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我有一個列表,看起來有很多部分。我的目標是用NA來替換每個$部分中的值。我想保留標題。替換列表中的所有值(保留標題)與NA
名單如下:
$href
[1] "https://api.spotify.com/v1/albums/4vucVTj5GjNV0MllVjsxo5/tracks?offset=0&limit=50"
$items
artists
1 https://open.spotify.com/artist/2ueoLVCXQ948OfhVvAy3Nn, https://api.spotify.com/v1/artists/2ueoLVCXQ948OfhVvAy3Nn, 2ueoLVCXQ948OfhVvAy3Nn, Perfume Genius, artist, spotify:artist:2ueoLVCXQ948OfhVvAy3Nn
2 https://open.spotify.com/artist/2ueoLVCXQ948OfhVvAy3Nn, https://api.spotify.com/v1/artists/2ueoLVCXQ948OfhVvAy3Nn, 2ueoLVCXQ948OfhVvAy3Nn, Perfume Genius, artist, spotify:artist:2ueoLVCXQ948OfhVvAy3Nn
available_markets
1 AD, AR, AT, AU, BE, BG, BO, BR, CA, CH, CL, CO, CR, CY, CZ, DE, DK, DO, EC, EE, ES, FI, FR, GB, GR, GT, HK, HN, HU, ID, IE, IS, IT, JP, LI, LT, LU, LV, MC, MT, MX, MY, NI, NL, NO, NZ, PA, PE, PH, PL, PT, PY, SE, SG, SK, SV, TR, TW, US, UY
2 AD, AR, AT, AU, BE, BG, BO, BR, CA, CH, CL, CO, CR, CY, CZ, DE, DK, DO, EC, EE, ES, FI, FR, GB, GR, GT, HK, HN, HU, ID, IE, IS, IT, JP, LI, LT, LU, LV, MC, MT, MX, MY, NI, NL, NO, NZ, PA, PE, PH, PL, PT, PY, SE, SG, SK, SV, TR, TW, US, UY
disc_number duration_ms explicit
spotify
1 1 166946 FALSE https://open.spotify.com/track/2QX2OeVkckAavMTJtbV7GX
2 1 224620 FALSE https://open.spotify.com/track/15yWH0t80xio9hCjOZpalj
href
id
1 https://api.spotify.com/v1/tracks/2QX2OeVkckAavMTJtbV7GX 2QX2OeVkckAavMTJtbV7GX
2 https://api.spotify.com/v1/tracks/15yWH0t80xio9hCjOZpalj 15yWH0t80xio9hCjOZpalj
name
1 Slip Away - Recorded at Spotify Studios NYC
2 Body's In Trouble - Recorded at Spotify Studios NYC
preview_url track_number type
1 https://p.scdn.co/mp3-preview/fc1e8a296749237d7558ecc09bc5244251d033de?cid=c432b36c21724d2989baf7d4d8a6bfd3 1 track
2 https://p.scdn.co/mp3-preview/ac154324daedaff11d9806367bc980293dfb491b?cid=c432b36c21724d2989baf7d4d8a6bfd3 2 track
uri
1 spotify:track:2QX2OeVkckAavMTJtbV7GX
2 spotify:track:15yWH0t80xio9hCjOZpalj
$limit
[1] 50
$`next`
named list()
$offset
[1] 0
$previous
named list()
$total
[1] 2
如何轉換此列表只針對NA像這樣的每一行的值?
$href
[1] NA
$items
artists
1 NA
2 NA
available_markets
1 NA
2 NA
disc_number duration_ms explicit
spotify
1 NA
2 NA
href
id
1 NA
2 NA
name
1 NA
2 NA
preview_url track_number type
1 NA
2 NA
uri
1 NA
2 NA
$limit
[1] NA
$`next`
NA
$offset
[1] NA
$previous
NA
$total
[1] NA
任何幫助將是偉大的解決這個問題。我知道如何替換數據框的值,但不是列表。
謝謝!
這將是更容易幫助,如果你提供的[重複的例子(https://stackoverflow.com/questions/5963269/how-to-make-a -great-R再現的-例子)。共享一個'dput()'而不僅僅是打印的對象。這真的需要嗎?你究竟想要做什麼? – MrFlick
我想列表中的每個元素都是數據框?如果是這樣,也許你可以使用'lapply(you_list,fun)',其中'fun'是一個函數如何替換數據幀的值? –
我認爲這會做'list_2 < - purrr :: map(list_1,〜替換(.x,!is.na(.x),NA))' – roarkz