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why is plotting with Matplotlib so slow?
... 'y-', 'm-', 'k-', 'c-']
lines = [ax.plot(x, y, style)[0] for ax, style in zip(axes, styles)]
fig.show()
tstart = time.time()
for i in xrange(1, 20):
for j, line in enumerate(lines, start=1):
line.set_ydata(np.sin(j*x + i/10.0))
fig.canvas.draw()
print 'FPS:' , 20/(time.time()-tst...
java.nio.file.Path for a classpath resource
...e), or having to open and thus safely close the filesystem ourselves (like zip/jar files).
Therefore, the solution above encapsulates the actual action in an interface, handles both cases, safely closing afterwards in the second case, and works from Java 7 to Java 10. It probes whether there is a...
Plotting a list of (x, y) coordinates in python matplotlib
...lt.show()
will produce:
To unpack your data from pairs into lists use zip:
x, y = zip(*li)
So, the one-liner:
plt.scatter(*zip(*li))
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Utilizing multi core for tar+gzip/bzip compression/decompression
...normally compress using tar zcvf and decompress using tar zxvf (using gzip due to habit).
6 Answers
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WheelView 拓展：滚轮选择框扩展，滚轮日历选择框和旋转日历扩展 · App In...
...换 目录 在线 客服 扫码添加客服咨询 我要 分享 扫码分享到朋友圈 顶部 var qrcode = new QRCode("qrcode", { text: window.location.href + "?f=share", ...
ImageConvertor 扩展：免费图像转换器，支持JPG/PNG/WEBP格式转换和图像处...
...换 目录 在线 客服 扫码添加客服咨询 我要 分享 扫码分享到朋友圈 顶部 var qrcode = new QRCode("qrcode", { text: window.location.href + "?f=share", ...
Finding the index of an item in a list
...ch is pretty much the same approach as enumerate):
from itertools import izip as zip, count # izip for maximum efficiency
[i for i, j in zip(count(), ['foo', 'bar', 'baz']) if j == 'bar']
This is more efficient for larger lists than using enumerate():
$ python -m timeit -s "from itertools import...
How to POST JSON Data With PHP cURL?
...me" => "Lastnameson","phone" => "555-1212", "province" => "ON", "zip" => "123 ABC" ) );
$postdata = json_encode($data);
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, ...
How to perform element-wise multiplication of two lists?
...
Use a list comprehension mixed with zip():.
[a*b for a,b in zip(lista,listb)]
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FloatingActionButton 扩展：悬浮操作按钮扩展，可自定义颜色、大小、位置...
...果：支持按压时的视觉反馈效果
动态生成：支持通过代码动态生成多个按钮
临时隐藏：支持临时隐藏按钮功能
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Logo 和界面
积木示例
功能示例
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