2.1. Jupyter¶
The Jupyter Notebook is an open-source web application that allows you to create and share documents that contain live code, equations, visualizations and narrative text. Uses include: data cleaning and transformation, numerical simulation, statistical modeling, data visualization, machine learning, and much more.
2.1.1. Install¶
$ pip install jupyter
2.1.2. Run¶
$ jupyter-notebook
[I 08:58:24.417 NotebookApp] Serving notebooks from local directory: /Users/catherine
[I 08:58:24.417 NotebookApp] 0 active kernels
[I 08:58:24.417 NotebookApp] The Jupyter Notebook is running at: http://localhost:8888/
[I 08:58:24.417 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
$ jupyter-notebook filename.ipynb
2.1.3. Using¶
Add code
Run code
Modify code and run
Autocomplete
Cell type (Markdown, LaTeX, Code)
2.1.4. Shortcut keys¶
Indent:
Tab
Shift + Tab
Comment Code:
Ctrl + /
Run:
Shift+Enter
2.1.5. Cells¶
Insert Below/Above Cells
Add, Delete Cells
Cut, Copy, Paste Cells
Move Up/Down Cells
Merge, Split Cells
2.1.6. Run¶
Run Cell
Shift-EnterRun All (above/below)
Restart Kernel
Restart Kernel and Clear Output
Clear Output
2.1.7. Magic commands¶
%magic%- Line Magics%%- Cell magic%run- Run the named file inside IPython as a program.!pip freezeFull list https://ipython.readthedocs.io/en/stable/interactive/magics.html#
2.1.8. Kernels¶
2.1.9. Functions¶
Checkpoints
Download
Trust Notebook
Close and Halt
2.1.10. Performance and profiling¶
%%timeit%%timeit -n 1000 -r 7
2.1.11. Markdown¶
Unorganized lists:
* first element
* second element
* third element
- first element
- second element
- third element
Organized lists:
1. first element
1. second element
1. third element
Headers:
# Header level 1
## Header level 2
### Header level 3
#### Header level 4
##### Header level 5
###### Header level 6
Formatting:
*italic*
**bold**
Code inline:
`class`
Code blocks:
```python
name = 'José Jiménez'
print(f'My name... {name}')
```
2.1.12. Tables¶
| id | firstname | lastname | agency |
|----|:-----------|:---------:|----------:|
| 1 | José | Jiménez | NASA |
| 2 | Иван | Иванович | Roscosmos |
| 3 | Mark | Watney | NASA |
| 4 | Alex | Vogel | NASA |
2.1.13. LaTeX¶
%%latex
%%latex
$$c = \sqrt{a^2 + b^2}$$
%%latex
$$\int_{x=0}^{x=\infty} x^\pi dx$$
%%latex
\begin{equation}
H← 60 + \frac{30(B-R)}{Vmax-Vmin} , if Vmax = G
\end{equation}
from IPython.display import Latex
Latex(r'F(k) = \int_{-\infty}^{\infty} f(x) e^{2\pi i k} dx')
Latex(r'$\lim_{x \to 0} (1+x)^{1/x} = e$')
2.1.14. Matplotlib charts¶
x = np.linspace(-5, 5, 100) # vector z 100 równo odległymi wartościami od -5 do 5
y = np.sin(X) # sinus wszystkich wartości x
plt.plot(x, y) # wykres liniowy
%matplotlib inline
import math
import random
from matplotlib import pyplot as plt
x1 = [x*0.01 for x in range(0,628)]
y1 = [math.sin(x*0.01)+random.gauss(0, 0.1) for x in range(0,628)]
plt.plot(x1, y1)
x2 = [x*0.5 for x in range(0,round(63/5))]
y2 = [math.cos(x*0.5) for x in range(0,round(63/5))]
plt.plot(x2, y2, 'o-')
plt.show() # doctest: +SKIP
2.1.15. HTML¶
from IPython.display import HTML
HTML("We can <i>generate</i> <code>html</code> code <b>directly</b>!")
2.1.16. JavaScript¶
from IPython.display import Javascript
Javascript("alert('It is JavaScript!')")
2.1.17. Image¶
from IPython.display import Image
Image(url="https://python3.info/_static/favicon.png")
2.1.18. YouTube¶
from IPython.display import YouTubeVideo
YouTubeVideo("h8mDUc5L0XM")
2.1.19. Execute terminal commands¶
!!pwd!ls
dirs = !ls
for file in dirs:
if file.find("1_") >= 0:
print(file)
2.1.20. Output to different formats¶
File -> Download as
Notebook (.ipynb)
Python (.py)
HTML (.html)
Reveal.js Slides (.html)
Markdown (.md)
reST (.rst)
LaTeX (.lex)
PDF via LaTeX (.pdf)
2.1.21. Generate HTML¶
File -> Save and Checkpoint
File -> Download as -> HTML (.html)
2.1.22. Slides¶
View -> Cell Toolbar -> Slideshow
Select slides, sub-slides and speaker notes
File -> Save and Checkpoint
File -> Download as -> Reveal.js slides (.slides.html)
2.1.23. Github pages with Jupyter Slides¶
$ git submodule add https://github.com/hakimel/reveal.js.git reveal.js
$ jupyter nbconvert --to slides index.ipynb --reveal-prefix=reveal.js
$ jupyter nbconvert --to slides index.ipynb --reveal-prefix=reveal.js \
--SlidesExporter.reveal_theme=serif \
--SlidesExporter.reveal_scroll=True \
--SlidesExporter.reveal_transition=none
2.1.24. Assignments¶
"""
* Assignment: Jupyter First
* Complexity: easy
* Lines of code: 10 lines
* Time: 13 min
English:
1. Create jupyter notebook named `jupyter_first.ipynb`
2. Add text describing next commands
3. Add three different 'code cell'
4. Run code cell with result of all above
5. Add code cell, which will show time of execution of instruction
6. Add Code Cell, which will display plot of `sin()` function inplace
7. Run doctests - all must pass
Polish:
1. Stwórz notebook jupyter o nazwie `jupyter_first.ipynb`
2. dodaj tekst opisujący następne polecenia
3. dodaj trzy różne 'code cell'
4. uruchom code cell z wynikiem wszystkich powyżej
5. dodaj code cell, który pokaże czas wykonywania instrukcji
6. dodaj Code Cell, który wyświetli wykres funkcji `sin()` inplace
7. Uruchom doctesty - wszystkie muszą się powieść
"""
"""
* Assignment: Jupyter Slides
* Complexity: easy
* Lines of code: 1 lines
* Time: 5 min
English:
1. Convert previous script to slides and run presentation in browser
2. Run doctests - all must pass
Polish:
1. Poprzedni skrypt przekonwertuj na slajdy i uruchom prezentację w przeglądarce
2. Uruchom doctesty - wszystkie muszą się powieść
"""