Questions tagged [pandas-styles]

[pandas-styles] is to be used on questions about Table Visualization using pandas built-in Styler object (df.style). Be sure to also include the tag [pandas].

Pandas has built-in support for creating styled tables which can be viewed in environments which support it like Jupyter Notebooks or exported to Excel, LaTeX, or HTML.

The result of table styles is a styled object which is no longer a DataFrame. Styling should be applied after all data processing has been completed as the resulting styled object will not have access to DataFrame data processing methods.


The documentation on Table Visualization covers the features offered.

Direct Links to Common Formatting Operations:

  1. Formatting the Display
    • Format the text display for the underlying values in the DataFrame.
  2. Table Styles
    • Use CSS to define styles for the table as a whole.
  3. Styler Functions
    • Use pandas logic operations to conditionally apply CSS styles to cells, rows, and/or columns in the DataFrame
  4. Tooltips and Captions
  5. Builtin Styles
    • Common styling operations that are included in the Styler
  6. Export to Excel
  7. Export to LaTeX
  8. Export to HTML

Limitations

  • DataFrame only (use Series.to_frame().style)
  • The index and columns do not need to be unique, but certain styling functions can only work with unique indexes.
  • No large repr, and construction performance isn’t great; although we have some HTML optimizations
  • You can only apply styles, you can’t insert new HTML entities, except via subclassing.
325 questions
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Pandas highlight rows based on index name

I have been struggling with how to style highlight pandas rows based on index names. I know how to highlight selected rows but when I have to highlight based on the index, the code is not working. Setup df = pd.DataFrame({'key': list('ABCD'),…
BhishanPoudel
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Formatting Datetime Index with Pandas DataFrame Styler, to only show time-part

I'm using the style property of Pandas DataFrames to create HTML tables for emailing. The issue I am having is that I have a datetime index that shows up as a datetime stamp when I'd like it to show as a date instead. I'm not interested in the time…
Alex Luis Arias
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format Date in pandas style render

I have a pandas dataframe with three columns of which the first is the Date. To produce a html output I use this: html_string = df.style.format({'second': "{:0,.0f}",third: "{:0,.0f}"}).set_table_styles(styles).render() how is it possible to…
y4nnick
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Highlight element based on boolean pandas df

I have 2 data frames with identical indices/columns: df = pd.DataFrame({'A':[5.5, 3, 0, 3, 1], 'B':[2, 1, 0.2, 4, 5], 'C':[3, 1, 3.5, 6, 0]}) df_bool = pd.DataFrame({'A':[0, 1, 0, 0, 1], …
Scott O
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Add header and text color in HTML table email body based on disk usage condition using Python

I am sending out an html table in an email body using python. The html table consists of disk usage and I need to add the header (first row) and text in red in the table when disk usage is above 80 percent. This is the code I'm using that works to…
ayuuk ja'ay
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Pandas conditional formatting not displaying background colors. (no errors)

I am using a jupyter notebook for this project. I am trying to add conditional formatting to my data frame. I would like to give the negative numbers a red background and the positive numbers a green background and if possible get rid of the row…
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Highlighting rows based on a condition

I have this random dataframe containing two columns with dates, I've been trying to highlight rows where the start date exists inside a list of condition dates. Here goes my failed attempt: import pandas as pd import numpy as np import datetime df…
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Formatting numbers after coloring a dataframe using Styler

I created a DataFrame in pandas for which I want to color the cells using a color index (low values red, high values green). I succeeded in doing so, however the coloring prevents me to format the cells. import pandas as pd df = pd.DataFrame({'a':…
gardangerous
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styling a pandas dataframe in python makes the float values have more zeros after the decimal point

this is my style code to make positive numbers appear green and negative numbers appear red if i just print out df it would show the numbers like this: 25.72,36.28,0.17 with the style however they are displayed like this: 25.7200000, 36.2800000,…
xreboorn
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Pandas Style: Draw borders over whole row including the multiindex

I'm using pandas style in a jupyter notebook to emphasize the borders between subgroups in this dataframe: (technically speaking: to draw borders at every changed multiindex but disregarding the lowest level) # some sample df with multiindex res =…
Lutz
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Why does pandas Styler 'to_excel' method not save percent formatting?

I am using the pandas Styler class to format some columns as a percent. When I write the output to excel, the columns are still showing up as floats. Why am I able to format and save colors properly, but not percents? import pandas as pd import…
Camper731
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Conditional formatting on Duplicates using pandas

I have a dataFrame with 6 columns. And I want to do conditional formatting on two columns of them. So my dataFrame looks like this And I want to highlight duplicate values from College and College_F2 columns. After which my dataframe will look like…
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How to set the default Styler for a pandas DataFrame's _repr_html method?

I've got a pandas DataFrame with a column that's a url, and I've written the following formatter to present it in my notebook as a link: def make_clickable(val): # target _blank to open new window return '
mistertim
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Pass Attributes (not functions) to python `pandas.DataFrame.style`

I have a pandas.DataFrame with values in it, say: df = pd.DataFrame(np.random.randn(5, 3), columns=['a', 'b', 'c']) In [160]: df Out[160]: a b c 0 -0.316527 -0.721590 1.812285 1 -1.704653 -0.415888 -0.294740 2 -1.126637 …
benjaminmgross
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How to use the .head() method of a pandas styler object?

I am working with a very big data set (18000 rows of data) which I only want to show a couple of rows such as 5 or 10 first rows. I was trying to use pandas.DataFrame().head(10) method but I am doing some styling and formatting and I receive the…
Arad Haselirad
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