Zootidier fails when zoo does not have column names

[oliverbothe]

I'm having trouble with applying broom::tidy on zoo-objects which do not have column names.

Reproducible example

## Example from zoo::zoo reference manual:
z2 <- zoo::zoo(matrix(1:12, 4, 3), as.Date("2003-01-01 ") + 0:3)
broom::tidy(z2)
#> Error in colnames(ret)[1:ncol(x)] <- colnames(x): Ersetzung hat Länge 0

[simonpcouch]

Thanks for the issue! This seems worth looking into. I'm taking some time away at the moment, but will spend some time with this and continue discussion here sooner than later.🙂

[simonpcouch]

Thanks again for reporting this! Just addressed in dev broom:

library(zoo)
#> 
#> Attaching package: 'zoo'
#> The following objects are masked from 'package:base':
#> 
#>     as.Date, as.Date.numeric
library(broom)

z2 <- zoo(matrix(1:12, 4, 3), as.Date("2003-01-01 ") + 0:3)
tidy(z2)
#> # A tibble: 12 × 3
#>    index      series value
#>    <date>     <chr>  <int>
#>  1 2003-01-01 x.1        1
#>  2 2003-01-01 x.2        5
#>  3 2003-01-01 x.3        9
#>  4 2003-01-02 x.1        2
#>  5 2003-01-02 x.2        6
#>  6 2003-01-02 x.3       10
#>  7 2003-01-03 x.1        3
#>  8 2003-01-03 x.2        7
#>  9 2003-01-03 x.3       11
#> 10 2003-01-04 x.1        4
#> 11 2003-01-04 x.2        8
#> 12 2003-01-04 x.3       12

^{Created on 2022-06-01 by the reprex package (v2.0.1)}

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