Hello everyone,
For starters, I want to thank Dirk and Ilya for helping me. Following
Dirk's suggestion, I'll try to describe the objective better and post a MWE
next.
The main objective is to define a data frame that has all exchanges
available along with the intervals each one of them the provide.
Sys.setenv(TZ = "America/Sao_Paulo")
library(lubridate)
library(dplyr)
library(svDialogs)
library(stringr)
library(tidyverse)
library(rvest)
library(RCurl)
library(reprex)
library(tibble)
library(quantmod)
library(cryptoQuotes)
library(crypto2)
library(cryptotrackr)
library(coinmarketcapr)
exchanges.names <- c('binance', 'bitmart', 'bybit', 'crypto.com', 'huobi',
'kraken', 'kucoin', 'mexc')
intervals <- list(list('1s', '1m', '3m', '5m', '15m', '30m', '1h', '2h',
'4h', '6h', '8h', '12h', '1d', '3d', '1w', '1M'),
list('1m', '3m', '5m', '15m', '30m', '1h', '2h',
'4h', '6h', '12h', '1d', '3d', '1w'),
list('1m', '3m', '5m', '15m', '30m', '1h', '2h', '4h',
'6h', '12h', '1d', '1M', '1w'),
list('1m', '5m', '15m', '30m', '1h', '2h', '4h', '12h',
'1d', '1w', '2w', '1M'),
list('1m', '5m', '15m', '30m', '1h', '4h', '1d', '1w',
'1M'),
list('1m', '5m', '15m', '30m', '1h', '4h', '12h', '1d',
'1w'),
list('1m', '5m', '15m', '30m', '1h', '2h', '4h', '8h',
'12h', '1d', '1w'),
list('1m', '5m', '15m', '30m', '1h', '4h', '8h', '1d',
'1w', '1M') )
exchanges.intervals <- as.data.frame(cbind(exchanges.names, intervals))
## filtering for the binance exchange, for example:
selected <- exchanges.intervals[exchanges.names == "binance", ]
This data is below,
> exchanges.names
[1] "binance" "bitmart" "bybit" "crypto.com" "huobi"
"kraken" "kucoin" "mexc"
> intervals
[[1]]
[[1]][[1]]
[1] "1s"
...
[[8]]
[[8]][[1]]
[1] "1m"
...
[[8]][[10]]
[1] "1M"
> exchanges.intervals
exchanges.names
intervals
1 binance 1s, 1m, 3m, 5m, 15m, 30m, 1h, 2h, 4h, 6h, 8h, 12h, 1d,
3d, 1w, 1M
2 bitmart 1m, 3m, 5m, 15m, 30m, 1h, 2h, 4h, 6h, 12h,
1d, 3d, 1w
3 bybit 1m, 3m, 5m, 15m, 30m, 1h, 2h, 4h, 6h, 12h,
1d, 1M, 1w
4 crypto.com 1m, 5m, 15m, 30m, 1h, 2h, 4h, 12h, 1d,
1w, 2w, 1M
5 huobi 1m, 5m, 15m, 30m, 1h, 4h,
1d, 1w, 1M
6 kraken 1m, 5m, 15m, 30m, 1h, 4h,
12h, 1d, 1w
7 kucoin 1m, 5m, 15m, 30m, 1h, 2h, 4h, 8h,
12h, 1d, 1w
8 mexc 1m, 5m, 15m, 30m, 1h, 4h, 8h,
1d, 1w, 1M
>
> exchanges.intervals[[2]][[1]]
[[1]]
[1] "1s"
...
[[4]]
[1] "5m"
...
[[16]]
[1] "1M"
>
> exchanges.intervals[exchanges.names == "binance", ]
exchanges.names
intervals
1 binance 1s, 1m, 3m, 5m, 15m, 30m, 1h, 2h, 4h, 6h, 8h,
12h, 1d, 3d, 1w, 1M
Assume I want the fourth interval from the binance exchange, which is 5
minutes or 5m.
How can I filter or select this data and assign it to a variable, please?
Of course it is quite easy to assign it result to a variable but I don't
know its first part.
I hope what I detailed above will help you.
--
André Luiz Tietbohl Ramos, PhD
On Sat, Feb 7, 2026 at 2:52 PM Dirk Eddelbuettel <[email protected]> wrote:
>
> Andre,
>
> You may find that may you get better answers if you "improve" your
> questions.
> One writeup on how to craft good 'minimally verifiable complete examples'
> (aka MVCE) ones is
>
>
> https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example
>
> which you may want to read (fully). A helpful command is `dput` as it
> allows
> you send (minimal, toy, still representative) data set along with it.
>
> C
>
> --
> dirk.eddelbuettel.com | @eddelbuettel | [email protected]
>
[[alternative HTML version deleted]]
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