[数据分析]Pandas

1 前置知识

• Pandas支持的数据结构
  • Series 类似一维数组
  • DataFrame 表格型数据结构
• 常用的数据分析开源库
  • Pandas、Numpy、Matplolib、Seaborn、Sklearn
• 虚拟环境创建

(base) C:\Users\ning>conda env list
# conda environments:
#
base                  *  D:\ProgramData\anaconda3


(base) C:\Users\ning>conda create -n llm python=3.10
Channels:
 - defaults
Platform: win-64
Collecting package metadata (repodata.json): done
Solving environment: done

## Package Plan ##

  environment location: C:\Users\ning\.conda\envs\llm

  added / updated specs:
    - python=3.10


The following packages will be downloaded:

    package                    |            build
    ---------------------------|-----------------
    bzip2-1.0.8                |       h2bbff1b_6          90 KB
    libffi-3.4.4               |       hd77b12b_1         122 KB
    openssl-3.0.14             |       h827c3e9_0         7.8 MB
    pip-24.2                   |  py310haa95532_0         2.5 MB
    python-3.10.14             |       he1021f5_1        15.9 MB
    setuptools-72.1.0          |  py310haa95532_0         2.5 MB
    sqlite-3.45.3              |       h2bbff1b_0         973 KB
    tk-8.6.14                  |       h0416ee5_0         3.5 MB
    tzdata-2024a               |       h04d1e81_0         116 KB
    vc-14.40                   |       h2eaa2aa_0          10 KB
    vs2015_runtime-14.40.33807 |       h98bb1dd_0         1.3 MB
    wheel-0.43.0               |  py310haa95532_0         136 KB
    xz-5.4.6                   |       h8cc25b3_1         609 KB
    zlib-1.2.13                |       h8cc25b3_1         131 KB
    ------------------------------------------------------------
                                           Total:        35.6 MB

The following NEW packages will be INSTALLED:

  bzip2              pkgs/main/win-64::bzip2-1.0.8-h2bbff1b_6
  ca-certificates    pkgs/main/win-64::ca-certificates-2024.7.2-haa95532_0
  libffi             pkgs/main/win-64::libffi-3.4.4-hd77b12b_1
  openssl            pkgs/main/win-64::openssl-3.0.14-h827c3e9_0
  pip                pkgs/main/win-64::pip-24.2-py310haa95532_0
  python             pkgs/main/win-64::python-3.10.14-he1021f5_1
  setuptools         pkgs/main/win-64::setuptools-72.1.0-py310haa95532_0
  sqlite             pkgs/main/win-64::sqlite-3.45.3-h2bbff1b_0
  tk                 pkgs/main/win-64::tk-8.6.14-h0416ee5_0
  tzdata             pkgs/main/noarch::tzdata-2024a-h04d1e81_0
  vc                 pkgs/main/win-64::vc-14.40-h2eaa2aa_0
  vs2015_runtime     pkgs/main/win-64::vs2015_runtime-14.40.33807-h98bb1dd_0
  wheel              pkgs/main/win-64::wheel-0.43.0-py310haa95532_0
  xz                 pkgs/main/win-64::xz-5.4.6-h8cc25b3_1
  zlib               pkgs/main/win-64::zlib-1.2.13-h8cc25b3_1


Proceed ([y]/n)? y


Downloading and Extracting Packages:

Preparing transaction: done
Verifying transaction: done
Executing transaction: done
#
# To activate this environment, use
#
#     $ conda activate llm
#
# To deactivate an active environment, use
#
#     $ conda deactivate


(base) C:\Users\ning>conda activate llm

(llm) C:\Users\ning>conda env list
# conda environments:
#
llm                   *  C:\Users\ning\.conda\envs\llm
base                     D:\ProgramData\anaconda3


(llm) C:\Users\ning>pip list show
Package    Version
---------- -------
pip        24.2
setuptools 72.1.0
wheel      0.43.0

(llm) C:\Users\ning>conda deactivate llm

ArgumentError: deactivate does not accept arguments
remainder_args: ['llm']



(llm) C:\Users\ning>conda deactivate llm

ArgumentError: deactivate does not accept arguments
remainder_args: ['llm']



(llm) C:\Users\ning>conda activate base

(base) C:\Users\ning>conda remove -n llm

CondaValueError: no package names supplied,
       try "conda remove -h" for more details


(base) C:\Users\ning>conda remove -n llm --all

Remove all packages in environment C:\Users\ning\.conda\envs\llm:


## Package Plan ##

  environment location: C:\Users\ning\.conda\envs\llm


The following packages will be REMOVED:

  bzip2-1.0.8-h2bbff1b_6
  ca-certificates-2024.7.2-haa95532_0
  libffi-3.4.4-hd77b12b_1
  openssl-3.0.14-h827c3e9_0
  pip-24.2-py310haa95532_0
  python-3.10.14-he1021f5_1
  setuptools-72.1.0-py310haa95532_0
  sqlite-3.45.3-h2bbff1b_0
  tk-8.6.14-h0416ee5_0
  tzdata-2024a-h04d1e81_0
  vc-14.40-h2eaa2aa_0
  vs2015_runtime-14.40.33807-h98bb1dd_0
  wheel-0.43.0-py310haa95532_0
  xz-5.4.6-h8cc25b3_1
  zlib-1.2.13-h8cc25b3_1


Proceed ([y]/n)? y

Preparing transaction: done
Verifying