把简单的字符串写到文本里面-R

Jimmy

我是谷歌看到的，在perl或者python等语言很简单，就是print咯
但是R里面我们习惯了格式化的数据，一般是table输入输出的。
如果只有一个字符串，但就是想输入到文本，比如一个json

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[
{"showscoreidx": 0, "mode": "barplot", "url": "http://dc2.cistrome.org/data5/browser/44026_sort_peaks.narrowPeak.bed.gz", "scorenamelst": ["signal value", "P value (-log10)", "Q value (-log10)"], "strokecolor": "#ff6600", "type": "hammock", "boxcolor": "#210085", "name": "44026_PC-3_AGO1"}, {"url": "http://dc2.cistrome.org/data5/browser/44026_treat.bw", "type": "bigwig", "mode": "show", "name": "44026_PC-3_AGO1", "height": 50}, 
{"showscoreidx": 0, "mode": "barplot", "url": "http://dc2.cistrome.org/data5/browser/48594_sort_peaks.narrowPeak.bed.gz", "scorenamelst": ["signal value", "P value (-log10)", "Q value (-log10)"], "strokecolor": "#ff6600", "type": "hammock", "boxcolor": "#210085", "name": "48594_MCF-7_AGO1"}, {"url": "http://dc2.cistrome.org/data5/browser/48594_treat.bw", "type": "bigwig", "mode": "show", "name": "48594_MCF-7_AGO1", "height": 50}, 
{"showscoreidx": 0, "mode": "barplot", "url": "http://dc2.cistrome.org/data5/browser/48609_sort_peaks.narrowPeak.bed.gz", "scorenamelst": ["signal value", "P value (-log10)", "Q value (-log10)"], "strokecolor": "#ff6600", "type": "hammock", "boxcolor": "#210085", "name": "48609_None_AGO1"}, {"url": "http://dc2.cistrome.org/data5/browser/48609_treat.bw", "type": "bigwig", "mode": "show", "name": "48609_None_AGO1", "height": 50}, 
{"showscoreidx": 0, "mode": "barplot", "url": "http://dc2.cistrome.org/data5/browser/48610_sort_peaks.narrowPeak.bed.gz", "scorenamelst": ["signal value", "P value (-log10)", "Q value (-log10)"], "strokecolor": "#ff6600", "type": "hammock", "boxcolor": "#210085", "name": "48610_MCF-7_AGO1"}, {"url": "http://dc2.cistrome.org/data5/browser/48610_treat.bw", "type": "bigwig", "mode": "show", "name": "48610_MCF-7_AGO1", "height": 50}
]

咋办呢，就需要用sink+cat了，类似于打开文件句柄，再写入字符。

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sink("outfile.txt")
cat("hello")
cat("\n")
cat("world")
sink()

还有一个好玩的东西是file.show("outfile.txt") 可以调用系统默认软件把txt文本打开，一般人的默认软件是notepad咯