Question

我过去几天一直在尝试将我的JSON文件导入R中，并且我尝试了几种方法，但到目前为止还没有运气。

文件的部分内容如下：

[{"xmin":51.90606732,"xmax":51.906426887100714,"ymin":4.46843454,"ymax":4.469002225180884,"measures":[],"sum":0,"mean":null,"variance":-0.0,"stdev":0.0,"count":0,"maxdb":null,"mindb":null},
{"xmin":51.90606732,"xmax":51.906426887100714,"ymin":4.469002225180884,"ymax":4.469569910361769,"measures":[],"sum":0,"mean":null,"variance":-0.0,"stdev":0.0,"count":0,"maxdb":null,"mindb":null},
{"xmin":51.90606732,"xmax":51.906426887100714,"ymin":4.469569910361769,"ymax":4.470137595542654,"measures":[],"sum":0,"mean":null,"variance":-0.0,"stdev":0.0,"count":0,"maxdb":null,"mindb":null},
{"xmin":51.90606732,"xmax":51.906426887100714,"ymin":4.470137595542654,"ymax":4.470705280723538,"measures":[],"sum":0,"mean":null,"variance":-0.0,"stdev":0.0,"count":0,"maxdb":null,"mindb":null}]

我想问一下是否有人能够指出最适合将此.json文件导入R的技术，以及有关如何清理数据以进行分析的一些想法（即描述性统计和可视化））

非常感谢，雨果

Answer 1

使用jsonlite包：

    >library(jsonlite)
    >a = '[{"xmin":51.90606732,"xmax":51.906426887100714,"ymin":4.46843454,"ymax":4.469002225180884,"measures":[],"sum":0,"mean":null,"variance":-0.0,"stdev":0.0,"count":0,"maxdb":null,"mindb":null},
           {"xmin":51.90606732,"xmax":51.906426887100714,"ymin":4.469002225180884,"ymax":4.469569910361769,"measures":[],"sum":0,"mean":null,"variance":-0.0,"stdev":0.0,"count":0,"maxdb":null,"mindb":null},
           {"xmin":51.90606732,"xmax":51.906426887100714,"ymin":4.469569910361769,"ymax":4.470137595542654,"measures":[],"sum":0,"mean":null,"variance":-0.0,"stdev":0.0,"count":0,"maxdb":null,"mindb":null},
           {"xmin":51.90606732,"xmax":51.906426887100714,"ymin":4.470137595542654,"ymax":4.470705280723538,"measures":[],"sum":0,"mean":null,"variance":-0.0,"stdev":0.0,"count":0,"maxdb":null,"mindb":null}]'
    > b = fromJSON(a)
    > b
          xmin     xmax     ymin     ymax measures sum mean variance stdev count
    1 51.90607 51.90643 4.468435 4.469002     NULL   0   NA        0     0     0
    2 51.90607 51.90643 4.469002 4.469570     NULL   0   NA        0     0     0
    3 51.90607 51.90643 4.469570 4.470138     NULL   0   NA        0     0     0
    4 51.90607 51.90643 4.470138 4.470705     NULL   0   NA        0     0     0
      maxdb mindb
    1    NA    NA
    2    NA    NA
    3    NA    NA
    4    NA    NA

将JSON数据导入Rstudio

1 个答案: