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How to create emptm>y m> data frame with column names specified in R? [duplicate]
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@pssgum>y m> because of the default behaviour of data.frame, m>and m> specificallm>y m> the default value for the argument stringsAsFactors = T.
– Antoine Lizée
Oct 10 '13 at 6:20
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tinm>y m>grad：不到1000行代码的深度学习框架，天才黑客开源GitHub 2.3k+ stars...
...nm>y m>BobNet()
optim = optim.SGD([model.l1, model.l2], lr=0.001)
# ... m>and m> complete like pm>y m>torch, with (x,m>y m>) data
out = model.forward(x)
loss = out.mul(m>y m>).mean()
loss.backward()
optim.step()
另外tinm>y m>grad也支持GPU：
from tinm>y m>grad.tensor import Tensor(Tensor.ones(4,4).cuda() ...
Jinja2 template variable if None Object set a default value
...ld downvote this, since it's not a good answer to the original question... m>and m> m>y m>et at the same time, knowing about default is exactlm>y m> what I needed for mm>y m> particular case, so... simplm>y m> not voting. (An edit to this answer might well earn it an upvote, except that I think it's likelm>y m> hard to applm>y m> de...
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...系统任务。存储引擎层有很多种，mm>y m>sql提供了存储引擎的插件式结构，支持多种存储引擎，用的最广泛的是innodb和mm>y m>isamin；inodb主要面向OLTP方面的应用，支持事务处理，mm>y m>isam不支持事务，表锁，对OLAP操作速度快。
以下主要针对in...
Are there anm>y m> downsides to passing structs bm>y m> value in C, rather than passing a pointer?
...ot of C programming is for embedded sm>y m>stems, where memorm>y m> is at a premium, m>and m> stack sizes mam>y m> be measured in KB or even Bm>y m>tes... If m>y m>ou're passing or returning structs bm>y m> value, copies of those structs will get placed on the stack, potentiallm>y m> causing the situation that this site is named after...
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jsonifm>y m> a SQLAlchemm>y m> result set in Flask [duplicate]
...m>y m>.
"""
return [ item.serialize for item in self.manm>y m>2manm>y m>]
m>And m> now for views I can just do:
return jsonifm>y m>(json_list=[i.serialize for i in qrm>y m>result.all()])
Hope this helps ;)
[Edit 2019]:
In case m>y m>ou have more complex objects or circular references, use a librarm>y m> like marshmallo...
Get m>and m> set position with jQuerm>y m> .offset()
How to get m>and m> set the position of an element with the jQuerm>y m> .offset method?
5 Answers
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'str' object does not support item assignment in Pm>y m>thon
I would like to read some characters from a string m>and m> put it into other string (Like we do in C).
7 Answers
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How do m>y m>ou change the size of figures drawn with matplotlib?
...figsize=(8, 6), ...) to change it's size etc. If m>y m>ou're using pm>y m>plot/pm>y m>lab m>and m> show() to create a popup window, m>y m>ou need to call figure(num=1,...) before m>y m>ou plot anm>y m>thing - pm>y m>plot/pm>y m>lab creates a figure as soon as m>y m>ou draw something, m>and m> the size of the popup appears to be fixed at this point.
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How to parse a JSON string into JsonNode in Jackson?
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Is it possible to take the JsonNode, modifm>y m> it a bit, m>and m> then call mapper.readValue(node, class); m>and m> get out a class?
– portforwardpodcast
Jul 26 '12 at 3:56
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