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execute the action, depending on whether your data is a local DataFrame or remote table.\n\n```python\nfrom siuba import _\n\n_.cyl == 4\n```\n\n```\nOut[2]:\n█─==\n├─█─.\n│ ├─_\n│ └─'cyl'\n└─4\n```\n\nYou can also think of siu expressions as a shorthand for a lambda function.\n\n```python\nfrom siuba import _\n\n# lambda approach\nmtcars[lambda _: _.cyl == 4]\n\n# siu expression approach\nmtcars[_.cyl == 4]\n```\n\n```\nOut[3]: \n     mpg  cyl   disp   hp  drat     wt   qsec  vs  am  gear  carb\n2   22.8    4  108.0   93  3.85  2.320  18.61   1   1     4     1\n7   24.4    4  146.7   62  3.69  3.190  20.00   1   0     4     2\n..   ...  ...    ...  ...   ...    ...    ...  ..  ..   ...   ...\n27  30.4    4   95.1  113  3.77  1.513  16.90   1   1     5     2\n31  21.4    4  121.0  109  4.11  2.780  18.60   1   1     4     2\n\n[11 rows x 11 columns]\n```\n\nSee [siu expression section here](https://siuba.readthedocs.io/en/latest/intro.html#Concise-pandas-operations-with-siu-expressions-(_)).\n\n\n### Call trees\n\n### Tree visitors\n\n### Generic function dispatch\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmachow%2Fsiu","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmachow%2Fsiu","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmachow%2Fsiu/lists"}