library(stringr) 10.2 字符串基础 # 创建字符串 string1 <- "This is a string" string2 <- 'To put a "quote" inside a string, use single quotes' 如果想要在字符串中包含一个单引号或双引号,可以使用 \ 对其进行“转义” double_quote <- "\"" # or '"' single_quote <- '\'' # or "...
str_commasep <- function(x, delim = ",") { n <- length(x) if (n == 0) { "" } else if (n == 1) { x } else if (n == 2) { # no comma before and when n == 2 str_c(x[[1]], "and", x[[2]], sep = " ") } else { # commas after all n - 1 elements...
recovered recovered message recovered signal recovered string recoverer recovering aid recovering deleted fi recover some lost gro recovery-level tracke recovery-readiness-le recovery and restart recovery area logging recovery arm enters a recovery capability recovery command recovery control recoverycontrolcente...
As a second exercise, I’d like to extract the family names from the names string. I believe that family membership could be a predictor of survival, i.e., if one family member survives, maybe the others are also more likely to survive, controlling for other...
matrix_normalizationStringMethod of normalizing the genome matrix before it is analyzed by NMF. Default is value is "gmm". Other options are, "log2", "custom" or "none". nmf_initStringThe initialization algorithm for W and H matrix of NMF. Options are 'random', 'nndsvd', 'nndsvda',...
When a combination of parameters are specified, connection parameters specified as named arguments take precedence over same-named connection parameters specified in the JSON string.DBI::dbDataType(teradatasql::TeradataDriver(), obj )Returns a string giving the SQL type name for obj.DBI::dbGetInfo...
Before doing the linear regression analysis, I created an eight-item, comma-delimited text file named DummyData.txt in directory C:\IntroToR with this content: XML Color,Length,Width,Rate blue, 5.4, 1.8, 0.9 blue, 4.8, 1.5, 0.7 blue, 4.9, 1.6, 0.8 pink, 5.0, 1....
minutesBefore integer Start of relevant time interval for query, substracted from 'time' parameter. Minutes after minutesAfter string End of relevant time interval for query, added to the 'time' parameter. Stop ID stopId True string Stop ID to query data for, such as 'BKK_F01227'. In...
Type:String[] Aliases:MemberList, MemList Position:0 Default value:None Required:False Accept pipeline input:True Accept wildcard characters:False -Confirm Prompts you for confirmation before running the cmdlet. Type:SwitchParameter Aliases:cf
static String DATE_STARTED Deprecated. Attribute ID for date started. static String DBCS_CAPABLE Deprecated. Attribute ID for DBCS capable. static String DECIMAL_FORMAT Deprecated. Attribute ID for decimal format. static String DECIMAL_FORMAT_COMMA_I Deprecated. Attribute value indicating the date...