tool
RISmed (library)
Chinese community actually did not let me introduce his incredible reason that I made a simple introduction.
installation
install.packages('RISmed')
use
library(RISmed)
- First we have to define a tag search:
search_tags = 'sleep'
You can then call the function of the very violence:
- EUtilsSummary
Usage
EUtilsSummary(query,type="esearch",db="pubmed",url=NULL,encoding="unknown",...)
Arguments
query
string query as given in NCBI search box
type
string indicating type of NCBI Eutility
db
string indicating the NCBI database used in query
url
string of url to bypass query construction
encoding
encoding to be assumed for input strings, see readLines
...
additional limits added to query
tips
Windows students pay attention encoding
Call EUtilsSummary
> search_query = EUtilsSummary(search_tags,retmax=100)
> summary(search_query)
Query:
"sleep"[MeSH Terms] OR "sleep"[All Fields]
Result count: 205279
query为search build:
“sleep”[MeSH Terms] OR “sleep”[All Fields]
retmax maximum number of documents crawled
After-treatment
pubmed_data = data.frame('Title' = ArticleTitle(records),'Abstract'=AbstractText(records))
pubmed_data$Abstract <- as.character(pubmed_data$Abstract)
pubmed_data$Abstract <- gsub(",", " ", pubmed_data$Abstract, fixed = TRUE)
> str(pubmed_data)
'data.frame': 99 obs. of 2 variables:
$ Title : Factor w/ 97 levels "A common hub for sleep and motor control in the substantia nigra.",..: 41 56 49 45 4 35 94 2 83 51 ...
$ Abstract: chr "BACKGROUND: Sleep apnoea is prevalent in dialysis patients. Previous studies identified excessive inflammation "| __truncated__ "AIMS: A large proportion of patients at memory disorders clinics are classified as having subjective cognitive "| __truncated__ "BACKGROUND: Despite the abundance of data documenting the consequences of poor sleep quality on blood pressure "| __truncated__ "Sleep difficulties are commonly reported by patients with epilepsy and can have a detrimental impact on overall"| __truncated__ ...
well done
