ALL software version info (bokeh, python, notebook, OS, browser, any other relevant packages)

python: 3.7.7
bokeh: 2.2.1
jupyter_core: 4.5.0
jupyter_client: 5.3.3
Chrome 85
macOS Catalina 10.15.7

Description of expected behavior and the observed behavior

In CSS, identifiers cannot start with a digit, two hyphens, or a hyphen followed by a digit (see [reference](https://www.

I suggest either adding a short code piece to use the rename() function to change the column "genus" to "genera" (thus alerting the learners to their relationship here, while adding a new function) or changing the column name in the original dataset. Otherwise, I've found that using the correct plural for genus confuses learners who are not biologists. Although it's the R ecology lesson and one

Hi,

Firstly, thank you for your work on Chart-Fx.

We are currently building an application using the library to display multiple huge datasets.
The library works well for 5 to 10 million points, however our clients would like to display even larger datas, going up to 50 to 100 million points. While it is possible to display such datasets, navigating them become difficult as the application

(This issue is specifically created as my contribution for the instructor training checkout process.)
Can we have a section in this lesson which will explain the ways in which one can change the names of the columns of a data frame in R?

Dear Community,

There is a typo in the section titled "The StringsAsFactors argument" after the second block of code that demonstrates the use of the str() function. Right after the code boxes is written "We can see that the $Color and $State columns are factors and $Speed is a numeric column", but the box shows that the $Color column is a vector of strings.

Regards,

Rodolfo

In episode 3 (https://datacarpentry.org/python-ecology-lesson/03-index-slice-subset/index.html, actually listed as 4. in https://datacarpentry.org/python-ecology-lesson/ ), the distinction between .iloc method for accessing entries by position and .loc to access them by identifier is made, but a third possibility is shown with surveys_df[0:3], which accesses the indices by position.

That

Hello,
Just to make sure you're keeping busy, a new issue ;-)

I'm trying to retrieve raw messages for particular receivers. As an example:

from datetime import datetime, timedelta
from traffic.data import opensky

data = opensky.extended(start=start_time,
                        stop=start_time + timedelta(seconds=1),
                        serials=[80391799, 1806596070] )

I'm a member of The Carpentries staff and I'm submitting this issue on behalf of another member of the community. In most cases I won't be able to follow up or provide more details other that what I'm providing below.

Hi,

As part of the checkout process for carpentries, it is encouraged that we provide feedback to one of the modules. Going through the Python Novice Mindgap section on li

Currently all of the metrics computed are independent of a target variable or column, but if lens.summarise took the name of a column as the target variable, the output of some metrics could be more interpretable even if the target variable is not used in any kind of predictive modelling.

A good example of this could be PCA (see #14), which could plot the different categories of the target va

A small thing, and not very important, but it seems redundant to end every episodes title with "in R" since the name of the lesson is "Introduction to Geospatial Raster and Vector Data with R" and all the episodes use R. Furthermore, there are three episodes that don't say "in R" that do in fact use R....

Have you taught this lesson? One way you can help us improve it is by filing issues here about typos you've discovered, but you can also help us fill out the instructor notes!

• What did you find difficult?
• Where was it too fast?
• What exercises could be improved?
• What did learners struggle with?
• What did you emphasize? W