为什么我不能从 R markdown 中的链接下载？

Question

I tried to run this code in a rmd file but still I'm getting an error and I don't know how to resolve this. The Code is: pizza3 <- fromJSON('http://www.jaredlander.com/data/PizzaFavorites.json')

And I'm getting an error as:

Error in fromJSON("http://www.jaredlander.com/data/PizzaFavorites.json") :
unexpected character 'h' Calls: <Anonymous> ... withCallingHandlers ->
withVisible -> eval -> eval -> fromJSON```

Answer 1

@Rohit this works for me, maybe you haven't loaded jsonlite as Stéphane has suggested.

library(jsonlite)
pizza3 <- jsonlite::fromJSON("http://www.jaredlander.com/data/PizzaFavorites.json")
pizza3
#>                     Name                                Details
#> 1          Di Fara Pizza     1424 Avenue J, Brooklyn, NY, 11230
#> 2          Fiore's Pizza   165 Bleecker St, New York, NY, 10012
#> 3              Juliana's  19 Old Fulton St, Brooklyn, NY, 11201
#> 4     Keste Pizza & Vino   271 Bleecker St, New York, NY, 10014
#> 5  L & B Spumoni Gardens      2725 86th St, Brooklyn, NY, 11223
#> 6 New York Pizza Suprema       413 8th Ave, New York, NY, 10001
#> 7           Paulie Gee's 60 Greenpoint Ave, Brooklyn, NY, 11222
#> 8                Ribalta      48 E 12th St, New York, NY, 10003
#> 9              Totonno's  1524 Neptune Ave, Brooklyn, NY, 11224

^{Created on 2020-02-28 by the reprex package (v0.3.0)}