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What does -1 mean in numpy reshape?
A numpy matrix can be reshaped into a vector using reshape function with parameter -1. But I don't know what -1 means here.
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Re-doing a reverted merge in Git
...t I wanted the branch to go back to e.g. git checkout 123466t7632723. Then converted to a branch git checkout my-new-branch. I then deleted the branch I didn't want any more. Of course this will only work if you are able to throw away the branch you messed up.
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jQuery - Add ID instead of Class
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Im doing this in coffeescript
booking_module_time_clock_convert_id = () ->
if $('.booking_module_time_clock').length
idnumber = 1
for a in $('.booking_module_time_clock')
elementID = $(a).attr("id")
$(a).attr( 'id', "#{elementID}_#{idnumber}" )
idnum...
What version of javac built my jar?
...nd: hexdump ~/bin/classes/P.class | head. Just look at the eighth byte and convert to decimal.
– Jarett Millard
Nov 14 '13 at 21:46
2
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Which is more correct: … OR …
...not normal browsers, but e.g. specialized HTML renderers, data extractors, converters, etc.) fail to handle <a><h1>..</h1></a> properly, since it has not been allowed in the specifications.
There is seldom a good reason to make a heading or text in a heading a link. (It’s...
Java logical operator short-circuiting
...he behaviour in a simple example:
public boolean longerThan(String input, int length) {
return input != null && input.length() > length;
}
public boolean longerThan(String input, int length) {
return input != null & input.length() > length;
}
The 2nd version uses the no...
Linq Syntax - Selecting multiple columns
...ct(x => new { x.EMAIL, x.ID });
AFAIK, the declarative LINQ syntax is converted to a method call chain similar to this when it is compiled.
UPDATE
If you want the entire object, then you just have to omit the call to Select(), i.e.
var employee = _db.EMPLOYEEs
.Where(x => x.EMAIL == g...
Pandas - Get first row value of a given column
...c('Btime')] = x
The latter method is a bit faster, because df.loc has to convert the row and column labels to
positional indices, so there is a little less conversion necessary if you use
df.iloc instead.
df['Btime'].iloc[0] = x works, but is not recommended:
Although this works, it is taking ...
Unicode (UTF-8) reading and writing to files in Python
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# -*- encoding: utf-8 -*-
# converting a unknown formatting file in utf-8
import codecs
import commands
file_location = "jumper.sub"
file_encoding = commands.getoutput('file -b --mime-encoding %s' % file_location)
file_stream = codecs.open(file_locat...
Javascript/DOM: How to remove all events of a DOM object?
...u tried this with more than one div element? the node var will actually be converted to a string, e.g. '[object HTMLDivElement]' which means you end up adding everything to the same node.
– cstruter
Feb 29 '12 at 16:18
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