tests/testthat/_snaps/normal.md

In ISCAM: Companion to the Book "Investigating Statistical Concepts, Applications, and Methods"

iscamnormprob returns formatted probabilities

Code
  res_above$output
Output
  [1] "probability: 0.025 "

Code
  res_between$output
Output
  [1] "probability: 0.6827 "

iscamnormprob handles below and outside directions

Code
  res_below$output
Output
  [1] "probability: 0.3085 "

Code
  res_outside$output
Output
  [1] "probability: 0.3935 "

iscamnormpower reports null and alternative rejection rates

Code
  res$output
Output
  [1] "Null: Probability 0.592 and above = 0.05 "    
  [2] "Alt: Probability 0.592 and above = 0.2253625 "

iscaminvnorm reports requested quantiles

Code
  res_below$output
Output
  [1] "The observation with 0.05 probability below is -1.645 "

Code
  res_outside$output
Output
  [1] "There is 0.1 probability outside -1.645 and 1.645 "

iscamnormpower handles less and two-sided alternatives

Code
  res_less$output
Output
  [1] "Null: Probability 0.3677 and below = 0.1 "     
  [2] "Alt: Probability 0.3677 and below = 0.3047272 "

Code
  res_two$output
Output
  [1] "Null: Probability in rejection region 0.05 " 
  [2] "Alt: Probability in rejection region 0.1549 "

iscaminvnorm supports legacy Sd values

Code
  res_above$output
Output
  [1] "The observation with 0.2 probability above is 3.262 "

Code
  res_between$output
Output
  [1] "There is 0.9 probability between -0.3159 and 2.3159 "

iscamnormprob prints help for question mark

Code
  collapse_output(help_lines)
Output
  [1] "Arguments:\n     xval: observed value.\n     mean: mean of normal distribution.\n     sd: standard deviation of normal distribution.\n     direction: direction for probability calculation, \"above\" or \"below\";\n     if \"outside\" or \"between\" are used, a second larger\n     observation, 'xval2' must be specified\n     label: horizontal axis label.\n     xval2: second observation value.\n     digits: number of digits to display.\n     verbose: Logical, defaults to 'TRUE'. Set to 'FALSE' to suppress\n     messages"

iscaminvnorm prints help for question mark

Code
  collapse_output(help_lines)
Output
  [1] "Arguments:\n     prob1: probability to find normal quantile of.\n     mean: mean of normal distribution.\n     sd: standard deviation of normal distribution.\n     Sd: deprecated-available for backwards compatibility.\n     direction: direction for probability calculation: \"above\", \"below\",\n     \"outside\", \"between\".\n     verbose: Logical, defaults to 'TRUE'. Set to 'FALSE' to suppress\n     messages"

iscamnormpower prints help for question mark

Code
  collapse_output(help_lines)
Output
  [1] "Arguments:\n     LOS: A numeric value representing the level of significance; 0 <\n     'LOS'< 1\n     n: A numeric value representing the sample size\n     prob1: A numeric value representing the first probability\n     alternative: \"less\", \"greater\", or \"two.sided\"\n     prob2: A numeric value representing the second probability\n     verbose: Logical, defaults to 'TRUE'. Set to 'FALSE' to suppress\n     messages"

ISCAM documentation built on Feb. 12, 2026, 5:07 p.m.