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Draw a perfect circle from user's touch

... +500 Sometimes it is really useful to spend some time reinventing the wheel. As you might have already noticed there are a lot of framewor...
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Searching for UUIDs in text with regex

...e five equivalent string representations for a GUID: "ca761232ed4211cebacd00aa0057b223" "CA761232-ED42-11CE-BACD-00AA0057B223" "{CA761232-ED42-11CE-BACD-00AA0057B223}" "(CA761232-ED42-11CE-BACD-00AA0057B223)" "{0xCA761232, 0xED42, 0x11CE, {0xBA, 0xCD, 0x00, 0xAA, 0x00, 0x57, 0xB2, 0x23}}" ...
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不同品牌的防火墙组成高可靠性集群 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...设备 ASG 425 支持OSPF BGP PIM路由协议 第二台设备SSG 520 支持BGP OSPF PIM RIP 路由协议 第一种方法 说明:两个防火墙属于不同品牌HA 等技术想都不用想了,想通过VRRP实现主备切换, juniper 我只发现了NSRP 的选项 Astarto 根本...
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Normalize data in pandas

... In [92]: df Out[92]: a b c d A -0.488816 0.863769 4.325608 -4.721202 B -11.937097 2.993993 -12.916784 -1.086236 C -5.569493 4.672679 -2.168464 -9.315900 D 8.892368 0.932785 4.535396 0.598124 In [93]: df_norm = (df - df.mean()) / (df.max() - df...
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How to make link look like a button?

... 107 Using CSS: .button { display: block; width: 115px; height: 25px; backg...
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linux下iptables配置详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...pt source destination Chain RH-Firewall-1-INPUT (0 references) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icm...
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How to change the order of DataFrame columns?

...ged as needed. This is what you have now: In [6]: df Out[6]: 0 1 2 3 4 mean 0 0.445598 0.173835 0.343415 0.682252 0.582616 0.445543 1 0.881592 0.696942 0.702232 0.696724 0.373551 0.670208 2 0.662527 0.955193 0.131016 0.609548 0.8046...
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Linear Regression and group by in R

...ual time series with one field for year (22 years) and another for state (50 states). I want to fit a regression for each state so that at the end I have a vector of lm responses. I can imagine doing for loop for each state then doing the regression inside the loop and adding the results of each reg...
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Find row where values for column is maximal in a pandas DataFrame

...,3),columns=['A','B','C']) >>> df A B C 0 1.232853 -1.979459 -0.573626 1 0.140767 0.394940 1.068890 2 0.742023 1.343977 -0.579745 3 2.125299 -0.649328 -0.211692 4 -0.187253 1.908618 -1.862934 >>> df['A'].argmax() 3 >>> df['B'].argmax() 4 &...
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Get statistics for each group (such as count, mean, etc) using pandas GroupBy?

... counts – alvitawa Jun 24 '19 at 16:04 add a comment  |  ...