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rxtsdygraphs

"coredata.xts(x) : currently unsupported data type" when creating an xts object


I have been able to create an xts object in the past with basic tables consisting of floats and dates in the POSIX format. Yet I have no idea why the xts function is throwing an error on this type of data. Here is a sample of it

enter image description here

carries on with 0s until this kind of data

enter image description here

My code simply goes as follow

graph <- xts(sample$data, order.by = sample$date)
dygraph(graph)

And would throw the error I specified in the title of the topic. I am slightly confused as to why that is.

Edit: rescaling with dput for test purposes:

structure(list(data = list(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
    0, 0, 0, 0, 0, 0, 0, 0), date = structure(c(1543434776.963, 
1542820106.015, 1543615640.482, 1543851212.862, 1543854217.269, 
1543930726.949, 1544030657.079, 1544034770.003, 1544043898.003, 
1544457518.498, 1544460092.511, 1544467414.991, 1544470840.541, 
1544628952.371, 1544473221.584, 1544631972.069, 1544646951.827, 
1544645607.091, 1542833838.068, 1542819507.303), class = c("POSIXct", 
"POSIXt"))), row.names = c(NA, 20L), class = "data.frame")

Solution

  • The column 'data' is list (checked by str(sample)), unlist it to a vector and it should work

    library(xts)
    xts(unlist(sample$data), order.by = sample$date)
    #                     [,1]
    #2018-11-21 11:58:27    0
    #2018-11-21 12:08:26    0
    #2018-11-21 15:57:18    0
    #2018-11-28 14:52:56    0
    #2018-11-30 17:07:20    0
    #2018-12-03 10:33:32    0
    #2018-12-03 11:23:37    0
    #2018-12-04 08:38:46    0
    #2018-12-05 12:24:17    0
    #2018-12-05 13:32:50    0
    #2018-12-05 16:04:58    0
    #2018-12-10 10:58:38    0
    #2018-12-10 11:41:32    0
    #2018-12-10 13:43:34    0
    #2018-12-10 14:40:40    0
    #2018-12-10 15:20:21    0
    #2018-12-12 10:35:52    0
    #2018-12-12 11:26:12    0
    #2018-12-12 15:13:27    0
    #2018-12-12 15:35:51    0