Being a new user here, my questions are not being fully answered due to not being reproducible. I read the thread relating to producing reproducible code but to avail. Specifically lost on how to use the dput() function.
Could someone provide a step by step on how to use the dput() using the iris df for eg it would be very helpful.
Using the iris dataset, which is handily included into R, we can see how dput() works:
data(iris)
head(iris)
Sepal.Length Sepal.Width Petal.Length Petal.Width Species
1 5.1 3.5 1.4 0.2 setosa
2 4.9 3.0 1.4 0.2 setosa
3 4.7 3.2 1.3 0.2 setosa
4 4.6 3.1 1.5 0.2 setosa
5 5.0 3.6 1.4 0.2 setosa
6 5.4 3.9 1.7 0.4 setosa
Now we can get the whole dataset using dput(iris). In most situations, a whole dataset is unnecessary to provide for a Stackoverflow question, as a few lines of the relevant variables suffice as a working data example.
Two things come in handy: The head() function outputs only the first six rows of a dataframe/matrix. Also, the indexing in R (via brackets) allows you to select only specific columns.
Therefore, we can restrict the output of dput() using a combination of these two:
dput(head(iris[, c(1, 3)]))
structure(list(Sepal.Length = c(5.1, 4.9, 4.7, 4.6, 5, 5.4),
Petal.Length = c(1.4, 1.4, 1.3, 1.5, 1.4, 1.7)), .Names = c("Sepal.Length",
"Petal.Length"), row.names = c(NA, 6L), class = "data.frame")
will give us the code to reproduce the first (up to) six rows of column 1 and 3 of the iris dataset.
df <- structure(list(Sepal.Length = c(5.1, 4.9, 4.7, 4.6, 5, 5.4),
Petal.Length = c(1.4, 1.4, 1.3, 1.5, 1.4, 1.7)), .Names = c("Sepal.Length",
"Petal.Length"), row.names = c(NA, 6L), class = "data.frame")
> df
Sepal.Length Petal.Length
1 5.1 1.4
2 4.9 1.4
3 4.7 1.3
4 4.6 1.5
5 5.0 1.4
6 5.4 1.7
If the first rows do not suffice, we can skip using head() and rely on indexing only:
dput(iris[1:20, c(1, 3)])
structure(list(Sepal.Length = c(5.1, 4.9, 4.7, 4.6, 5, 5.4, 4.6,
5, 4.4, 4.9, 5.4, 4.8, 4.8, 4.3, 5.8, 5.7, 5.4, 5.1, 5.7, 5.1
), Petal.Length = c(1.4, 1.4, 1.3, 1.5, 1.4, 1.7, 1.4, 1.5, 1.4,
1.5, 1.5, 1.6, 1.4, 1.1, 1.2, 1.5, 1.3, 1.4, 1.7, 1.5)), .Names = c("Sepal.Length",
"Petal.Length"), row.names = c(NA, 20L), class = "data.frame")
will give us the the first twenty rows:
df <- structure(list(Sepal.Length = c(5.1, 4.9, 4.7, 4.6, 5, 5.4, 4.6,
5, 4.4, 4.9, 5.4, 4.8, 4.8, 4.3, 5.8, 5.7, 5.4, 5.1, 5.7, 5.1
), Petal.Length = c(1.4, 1.4, 1.3, 1.5, 1.4, 1.7, 1.4, 1.5, 1.4,
1.5, 1.5, 1.6, 1.4, 1.1, 1.2, 1.5, 1.3, 1.4, 1.7, 1.5)), .Names = c("Sepal.Length",
"Petal.Length"), row.names = c(NA, 20L), class = "data.frame")
> df
Sepal.Length Petal.Length
1 5.1 1.4
2 4.9 1.4
3 4.7 1.3
4 4.6 1.5
5 5.0 1.4
6 5.4 1.7
7 4.6 1.4
8 5.0 1.5
9 4.4 1.4
10 4.9 1.5
11 5.4 1.5
12 4.8 1.6
13 4.8 1.4
14 4.3 1.1
15 5.8 1.2
16 5.7 1.5
17 5.4 1.3
18 5.1 1.4
19 5.7 1.7
20 5.1 1.5