Skip to content

[Feature Request] Pretty-print named vectors and matrices? #800

@emstruong

Description

@emstruong

Hello,

I'd like to please request a function similar to pretty_print_code() to allow the printing of named vectors.

For example, in this snippet

x<-seq(0.001, 0.020, by = 0.001)
names(x) <- paste0("idx", 1:20)
x
#>  idx1  idx2  idx3  idx4  idx5  idx6  idx7  idx8  idx9 idx10 idx11 idx12 idx13 
#> 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 0.010 0.011 0.012 0.013 
#> idx14 idx15 idx16 idx17 idx18 idx19 idx20 
#> 0.014 0.015 0.016 0.017 0.018 0.019 0.020

Created on 2025-12-08 with reprex v2.1.1

I find it quite hard to separate the names of the vector from the vector values itself. A color coded way to differentiate the two would be greatly appreciated.

Edit:

While I'm at it, printing a named matrix would also be greatly appreciated.

Here's an example problem generated using Claude

# Create the matrix with random values
set.seed(123)  # For reproducibility
mat <- matrix(rnorm(400, mean = 50, sd = 15), nrow = 20, ncol = 20)

# Create row names
row_names <- paste0("Row_", sprintf("%02d", 1:20))

# Create column names
col_names <- paste0("Col_", sprintf("%02d", 1:20))

# Assign names
rownames(mat) <- row_names
colnames(mat) <- col_names

# Display the matrix
print(mat)

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions