[R] What to do when problems() returns nothing

[Rich Shepard]

On Thu, 4 Nov 2021, Ben Tupper wrote:

> The help for problems() shows that the expected argument has a default
> value of .Last.value. If you don't provide the input argument, it just
> uses the last thing your R session evaluated. That's great if you run
> problems() right after your issues arises. But you have inserted
> stop_for_problems() before you get a chance to run problems(). So, in your
> case, if you want to inspect the problems associated with x, you should
> provide x explicitly ala problems(x).

Ben,

I've isolated one data file to import by removing both stop_for_problems()
and problems():
library(tidyverse)

cor_stage <- read_csv("../data/cor-stage.csv", col_names = TRUE,
                       col_types = list (
                           site_nbr = col_character(),
                           year = col_integer(),
                           mon = col_integer(),
                           day = col_integer(),
                           hr = col_double(),
                           min = col_double(),
                           ft = col_integer())
                       )

The gzipped data file can be downloaded from <https://tinyurl.com/5usc8wbz>.

R imports the file but when I look at it the last column has not been
imported and problems() doesn't return them:

> source('import2.r')
> cor_stage
# A tibble: 415,903 × 8
    site_nbr  year   mon   day    hr   min tz       ft
    <chr>    <int> <int> <int> <dbl> <dbl> <chr> <int>
  1 14171600  2009    10    23     0     0 PDT      NA
  2 14171600  2009    10    23     0    15 PDT      NA
  3 14171600  2009    10    23     0    30 PDT      NA
  4 14171600  2009    10    23     0    45 PDT      NA
  5 14171600  2009    10    23     1     0 PDT      NA
  6 14171600  2009    10    23     1    15 PDT      NA
  7 14171600  2009    10    23     1    30 PDT      NA
  8 14171600  2009    10    23     1    45 PDT      NA
  9 14171600  2009    10    23     2     0 PDT      NA
10 14171600  2009    10    23     2    15 PDT      NA
# … with 415,893 more rows
Warning message:
One or more parsing issues, see `problems()` for details 
> problems()
>

There are 20 .csv files; a few import properly the rest don't. I've not
before needed to import this many data files for a project but using
read.csv() hasn't failed to import the data column, either.

Thanks,

Rich