大约有 44,000 项符合查询结果（耗时：0.0593秒） [XML]
Replacing blank values (white space) with NaN in pandas
...lso changed + to * to include the empty string "" in the list of things to convert to NaN
– Master Yogurt
Nov 18 '16 at 17:36
...
Converting string into datetime
... tm_wday=2, tm_yday=152, tm_isdst=-1)
timestamp = time.mktime(my_time)
# convert time object to datetime
from datetime import datetime
my_datetime = datetime.fromtimestamp(timestamp)
# convert time object to date
from datetime import date
my_date = date.fromtimestamp(timestamp)
...
How do I convert NSMutableArray to NSArray?
How do I convert NSMutableArray to NSArray in objective-c ?
9 Answers
9
...
Convert RGB to RGBA over white
I have a hex color, e.g. #F4F8FB (or rgb(244, 248, 251) ) that I want converted into an as-transparent-as-possible rgba color (when displayed over white). Make sense? I'm looking for an algorithm, or at least idea of an algorithm for how to do so.
...
How to convert a factor to integer\numeric without loss of information?
When I convert a factor to a numeric or integer, I get the underlying level codes, not the values as numbers.
10 Answers
...
StringBuilder vs String concatenation in toString() in Java
... StringBuilder optimization. I was using a decompiler and, some how, it is converting back to concat. +1
– bruno conde
Oct 7 '09 at 16:30
81
...
How do I convert an integer to binary in JavaScript?
...the function in the answer expect a integer... So, if input is a text just convert it to integer, use the fake bitshift and it's done
– fernandosavio
May 30 '15 at 18:30
...
MySQL and GROUP_CONCAT() maximum length
I'm using GROUP_CONCAT() in a MySQL query to convert multiple rows into a single string.
However, the maximum length of the result of this function is 1024 characters.
...
Convert DOS line endings to Linux line endings in Vim
...Alternately, if you move files back and forth a lot, you might not want to convert them, but rather to do :set ff=dos, so Vim will know it's a DOS file and use DOS conventions for line endings.
share
|
...
Convert a String representation of a Dictionary to a dictionary?
How can I convert the str representation of a dict , such as the following string, into a dict ?
9 Answers
...