formulaic

formulaic copied to clipboard

Getting variables and lhs, rhs

4

Current it is difficult to get parts of the formula and what are the data.frame variables (i.e. the column names). It would be useful to add some facilities to enable...

teucer

Output column names for sparse output

1

The *dataframe* output of a model matrix has column names [Intercept, b[T.a],...] when one specifies `output = sparse`, the column identifiers are not available... ( the output is a regular...

seanv507

DOC: Contrast Specification

1

Another thing I was considering is wheater we are able to use formulaic for incremental training of some models. Let's imagine we have a dataset that has the categorical variable...

petrhrobar

Add `include_intercept` to the `Formula` constructor?

6

I think there is a discrepancy in the output of rhs: 1. formula "y~x" -> `rhs = "x+1"` 2. formula "y~x-1" -> `rhs = "x"` 3. formula "y~x+0" -> `rhs...

teucer

Build new ModelMatrix using state of existing ModelSpec

5

Hi Matthew. This looks like a very promising package. I'm hoping to use this instead of `patsy` as soon as the API has matured. I'm therefore doing some experimentation with...

klaapbakken

API question: Bind model spec info to data container or not

3

Preamble: I have a hard time understanding some of the core code parts. #### 1. What is the reason to add metadata to the data container? ```python import pandas as...

lorentzenchr

Column dtypes are not consistent

1

A model spec does not keep the column type. Example: ``` import pandas as pd from formulaic import model_matrix df1 = pd.DataFrame({ 'a': ['A', 'B', 'C'], }) df2 = pd.DataFrame({...

lorentzenchr

Consider migrating project to some community umbrella

1

What about a possible migration of formulaic under some community space like pydata (like patsy) or statsmodels (like statsmodels)? This is just a suggestion with the purpose of a broader...

lorentzenchr

The current documentation is incomplete and full of typos. Finish it!

matthewwardrop

Add a "safe" mode that avoids using `eval`?

3

In some cases, particularly in production code, it is nice to have a safe mode that avoids using `eval`, at the expense of some functionality. This issue is here so...

matthewwardrop