Rounding up to the next 100
If one has a floating number as a string, is there a spiffy way to round that string-number UP to the nearest 100? XstrNmbr = 3579.127893 -- would want to round that to 3600. Thanks for any help! -- http://mail.python.org/mailman/listinfo/python-list
Re: Rounding up to the next 100
noydb jenn.du...@gmail.com writes: If one has a floating number as a string, is there a spiffy way to round that string-number UP to the nearest 100? XstrNmbr = 3579.127893 -- would want to round that to 3600. Thanks for any help! XstrNmbr = 3579.127893 round(float(XstrNmbr), -2) 3600.0 HTH -- Arnaud -- http://mail.python.org/mailman/listinfo/python-list
Re: Rounding up to the next 100
Arnaud Delobelle arno...@googlemail.com writes: XstrNmbr = 3579.127893 I meant XstrNmbr = 3579.127893 round(float(XstrNmbr), -2) 3600.0 -- Arnaud -- http://mail.python.org/mailman/listinfo/python-list
RE: Rounding up to the next 100
From: noydb If one has a floating number as a string, is there a spiffy way to round that string-number UP to the nearest 100? XstrNmbr = 3579.127893 -- would want to round that to 3600. What's wrong with round? round( XstrNmbr, -2 ) seems to do the trick. Or do you want to get rid of the decimal point as well? The information contained in this message and any attachment may be proprietary, confidential, and privileged or subject to the work product doctrine and thus protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify me immediately by replying to this message and deleting it and all copies and backups thereof. Thank you. -- http://mail.python.org/mailman/listinfo/python-list
Re: Rounding up to the next 100
noydb jenn.du...@gmail.com writes: If one has a floating number as a string, is there a spiffy way to round that string-number UP to the nearest 100? XstrNmbr = 3579.127893 -- would want to round that to 3600. math.ceil(3579.127893/100)*100 Florian -- GUIs programmieren mit Python und Glade: http://www.florian-diesch.de/doc/python-und-glade/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Rounding up to the next 100
* michael.coll-ba...@verizonwireless.com: From: noydb If one has a floating number as a string, is there a spiffy way to round that string-number UP to the nearest 100? XstrNmbr = 3579.127893 -- would want to round that to 3600. What's wrong with round? round( XstrNmbr, -2 ) seems to do the trick. Or do you want to get rid of the decimal point as well? Perhaps completely irrelevant, but just in passing, round() changed semantics from 2.x to 3.x, in 3.x always returning int when called with just 1 argument: import sys sys.version '2.6.4 (r264:75708, Oct 26 2009, 08:23:19) [MSC v.1500 32 bit (Intel)]' print round.__doc__ round(number[, ndigits]) - floating point number Round a number to a given precision in decimal digits (default 0 digits). This always returns a floating point number. Precision may be negative. _ import sys sys.version '3.1.1 (r311:74483, Aug 17 2009, 17:02:12) [MSC v.1500 32 bit (Intel)]' print( round.__doc__ ) round(number[, ndigits]) - number Round a number to a given precision in decimal digits (default 0 digits). This returns an int when called with one argument, otherwise the same type as the number. ndigits may be negative. _ Might be useful to know regarding get rid of the decimal point: in 3.x round(x) does that, in 2.x it doesn't. Cheers, - Alf -- http://mail.python.org/mailman/listinfo/python-list
Re: Rounding up to the next 100
On Jan 21, 4:30 pm, michael.coll-ba...@verizonwireless.com wrote: From: noydb If one has a floating number as a string, is there a spiffy way to round that string-number UP to the nearest 100? XstrNmbr = 3579.127893 -- would want to round that to 3600. What's wrong with round? round( XstrNmbr, -2 ) seems to do the trick. Or do you want to get rid of the decimal point as well? The information contained in this message and any attachment may be proprietary, confidential, and privileged or subject to the work product doctrine and thus protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify me immediately by replying to this message and deleting it and all copies and backups thereof. Thank you. Thanks Arnaud! Michael - Nothing is wrong with round -- when I tried it initially, I was confused on the base -- seeing it from this example helped clear it up. -- http://mail.python.org/mailman/listinfo/python-list
Re: Rounding up to the next 100
Sorry, although what I really need is the string-number rounded UP every time. So if the number is 3890.32, it needs to go to 3900; if the number is 3811.345, it needs to go to 3900 also. So, Florian's answer works. -- http://mail.python.org/mailman/listinfo/python-list
RE: Rounding up to the next 100
From: Arnaud Delobelle XstrNmbr = 3579.127893 I meant XstrNmbr = 3579.127893 round(float(XstrNmbr), -2) 3600.0 Ah, then you will need to cast it first. XstrNmbr = '3579.127893' round(float(XstrNmbr) ,-2) 3600.0 The information contained in this message and any attachment may be proprietary, confidential, and privileged or subject to the work product doctrine and thus protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify me immediately by replying to this message and deleting it and all copies and backups thereof. Thank you. -- http://mail.python.org/mailman/listinfo/python-list
Re: Rounding up to the next 100
* noydb: Sorry, although what I really need is the string-number rounded UP every time. So if the number is 3890.32, it needs to go to 3900; if the number is 3811.345, it needs to go to 3900 also. So, Florian's answer works. You might also consider -100*(-3579.127893//100) :-) Which avoids the math.ceil but assumes the number is positive (or zero). Cheers hth., - Alf PS: Note that this trick doesn't work with most other common languages that I'm familiar with, since the round towards zero instead of down to minus infinity, but Python has more clean semantics in this regard. -- http://mail.python.org/mailman/listinfo/python-list
Re: Rounding up to the next 100
On Jan 21, 1:58 pm, noydb jenn.du...@gmail.com wrote: Sorry, although what I really need is the string-number rounded UP every time. So if the number is 3890.32, it needs to go to 3900; if the number is 3811.345, it needs to go to 3900 also. So, Florian's answer works. Another option is using math.ceil and math.floor. import math 100*math.ceil(1234.5678/100) 1300 100*math.floor(1234.5678/100) 1200 100*math.ceil(-1234.5678/100) -1200 100*math.floor(-1234.5678/100) -1300 casevh -- http://mail.python.org/mailman/listinfo/python-list
