CODEWITHSUNDEEP
rmatrixdecimaloutput
JPK
JPK

Reputation: 39

same matrix with different decimal rules

I am working on a function to do my own output from some linear models and i am wanting to make a matrix of output i am trying to get a matrix with different decimal rules. for example if i have:

structure(c(1, 2, 3.45, 5.67), .Dim = c(4L, 1L), .Dimnames = list(c("A", "B", "C", "D"), NULL))'

is it possible to make rows 1 and 2 just show up as integers and the decimals stay in the last two rows? i know i could make two matrices and use rbind() but i want to keep the alignment the same so the columns line up well.

Upvotes: 1

Views: 627

Answers (2)

Sven Hohenstein
Sven Hohenstein

Reputation: 81693

It is very easy if you transform your numeric matrix into a character matrix before printing:

print("[<-"(mat, as.character(mat)), quote = FALSE)

This displays:

  [,1]
A 1   
B 2   
C 3.45
D 5.67

This above command is similar to:

mat[] <- as.character(mat)
print(mat, quote = FALSE)

but keeps mat unchanged.

Upvotes: 3

jlhoward
jlhoward

Reputation: 59355

Output in R is formatted using the print(...) function; use the digits= parameter to control the number of significant digits in the output.

So, if your matrix above is M:

print(M[1:2,],digits=0)
# A B 
# 1 2 
print(M[3:4,],digits=3)
#    C    D 
# 3.45 5.67

Upvotes: 2

Related Questions