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Please try hard to find the letter "N" in 300 "M"s, one "6" in 300 "9"s, etc.
alzheimer_test( char1 = c("9", "O", "M", "I", "F", "D"), char2 = c("6", "C", "N", "T", "E", "O"), nr = 10, nc = 30, seed = NULL, ... )
the 'background' character
the character to be found out
number of rows of the character rectangle
number of columns
seed for random number generation
other arguments passed to set.seed
set.seed
If at least one test item has been passed, a data.frame will be returned telling the result of the test.
# NOT RUN { x = alzheimer_test() # }
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