geom_edge_loop() + geom_node_circle(aes(r=0.1), fill = "orange") + geom_node_text(aes(label = colnames(adj_mat))) + theme(aspect.ratio = 1)
library(tidytext) #package for tidy text analysis (Check out Julia Silge's fab book!) library(glue) #for pasting strings library(data.table) #for rbindlist, a faster version of rbind # now let's read in some data & put it...
for(i in 2:ncol(data)) { # Printing ggplot within for-loop print(ggplot(data, aes(x = x, y = data[ , i])) + geom_point()) Sys.sleep(2) }Figure 2: Showing ggplot2 Plots within for-Loop using print() Function.After running the previous R code, you will see three ggplot2 ...
All types of vectors can be named. Names are useful for writing readable code and describing objects in R. You can name the elements of a vector with thenames()function. As an example, let’s assign the variable x to a new vector with three elements. x<-c(1,3,5) You can use the...
keys <- "#nlp, #machinelearning, #datascience, #chatbots, #naturallanguageprocessing, #deeplearning" 定义了关键字之后, 就该定义推文流循环了。有几种方法可以做到这一点, 但是这种格式过去对我来说效果很好: # Initialize the streaming hour tally ...
Pro Tip:CSS selectors are the secret language of web scraping success. Before going further, make sure you understand how to precisely target HTML elements with ourcomprehensive CSS Selectors guide. This skill is absolutely essential for writing efficient and maintainable scrapers!
Fortunately, the R programming language provides us with a function that helps us to deal with such missing data: the is.na function.In the following article, I’m going to explain what the function does and how the function can be applied in practice....
SQLite looks up the corresponding entry in the demo_data table. It then uses the boundary field from the demo_data table as a parameter to the contained_in() function and if that function returns true, the objname field from the demo_data table is returned as the next row of query resu...
service_level: Calculates the service level. The inputs are the same as above plus the period for the Grade of Service in seconds. resource: Seeks the number of agents needed to meet a Grade of Service. This function starts with the minimum number of agents (the intensity plus one agent)...
The Tidy version requires two function calls rather than one for base-R. The Tidy code is a bit wordier, and requires that one do an assignment (too3). All in all,the base-R version is simpler, and thus easier for noncoder beginners. ...