erikgrenestam

Not sure if this is a bug or my own ignorance, but I've noticed that the ordering of columns in the data seem to matter. Example: ``` library(nowcasting) data(NYFED) base

BUG: ipmt not working with numpy==1.26.4 when using a pandas df as input.

2

### Describe the issue: Not sure if bug or feature request, but I used to be able to use pandas dataframe columns as input arrays to npf.ipmt(). With numpy 1.26.4...