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Alexander Hess 2024-04-08 22:13:31 +02:00
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10
04_iteration/03_content.ipynb
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@ -8,7 +8,7 @@
}
},
"source": [
"**Note**: Click on \"*Kernel*\" > \"*Restart Kernel and Clear All Outputs*\" in [JupyterLab](https://jupyterlab.readthedocs.io/en/stable/) *before* reading this notebook to reset its output. If you cannot run this file on your machine, you may want to open it [in the cloud <img height=\"12\" style=\"display: inline-block\" src=\"../static/link/to_mb.png\">](https://mybinder.org/v2/gh/webartifex/intro-to-python/develop?urlpath=lab/tree/04_iteration/03_content.ipynb)."
"**Note**: Click on \"*Kernel*\" > \"*Restart Kernel and Clear All Outputs*\" in [JupyterLab](https://jupyterlab.readthedocs.io/en/stable/) *before* reading this notebook to reset its output. If you cannot run this file on your machine, you may want to open it [in the cloud <img height=\"12\" style=\"display: inline-block\" src=\"../static/link/to_mb.png\">](https://mybinder.org/v2/gh/webartifex/intro-to-python/main?urlpath=lab/tree/04_iteration/03_content.ipynb)."
]
},
{
@ -30,7 +30,7 @@
}
},
"source": [
"While what we learned about the `for` and `while` statements in the [second part <img height=\"12\" style=\"display: inline-block\" src=\"../static/link/to_nb.png\">](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/develop/04_iteration/02_content.ipynb) of this chapter suffices to translate any iterative algorithm into code, both come with some syntactic sugar to make life easier for the developer. This last part of the chapter shows how we can further customize the looping logic and introduces as \"trick\" for situations where we cannot come up with a stopping criterion in a `while`-loop."
"While what we learned about the `for` and `while` statements in the [second part <img height=\"12\" style=\"display: inline-block\" src=\"../static/link/to_nb.png\">](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/main/04_iteration/02_content.ipynb) of this chapter suffices to translate any iterative algorithm into code, both come with some syntactic sugar to make life easier for the developer. This last part of the chapter shows how we can further customize the looping logic and introduces as \"trick\" for situations where we cannot come up with a stopping criterion in a `while`-loop."
]
},
{
@ -352,7 +352,7 @@
}
},
"source": [
"Often, we process some iterable with numeric data, for example, a list of `numbers` as in this book's introductory example in [Chapter 1 <img height=\"12\" style=\"display: inline-block\" src=\"../static/link/to_nb.png\">](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/develop/01_elements/00_content.ipynb#Example:-Averaging-all-even-Numbers-in-a-List) or, more realistically, data from a CSV file with many rows and columns.\n",
"Often, we process some iterable with numeric data, for example, a list of `numbers` as in this book's introductory example in [Chapter 1 <img height=\"12\" style=\"display: inline-block\" src=\"../static/link/to_nb.png\">](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/main/01_elements/00_content.ipynb#Example:-Averaging-all-even-Numbers-in-a-List) or, more realistically, data from a CSV file with many rows and columns.\n",
"\n",
"Processing numeric data usually comes down to operations that may be grouped into one of the following three categories:\n",
"\n",
@ -360,7 +360,7 @@
"- **filtering**: throw away individual numbers (e.g., statistical outliers in a sample)\n",
"- **reducing**: collect individual numbers into summary statistics\n",
"\n",
"We study this **map-filter-reduce** paradigm extensively in [Chapter 8 <img height=\"12\" style=\"display: inline-block\" src=\"../static/link/to_nb.png\">](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/develop/08_mfr/00_content.ipynb) after introducing more advanced data types that are needed to work with \"big\" data.\n",
"We study this **map-filter-reduce** paradigm extensively in [Chapter 8 <img height=\"12\" style=\"display: inline-block\" src=\"../static/link/to_nb.png\">](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/main/08_mfr/00_content.ipynb) after introducing more advanced data types that are needed to work with \"big\" data.\n",
"\n",
"Here, we focus on *filtering out* some numbers in a `for`-loop."
]
@ -535,7 +535,7 @@
}
},
"source": [
"With already three levels of indentation, less horizontal space is available for the actual code block. Of course, one could flatten the two `if` statements with the logical `and` operator, as shown in [Chapter 3 <img height=\"12\" style=\"display: inline-block\" src=\"../static/link/to_nb.png\">](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/develop/03_conditionals/00_content.ipynb#The-if-Statement). Then, however, we trade off horizontal space against a more \"complex\" `if` logic, and this is *not* a real improvement."
"With already three levels of indentation, less horizontal space is available for the actual code block. Of course, one could flatten the two `if` statements with the logical `and` operator, as shown in [Chapter 3 <img height=\"12\" style=\"display: inline-block\" src=\"../static/link/to_nb.png\">](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/main/03_conditionals/00_content.ipynb#The-if-Statement). Then, however, we trade off horizontal space against a more \"complex\" `if` logic, and this is *not* a real improvement."
]
},
{