serhii.net

A typo in a keybinding randomly led me to the graph view in Obsidian, never thought about it - but now apparently I have a lot of notes and it’s quite pretty!

I wanted to remove the #zc tag from graph view to make it clearer (since ALL notes have it basically.)

(177) How to hide tags, but keep notes with them in graph : ObsidianMD mentioned a way to do just that, though I’m not sure I understand it:

-(-path:folder (#tag1 OR #tag2 OR #tag3))

For me that’s:

-(-path:garden/it (#zc OR #zc/it))

# Display all columns and rows:
pd.set_option('display.max_columns', None)
pd.set_option('display.max_rows', None)
# Don't truncate values
pd.set_option('display.max_colwidth', None)

This of course works:

with pd.option_context('display.max_colwidth', None):
  display(df)

Make cells 100% wide in Jupyter:

from IPython.core.display import display, HTML 
display(HTML("<style>.container { width:100% !important; }</style>"))

And https://stackoverflow.com/a/51593236 has this function remarkably similar to the old one I’ve had, except that I changed print->display:

def print_full(x):
    pd.set_option('display.max_rows', None)
    pd.set_option('display.max_columns', None)
    pd.set_option('display.width', 2000)
    pd.set_option('display.float_format', '{:20,.2f}'.format)
    pd.set_option('display.max_colwidth', None)
    #print(x)
	display(x)
    pd.reset_option('display.max_rows')
    pd.reset_option('display.max_columns')
    pd.reset_option('display.width')
    pd.reset_option('display.float_format')
    pd.reset_option('display.max_colwidth')

Pandas convert column to categorial

pd.row_name.astype('category')

Pandas select numeric columns¹:

ds.select_dtypes(include=[np.number])

Pandas divide columns by other column²:

(ds.T / ds.col2.T).T

python - Divide multiple columns by another column in pandas - Stack Overflow

3D plotting in matplotlib: Three-Dimensional Plotting in Matplotlib | Python Data Science Handbook & the official docu: 3D plotting — Matplotlib 3.7.1 documentation

Color palettes

seaborn.color_palette — seaborn 0.12.2 documentation:

sns.color_palette("flare")

# to reverse
sns.color_palette("flare_r")

# to uniform (=not categorical)

sns.color_palette("flare_r",as_cmap=True)

Markers

Properties of Mark objects — seaborn 0.12.2 documentation & matplotlib.markers — Matplotlib 3.7.1 documentation

Really nice relevant tutorial: How to handle time series data with ease — pandas 2.1.0.dev0+658.gc9de03effb documentation

Make pd.Timedelta plottable

sns.boxplot(data=s_dsm_conv, y='Dauer', x='Parameter')

> TypeError: Neither the `x` nor `y` variable appears to be numeric.

pd.TimeDelta is indeed not numeric, but can be made one through

s_dsm_conv['Dauer'] = s_dsm_conv['Dauer'].astype('timedelta64[h]')

Pandas filter by deltas

# Gaps longer than one day
real_gaps=gaps[gaps>pd.Timedelta(1,"d")]

[Code]-Drop Rows with Non-Numeric Entries in a Column (Python)-pandas shows one way to do this using pd.to_numeric()¹:

df['Gm#'] = pd.to_numeric(df['Gm#'], errors='coerce')
df = df.dropna(subset=['Gm#'])

Sorting

Select the lines to sort, then :sort.

Diffing

When you’re looking at two files in two separate splits, :diffthis is the magic command.

Neat for manually diffing parts of jsons.

Previously: 230313-1423 json diff with jq

Move inside words separated by _

Wanted w/b in python not to skip over underscores, that is consider underscores word separators.

set iskeyword? shows the current/default value:

• in vim: iskeyword=@,48-57,,_,192-255
• in ideavim: iskeyword=@,48-57,_

Not digging to deep, removing _ gives me the wanted behaviour. Python got even easier now. (Keeping the ~/.vimrc as-is though).

EDIT: OK, but this breaks <C-*> and I can’t quickly jump between functions. Sad :( Rolling back…

Vim/Ideavim camelcase motion

• intellij idea - IdeaVim move between words in camel case word - Stack Overflow

IdeaVim supports camel case motions! Of course it does: ]w, [w, ]b, [b

I’m happy for my custom keyboard layout where brackets are REALLY close and usable. I love this.

But for pycharm, remapped them, giving me what I want:

 map w [w
 map e ]w
 map b [b 

When using black, this cryptic message

error: cannot format /experiment.py: cannot use --safe with this file; failed to parse source file.

happens to me only when I have a stray trailing comma in my imports:

from typing import Optional, Tuple,

• Sup/Subscripts: a_{multiplechars}
• Modulo: as-is |modulo|
• Parentheses: Brackets and Parentheses - Overleaf, Online-LaTeX-Editor List of LaTeX mathematical symbols - OeisWiki

Problem: jupyter notebooks being shown as text on my website.

Adding the following to a .htaccess file prevents files being “shown” in the browser, as opposed to downloaded¹:

<FilesMatch "\.(?i:doc|odf|pdf|rtf|txt|ipynb)$">
  Header set Content-Disposition attachment
</FilesMatch>

Also ² that there’s a HTML syntax for that in links now!

<a href="./my_file.txt" download>