如何從R中的文本文件中刪除空行？

-1

在一些文件中，當我嘗試將文件讀入R（使用jsonlite）時，我看到一個空行導致錯誤。

如何使用R刪除任何空白行？

下面是空行的部分的一個例子：

mouse","trial_index":92,"time_elapsed":255348,"internal_node_id":"0.0-3.0-2.0-27.0","subject":"693","answer":1},{"rt":-1,"stimulus":"/study_assets/creactive/static/images/bird.jpeg","key_press":-1,"block":"two-back","condition":"target","trial_type":"single-stim-mouse","trial_index":93,"time_elapsed":257160,"internal_node_id":"0.0-3.0-2.0-28.0","subject":"693","answer":0},{"rt":407,"stimulus":"/study_assets/creactive/static/images/bird.jpeg","key_press":"mouse","block":"two-back","condition":"distractor","trial_type":"single-stim-mouse","trial_index":94,"time_elapsed":257871,"internal_node_id":"0.0-3.0-2.0-29.0","subject":"693","answer":0}] 

[{"rt":71,"key_press":"mouse","trial_type":"text","trial_index":0,"time_elapsed":74,"internal_node_id":"0.0-0.0","subject":"695"},{"rt":-1,"correct":false,"stimulus":"<DIV id=\"goNoGoFixationPoint\">+</DIV>","key_press":-1,"response":"fixation","trial_type":"categorize-mouse","trial_index":1,"time_elapsed":575,"internal_node_id":"0.0-1.0-0.0-0.0","subject":"695"}

來源

2016-10-11 Or D

在函數read.table' （）'一個可以設置'blank.lines.skip = TRUE' – jogo

當我嘗試時出現以下錯誤：{掃描錯誤（文件，什麼，nmax，sep，dec，quote，skip，nlines，na.strings，：第2行沒有111個元素} –

您的輸入不是一個表！請設置sep = ...（最終是'sep ='μ''） 'stringsAsFactors = FALSE' – jogo

在我使用readlines方法結束

所以並用的nchar（一個循環）如下：

來源

2016-10-19 15:29:44

1.你在哪裏放置了'readLines（）'的結果？2.你的for循環是等價的到'x < - x [nchar（x）！= 0]'3.順便說一句：只有一個表達式不需要大括號。 – jogo

我把它放在數據幀/文件（dataframe < - readLines ...）中。 2.我對R語法不夠熟悉，我想你的建議比較好，謝謝你的幫助。 –

如何從R中的文本文件中刪除空行？

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