Messy result using reshape in R

Question

I dont know why, but I obtain a messy result using the reshape function, I have already tried with other answers, but I don't know why my solution is not working

df <- data.frame(design = c("house", "house", "car","car", "plane","plane"),
                    who = c("creator1", "creator2", "creator1", "creator2", 
                            "creator1", "creator2"),
                    how_many = c(3, 6, 1, 7, 8, 2))

I tried with

tidyr::spread(data = df, value=design , key = who)

The results that I have is:

how_many creator1 creator2
1        1      car     <NA>
2        2     <NA>    plane
3        3    house     <NA>
4        6     <NA>    house
5        7     <NA>      car
6        8    plane     <NA>

I want to create a dataframe with this format:

  Design creator1 creator2
  house  3        6
  car    1        7
  plane  8        2

`df %>% spread(who, how_many)` You should have `how_many` for value, not `design`. — Jon Spring, May 18 '19 at 03:07

score 1 · Accepted Answer · answered May 18 '19 at 05:06

As exemplified by @Jon Spring, and in other OS issues.

library(dplyr)
library(tidyr)
df <- data.frame(design = c("house", "house", "car","car", 
                            "plane","plane"),
                 who = c("creator1", "creator2", "creator1", 
                         "creator2","creator1", "creator2"),
                 how_many = c(3, 6, 1, 7, 8, 2))
df

> df
  design      who how_many
1  house creator1        3
2  house creator2        6
3    car creator1        1
4    car creator2        7
5  plane creator1        8
6  plane creator2        2

df2 <- df %>% 
  tidyr::spread(who, how_many)
df2

> df2
  design creator1 creator2
1    car        1        7
2  house        3        6
3  plane        8        2

Messy result using reshape in R

1 Answers1