Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
1.1k views
in Technique[技术] by (71.8m points)

r - How to round all values in a matrix?

I use the following method to store all my correlations in a matrix:

corrs <- cor(dataset, use="pairwise.complete.obs")

But now I'd like to round the values to two digits after the comma. How can I do that? I just found a round function but don't know how to apply it to all values.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

Just as in your other question, use the function (round) you found :)

corrs <- round(cor(dataset, use="pairwise.complete.obs"), 2)

For example:

> round(cor(cars),2)
      speed dist
speed  1.00 0.81
dist   0.81 1.00

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...