大约有 40,975 项符合查询结果（耗时：0.0445秒） [XML]
How to get the path of the batch script in Windows?
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edited Dec 3 '18 at 10:36
jurl
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answered Sep...
Overlaying histograms with ggplot2 in R
...'s a concrete example with some output:
dat <- data.frame(xx = c(runif(100,20,50),runif(100,40,80),runif(100,0,30)),yy = rep(letters[1:3],each = 100))
ggplot(dat,aes(x=xx)) +
geom_histogram(data=subset(dat,yy == 'a'),fill = "red", alpha = 0.2) +
geom_histogram(data=subset(dat,yy == 'b'...
Executing JavaScript without a browser?
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edited May 23 '17 at 12:10
Community♦
111 silver badge
answered May 31 '10 at 5:12
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google oauth2 redirect_uri with several parameters
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answered Sep 24 '14 at 10:28
KiranKiran
94322 gold badges1010 silver badges2525 bronze badges
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How to add an extra column to a NumPy array
...olution and faster to boot is to do the following:
import numpy as np
N = 10
a = np.random.rand(N,N)
b = np.zeros((N,N+1))
b[:,:-1] = a
And timings:
In [23]: N = 10
In [24]: a = np.random.rand(N,N)
In [25]: %timeit b = np.hstack((a,np.zeros((a.shape[0],1))))
10000 loops, best of 3: 19.6 us per...
Extract a regular expression match
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edited Jun 10 '10 at 1:09
answered Feb 3 '10 at 14:46
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Typescript: difference between String and string
...ly safe to use either as the TypeScript types are stripped out to give you 100% compatible JavaScript (in either ES3 or ES5 flavours, and in version 1 ES6 flavour). I would recommend using the string type and a literal initialisation: var s: string = "My String";.
– Fenton
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Bash Templating: How to build configuration files from templates with Bash?
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answered May 26 '10 at 19:35
ZyXZyX
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Age from birthdate in python
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Danny W. AdairDanny W. Adair
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mysql Foreign key constraint is incorrectly formed error
...eign key column was SMALLINT(5) UNSIGNED and the referenced column was INT(10) UNSIGNED. Once I made them both the same exact type, the foreign key creation worked perfectly.
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