This question already has answers here:
long/bigint/decimal equivalent datatype in R
(7 answers)
how to deal with BigINT in R [duplicate]
(1 answer)
Closed 2 years ago.
In R language, I have a problem regarding the big integers.
I type the number in the console, but the response is not equal to my input.
7241562255469626002
[1] 7241562255469626368
I also tried to set the digits option but it did not work:
options("digits" = 22)
7241562255469626002
[1] 7241562255469626368
What should I do to make it interpret the big numbers correctly?
Related
This question already has answers here:
Create a vector that contains the first 10 powers of 2, then the first 10 powers of 3 by R language
(2 answers)
Closed 1 year ago.
How can I create this sequence in R?
I've been watching some guides but these are simple sequences.
It is vectorized. We can do
2^(1:10)/(1:10)
This question already has answers here:
What's the difference between `1L` and `1`?
(4 answers)
Why would R use the "L" suffix to denote an integer?
(2 answers)
Clarification of L in R
(1 answer)
Closed 2 years ago.
By default, it takes a number as double in R. And we have to add L to change it to an integer. But why L? We could have used A,B, C, etc or any other Alphabet?
This question already has answers here:
Dividing a vector into categories
(1 answer)
How to create a categorical variable in R with unequal categoris [closed]
(1 answer)
R if else with for loop [duplicate]
(3 answers)
Closed 5 years ago.
I'm programming in R.I need to divided a vector into x partitions(eg,x=4),and get the partition number of the vector, something like this...
a <- data.frame(x=1:20)
a$numofpartition<-ifelse(a$x<6,1,ifelse(a$x<11,2,ifelse(a$x<16,3,4)))
As the code,I divided a$x into 4 partitions,and get the partition number for each x, any functions in R could do this? Thank you!
This question already has an answer here:
R floating point number precision being lost on coversion from character
(1 answer)
Closed 7 years ago.
How do I retain the full 16 digit precision when coercing a text to numeric in R?
My attempt below does not appear to do this...
x<-"0.501288104715059"
x<-as.double(x)
x
[1] 0.5012881
[Note this is similar to a previously asked question using as.numeric to convert a character to number but his question refers to the case of using as.double to convert a character to a number]
The code in fact does work - I just needed to set the number of digits to be displayed
x<-"0.501288104715059"
x<-as.double(x)
options(digits=16)
x
[1] 0.501288104715059
Might be useful to somebody else
This question already has answers here:
Equivalent of matlab 'ans' in R [duplicate]
(2 answers)
Capture last output as an R object [duplicate]
(1 answer)
Closed 9 years ago.
In Mathematica, the output of the last expression can be accessed using the symbol %.
In particular, one can do the following in Mathematica:
1+2
% / 3
This will return the output 1, because the output of the first expression is 3, and 3/3 = 1.
Is there an equivalent functionality in R?
Here you go. Try ? .Last.value to learn more
1 + 2
.Last.value /3