table(airquality$Month,airquality$Day)(得到二维的表) any(is.na(airquality$Ozone))(如果返回的是TRUE,就说明一定有缺失值) sum(is.na(airquality$Ozone))(臭氧含量中有多少缺失值) all(airquality$Month<12)(是不是所有的月份都小于12) titanic<-as.data.frame(Titanic) ...
bfi<-na.omit(bfi)bfi$Agreeableness<-bfi$A1+bfi$A2+bfi$A3+bfi$A4+bfi$A5bfi$Conscientiousness<-bfi$C1+bfi$C2+bfi$C3+bfi$C4+bfi$C5bfi$Extraversion<-bfi$E1+bfi$E2+bfi$E3+bfi$E4+bfi$E5bfi$Neuroticism<-bfi$N1+bfi$N2+bfi$N3+bfi$N4+bfi$N5bfi$Openness<-bfi$O1+bfi$O2+bfi$O3+bfi$O...
I encounter this problem too with the following example: library(data.table) dt <- expand.grid( date = 1:10, time = 1:10, id = 1:5 ) setDT(dt, key = c("date", "time", "id")) dt[, x := runif(.N)] dt[time == 1, x1 := shift(x, type = "lead"...
nams( table(vpoype, useNA = "ifany") ) ort( rond( x = prop.tbl( x = tae(vpst$type,eNA = "ifany") ),digis = 4) ) dott(x = sort(t), xlim = c(-0.05, 1.05), cex = 1.5) t = prole( x = table(ts$type[ !is.(vposs$type) ], usNA = "ifany") ) dolot(x 接...
For example, to add a new data analysis step implemented in the R language as an actor, one only has to instantiate the generic R actor accordingly. This specialized R actor instance can then be stored as a new actor. Other ways to add new actors to Kepler include, e.g., instantiation...
cancers Article SP1 and STAT3 Functionally Synergize to Induce the RhoU Small GTPase and a Subclass of Non-canonical WNT Responsive Genes Correlating with Poor Prognosis in Breast Cancer Emanuele Monteleone 1,† , Valeria Orecchia 1,†, Paola Corrieri 1, Davide Schiavone 1,‡, Lidia Avalle...
Average normal pediatric daily requirements are based on the child’s weight as described in the table below: Weight Fluid Requirements Up to 10 kg 100 mL/kg 11 to 20 kg 1,000 mL + 50 mL/kg for each kg above 10 kg Above 20 kg 1,500 mL + 20 mL/kg for each kg above 20 ...
Step 3: R Studio automatically opens the ‘rain’ dataset as a table in a new tab. R Studio also provides the snippet of code it used to import the data, which is great! You can copy that code and paste it into your R script file for future use. That’s it! You’re a pro at...
38 Chapter 1 Getting Started With R Table 1.1 Some R functions for basic statistical methods. All functions are in the standard R packages; chapter references are to this Companion. Method R Function(s) Reference histogram stem-and-leaf display boxplot scatterplot time-series plot mean median ...
TAKE A BOATING EDUCATION COURSE Those persons born on or after January 1, 1978 must take an approved boating educa- tion course before operating a motorized vessel, to include personal watercraft (PWC). Contact the Office of Boating Safety & Education for more information on taking a classroom ...