'How to show first 10 rows and first 5 columns in R?
I don't know how to use the head function to meet my needs
small<- "Chicago_small.xlsx"
head(small, n=10)
Solution 1:[1]
You can provide multiple dimensions to the n argument of head().
head(mtcars, c(3, 2))
#> mpg cyl
#> Mazda RX4 21.0 6
#> Mazda RX4 Wag 21.0 6
#> Datsun 710 22.8 4
Created on 2022-03-10 by the reprex package (v2.0.1)
Solution 2:[2]
Try something along the lines of
small[1:10, 1:5]
Solution 3:[3]
Colin Gillespie, in Efficient R programming, suggests adding the following functions to RProfile:
# ht == headtail
# Show the first 6 rows & last 6 rows of a data frame
ht = function(d, n=6) rbind(head(d, n), tail(d, n))
# Show the first 5 rows & first 5 columns of a data frame
hh = function(d) d[1:5, 1:5]
You will be able then run hh(mtcars) to obtain a quick summary below:
>> hh(mtcars)
mpg cyl disp hp drat
Mazda RX4 21.0 6 160 110 3.90
Mazda RX4 Wag 21.0 6 160 110 3.90
Datsun 710 22.8 4 108 93 3.85
Hornet 4 Drive 21.4 6 258 110 3.08
Hornet Sportabout 18.7 8 360 175 3.15
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | Dan Adams |
| Solution 2 | Oliver |
| Solution 3 | Konrad |