[R] Printing vector

[Rui Barradas]

Simpler, no loops:


print0b <- function(x, len = 10, digits = 2, fill = ""){
   n <- length(x)
   x <- round(x, digits = digits)
   m <- n %/% len
   remainder <- n %% len
   A <- matrix(x[seq_len(len*m)], ncol = len)
   if(remainder > 0){
     A <- rbind(A, c(x[(len*m + 1):n], rep(fill, len*(m + 1) - n)))
   }
   A
}


Hope this helps,

Rui Barradas

Às 07:47 de 22/07/19, Rui Barradas escreveu:
> Hello,
> 
> Maybe something like the following is what you want.
> I have added an extra argument 'fill' to allow to choose what to print 
> in the end. It's default value is "" making the entire matrix elements 
> characters but it can be NA or 0.
> 
> print0 <- function(x, len = 10, digits = 2, fill = ""){
>    n <- length(x)
>    x <- round(x, digits = digits)
>    passes <- n %/% len
>    remainder <- n %% len
>    A <- matrix(fill, nrow = passes + (remainder > 0), ncol = len)
>    for(i in seq_len(passes)){
>      A[i, ] <- x[(len*(i - 1) + 1):(len*i)]
>    }
>    A[nrow(A), 1:remainder] <- x[(len*passes + 1):n]
>    A
> }
> 
> print0(rnorm(23), 10)
> print0(rnorm(23), 10, fill = 0)
> 
> 
> Hope this helps,
> 
> Rui Barradas
> 
> Às 21:34 de 20/07/19, Steven escreveu:
>> Dear All:
>>
>> Below is what I meant. Procedure print0 allows me to print a vector of
>> length 53 in four rows of 10 plus 1 row of 3 (Ido not like the NA). This
>> is silly. I am hoping that there is a candid way to print the matrix.
>> Thank you.
>>
>> Steven Yen
>>
>> ===
>> n<-53; x<-runif(n); # x<-round(x,2)
>>
>> print0<-function(x,c=10,digits=2){
>> # ******************************************
>> # Print vector in rows of a specified length
>> # ******************************************
>>     n<-length(x)
>>     r<-n/c; if(n%%c>0) r<-as.integer(r)+1
>>     y<-rep(NA,r*c)
>>     y[1:n]<-x
>>     y<-matrix(y,r,c,byrow=T)
>>     y<-round(y,digits=digits)
>>     y
>> }
>>
>> print0(x,c=10,digits=3)
>>
>> # result
>> # [,1]  [,2]  [,3]  [,4]  [,5]  [,6]  [,7]  [,8]  [,9] [,10]
>> # [1,] 0.576 0.291 0.600 0.515 0.135 0.335 0.296 0.911 0.454 0.696
>> # [2,] 0.699 0.728 0.442 0.469 0.996 0.539 0.772 0.768 0.652 0.882
>> # [3,] 0.614 0.228 0.748 0.071 0.788 0.428 0.885 0.722 0.432 0.881
>> # [4,] 0.422 0.148 0.459 0.870 0.044 0.421 0.282 0.337 0.751 0.579
>> # [5,] 0.468 0.659 0.446 0.199 0.388 0.576 0.829 0.186 0.823 0.960
>> # [6,] 0.880 0.944 0.709    NA    NA    NA    NA    NA NA    NA
>>
>> Steven 於 2019/7/20 下午 02:00 寫道:
>>>
>>> Is there a convenient way to print a vector into rows of a specified
>>> column length? What I need is to print in the old FORTRAN format, viz.,
>>>
>>> format(10F8.2)
>>>
>>> which would print, for instance, a vector of 25 into two rows of 10
>>> plus an incomplete row of 5. I managed to write a procedure for that
>>> task, as shown below (except that I prefer simply blanks rather than
>>> the NA). I am too embarrassed to even show the procedure. In short, I
>>> like to print in the above FORTRAN format. Thank you.
>>>
>>> ----
>>>
>>> [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [1,] 0.66 0.26 0.82
>>> 0.73 0.13 0.05 0.56 0.67 0.74 0.87 [2,] 0.91 0.25 0.40 0.39 0.50 0.89
>>> 0.07 0.84 0.14 0.75 [3,] 0.38 0.08 0.86 0.97 0.56 NA NA NA NA NA
>>
>>     [[alternative HTML version deleted]]
>>
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>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
> 
> ______________________________________________
> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide 
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.