我在 PC 上安装了 Ubuntu 20.04。然后我尝试开始并为python3安装pip。然而,似乎没有任何效果。这是我迄今为止尝试过的:
sudo apt install python3-pip
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这是我得到的错误:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package python3-pip is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'python3-pip' has no installation candidate
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我已经尝试了 Carlos Sanchez JR 提出的解决方案: How to install Python package installer PIP on Ubuntu 20.04 Linux
按照上面链接中给出的建议后,我在执行sudo apt update以下操作时遇到此错误:
Ign:1 …Run Code Online (Sandbox Code Playgroud) 我有一个 R data.frame,如下所示:
Gene Score
1 AAT2 15.40100
2 ACB1 5.11880
3 ACF2 15.04500
4 ADE16 3.04080
5 ADE17 0.28143
6 ADE4 19.79200
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但是我需要去掉尾随零才能得到:
Gene Score
1 AAT2 15.401
2 ACB1 5.1188
3 ACF2 15.045
4 ADE16 3.0408
5 ADE17 0.28143
6 ADE4 19.792
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基本上我试图将分数列中的位数设置为 5 位;我特别希望以这种方式查看数据。我怎样才能在 R 中做到这一点?