Google R GTrendsR的趋势

Question

I'm trying to use GTrendsR but is not working. This is what I run

library(devtools)
#install_bitbucket("GTrendsR", "persican")
library(GTrendsR)
usr = "my gmail"
psw = "my password"
ch = gConnect(usr, psw)

location = "all"
query = "MOOCs"
MOOCs_trends = gTrends(ch, geo = location, query = query)
MOOCs_trends$SearchInfo

Everything seems to work but the last line gives me "NULL"

What am i doing wrong?

Thanks!

Answer 1

It's because there's an error in the package where they aren't naming the columns in the dataframe. I ran the same code and get

> names(MOOCs_trends)
[1] ""    ""    ""    ""    "GEO"

But when you do:

>head(MOOCs_trends)
[[1]]
                   Week moocs
1   2004-01-04 - 2004-01-10     0
2   2004-01-11 - 2004-01-17     0
3   2004-01-18 - 2004-01-24     0

It works like it should. So the data is coming back. A short term fix would be to access the list with numeric indices. Just do:

> MOOCs_trends[[1]]

etc... to access the different slots of data. It will take a quick code fix I'm sure to get the names right. Alternatively you could add them yourself, but I'd suggest waiting for a code fix so future scripts don't break.