将R data.frame转换为Javascript数组 [英] Convert R data.frame to Javascript array
问题描述
我想将数据框的某些列保存为特定格式(JavaScript格式).我试图从rjson包中使用toJSON(),但这样做无效.
I want to save some columns of my data frame into a specific format (JavaScript format).I'v tried to use toJSON() from rjson package but that deosen't works.
我的结果应类似于: http://leaflet.github.io/Leaflet.markercluster/example/realworld.388.js
请帮助,并预先感谢.
推荐答案
最快的方法是使用 apply
函数之一.碰巧,我发现最好的一个就是 apply
本身.
The fastest way to do it is going to use one of the apply
functions. It just so happens the best one I found was apply
itself.
# this will go row by row
apply(allTheData, 1, function(x){
print(x["COL_NAME"])
})
您不能在申请中使用 x $ COL_NAME
,因此您必须使用上面的方式.
You can't use x$COL_NAME
in apply so you have to use the way I did above.
您可以使用其他 apply
函数,但是要逐行查找,我发现这是最容易应用的函数.
You could use other apply
functions, but to go row by row I found this one the easiest to apply.
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