to round a single column in pandas without affecting the rest of the dataframe? >>> print (df) item value1 value2 0 a 1.12 1.3 1 a 1.50 2.5 2 a ...

May 31, 2012 · Python 3's way (called "round half to even" or "banker's rounding") is considered the standard rounding method these days, though some language implementations aren't on the bus yet. The simple "always round 0.5 up" technique results in a slight bias toward the higher number. With large numbers of calculations, this can be significant.

Jan 22, 2015 · Here, num is the decimal number. x is the decimal up to where you want to round a floating number. The advantage over other implementation is that it can fill zeros at the right end of the decimal to make a deciaml number up to x decimal places.

May 5, 2017 · How does one round a number UP in Python? I tried round (number) but it rounds the number down. Here is an example: round (2.3) = 2.0 and not 3, as I would like. Then I tried int (number + .5) but it

The documentation for the round() function states that you pass it a number, and the positions past the decimal to round. Thus it should do this: n = 5.59 round(n, 1) # 5.6 But, in actuality, good...

How do I round a decimal to a particular number of decimal places using the Python 3.0 format function?

The simplest way in Python 3 is to use numpy.round() to make a rounded array, and list() to turn it back into a list. There is no need to make the list into an array before sending it to numpy.round()

@simomo Python's round() function used to round up in older versions, but they switched the rounding strategy to half to even in Python 3. It was a deliberate choice because this produces better results.

Apr 23, 2015 · You can use the builtin round() function and float formatting: >>> print "{0:0.2f}".format(round(x, 2)) 0.71 Some Notes: {0.2f} will format a float to 2 decimal places. round(x, 2) will round up to 2 decimal places. Side Note: round() is really necessary IHMO if you want to "round" the number before "display". It really depends on what you're doing!