Christoph Scheuch
Christoph Scheuch
When I use `DataReader()` to fetch data from `"famafrench"`: ``` import pandas as pd # 2.0.3 import pandas_datareader as pdr # 0.10.0 start_date = "1960-01-01" end_date = "2021-12-31" factors_ff_monthly_raw =...
`ggplot2` recommends using the `linewidth` aesthetic instead of `size` as of version 3.4.0 (see this blog post here: https://www.tidyverse.org/blog/2022/11/ggplot2-3-4-0/). The argument in the blog post is as follows: "The reason...
I tried to replicate the minimal example from the website using an in-memory SQLite database: ``` from siuba import _, tbl, group_by, filter from siuba.data import cars # setup ----...
Add it to preface or getting started?
## The problem I cannot use linear activation functions in `brulee_mlp()`. I instead get my favorite R error :) ## Reproducible example ```r library(brulee) library(recipes) library(yardstick) data(bivariate, package = "modeldata")...
It is neither straight-forward how to create, nor how to replace environment variables for the WRDS connection. [We write](https://www.tidy-finance.org/python/wrds-crsp-and-compustat.html): "To establish a connection, you use the function create_engine() with a...
As it turns out the OpenAI API frequently returns very unhelpful error messages like this one: ``` The server had an error while processing your request. Sorry about that! ```...
We currently use `{linearmodels}`, but I think `{pyfixest}` is the better choice for us because it is in sync with the R version based on `{fixest}`. We can also just...
The issue came up with `r-tidyfinance`: All `month` columns are actually dates and the frequency is in the object name anyway, e.g., `crps_monthly` vs `crsp_daily`. For month, one would typically...
Goal is to replace the SQLite database with parquet files that are shared between R and Python scripts, so that we have interoperability of data and remove redundancy. To achieve...