data frame input (DF)
a
123.213
4343.344
3434.43255
422.45
34534
results required in binary (16 bits)
I have tried a function
intTobits
rawTobits
but didn't worked for me
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in that case only integers were used but here we have numeric values in decimal fractions alsoR Vij– R Vij2016-08-09 04:08:34 +00:00Commented Aug 9, 2016 at 4:08
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3I don't think there is any preexisting function. You have to write your own.user2100721– user21007212016-08-09 04:14:47 +00:00Commented Aug 9, 2016 at 4:14
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1 Answer
The conversion of integer decimal numbers into binary numbers is thoroughly discussed in this post. Non-integer numbers are a different issue.
For the binary representation of floating point decimal numbers you can try this function:
floatToBin <- function(x){
int_part <- floor(x)
dec_part <- x - int_part
int_bin <- R.utils::intToBin(int_part)
dec_bin <- stringr::str_pad(R.utils::intToBin(dec_part * 2^31), 31, pad="0")
sub("[.]?0+$", "", paste0(int_bin, ".", dec_bin))
}
Note that this function only works for non-negative numbers.
This is the output for the numbers indicated in the question:
nums <- c(123.213, 4343.344, 3434.43255, 422.45, 34534)
sapply(nums, floatToBin)
#[1] "1111011.0011011010000111001010110000001"
#[2] "1000011110111.010110000001000001100010010011"
#[3] "110101101010.0110111010111011100110001100011"
#[4] "110100110.0111001100110011001100110011001"
#[5] "1000011011100110"
