Error in FUN(X[[i]], ...) : cannot open the connection

[赢家黄氏江夏堂，联富]

I try to run the sample code, but there has connection error... Linking R to IQFeed with the QuantTools package Get Started

> library( QuantTools )
Loading required package: data.table
data.table 1.10.4
  The fastest way to learn (by data.table authors): https://www.datacamp.com/courses/data-analysis-the-data-table-way
  Documentation: ?data.table, example(data.table) and browseVignettes("data.table")
  Release notes, videos and slides: http://r-datatable.com
> Rcpp::evalCpp( code = '2 + 2' )
[1] 4
> symbols = c('GBPUSD.FXCM','EURUSD.FXCM' )
> path = paste( path.expand('~') , 'Market Data', 'iqfeed', sep = '/' )
> start_date = '2016-01-01'
> 
> settings = list(
+     iqfeed_storage = path,
+     iqfeed_storage_from = start_date,
+     iqfeed_symbols = symbols
+ )
> QuantTools_settings( settings )

> 
> store_iqfeed_data()
GBPUSD.FXCM
not found in storage, 
trying to download since storage start date
Error in FUN(X[[i]], ...) : cannot open the connection
In addition: Warning message:
In FUN(X[[i]], ...) : localhost:9100 cannot be opened

[Stanislav Kovalevsky]

Not reproduced. Seems like IQFeed client not running or has different lookup port settings. Please check IQFeed client and test if below is working:

## Generic parameters 
library(QuantTools) 
from = '2016-01-01'
to = '2016-06-01'
symbol = 'SPY'

## Request data 
get_iqfeed_data(symbol, from, to) 

[赢家黄氏江夏堂，联富]

> ## Generic parameters 
> library(QuantTools) 
> from = '2016-01-01'
> to = '2016-06-01'
> symbol = 'SPY'
> 
> ## Request data 
> get_iqfeed_data(symbol, from, to) 
Error in FUN(X[[i]], ...) : cannot open the connection
In addition: Warning message:
In FUN(X[[i]], ...) : localhost:9100 cannot be opened

[Stanislav Kovalevsky]

Have you installed iqfeed client on your system? have you changed its default settings? Does Iqfeed watchquote work?

[赢家黄氏江夏堂，联富]

I tried to download and install DOWNLOAD IQFEED CLIENT, but the account seems chargable to register... by the way, will the QuantTools::Order() function will place order in real account via API ?

> ## Generic parameters 
> library(QuantTools) 
> from = '2016-01-01'
> to = '2016-06-01'
> symbol = 'SPY'
> 
> ## Request data 
> get_iqfeed_data(symbol, from, to)
Error in FUN(X[[i]], ...) : cannot open the connection
In addition: Warning message:
In FUN(X[[i]], ...) : localhost:9100 cannot be opened

[Stanislav Kovalevsky]

Yes, IQFeed is not a free service. At the moment QuantTools works only in simulation mode.

[Dhruvin Shah]

What if I try to use Finam data instead of IQfeed? Can Quanttools store the data with google or Yahoo data source? I am using a trial version of IQFeed. And when i tried to code with IQfeed settings, the code didnt seem to run as the IQFeed software was really buggy.

Commenting here as I got the same error which you have marked invalid. @quanttools