search for: highfrequ

Hello, My programming is as follows. library(highfrequency) library(data.table) library(xts) tm<-seq.POSIXt(from = as.POSIXct("2020-08-20 09:30:00"),to = as.POSIXct("2020-08-20 15:59:00"),by='min') data<-xts(x=data$PRICE,order.by=tm) data <- as.data.table(data) setnames(data,c('index'),c('DT')) setna...

...uite often (e.g. if several security data is batched together or if only a certain time range should be considered) - the package needs to handle this. Before I start, I would like to mention some facts which made me decide to construct an own package instead of using e.g. the packages bigmemory, highfrequency, zoo or xts: AFAIK big memory does not provide the opportunity to handle data with different types (timestamp, string and numerics) and their appropriate sorting, for this task databases offer better tools. Package highfrequency is designed to work specifically with a certain data structure and...

Is there a text mining/ NLP package in R that could do text summarization? For example, take a huge text as input and provide a summary of the text. In package tm, summarization is defined more as high frequency terms which is not what I want. I actually want a summary of what is present in the huge volume of text. Any help on a R package would be helpful. Thank you. Ravi -- View this message