lsr

• goodnessOfFitTest(), associationTest(): when a factor variable had unused levels, the extra levels were silently included in the test with zero observed cases, changing degrees of freedom and p-values without any indication. Both functions now issue an informative warning when unused levels are detected, with a suggestion to call droplevels().
• modeOf(), maxFreq(): all-NA or zero-length input produced a cryptic base-R "no non-missing arguments to max" warning and returned empty output. Both functions now issue an informative warning and return NA.
• wideToLong(): when no column names contained the separator string, the error came from deep inside stats::reshape() with no hint that the cause was a naming-convention mismatch. The function now checks for this condition early and stops with a plain-English message.
• importList(): passing an unnamed or partially-named list produced a cryptic "'names' must be a character vector" error from base R. The function now checks for missing names before proceeding and stops with an informative message. Passing an empty list now also produces a message rather than silently doing nothing.

Bug fixes

• correlate(): when fewer than 2 numeric variables were present in the input, the function could iterate incorrectly due to 1:(n-1) evaluating to c(1, 0) rather than an empty sequence. Fixed with seq_len(n-1).
• oneSampleTTest(): the conf.level argument was not forwarded to stats::t.test(), so $conf.int always contained the 95% interval regardless of what the user requested (#9).
• independentSamplesTTest(), pairedSamplesTTest(), associationTest(): passing a tibble as data caused spurious type-check failures. Fixed by coercing data to a plain data frame on entry (#2).

Dependencies

• tibble and withr added to Suggests (used in tests only).

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