摘要: 登录系统时如果出现 “验证失败”,或者,无法登陆系统,请修改服务器端IP地址,修改方法如下: 注意: (1)修改服务器端IP地址时,要提前关闭/退出客户端。建议也看看“Windows的任务管理器”中是否有 jwgl 开头的进程,如果有,请结束该进程,再做其他操作。 (2)打开“Windows的任务管阅读全文
posted @ 2014-05-27 09:23 emanlee 阅读(5786) 评论(0) 编辑
摘要: http://www.cnblogs.com/emanlee/p/3426869.html bio360 http://www.bio360.net/channel/7 http://www.bio1000.com/news/ http://www.ebiotrade.com/newsf/ http阅读全文
posted @ 2013-09-22 09:07 emanlee 阅读(1258) 评论(0) 编辑
摘要: Linux tail command Updated: 05/21/2018 by Computer Hope About tail Syntax Examples ▸ Related commands ▸ Linux and Unix commands help Syntax Examples ▸阅读全文
posted @ 2018-07-22 23:22 emanlee 阅读(40) 评论(0) 编辑
摘要: a = c(175, 168, 168, 190, 156, 181, 182, 175, 174, 179)b = c(185, 169, 173, 173, 188, 186, 175, 174, 179, 180)x<-t.test(a,b)str(x)class(x)> str(x)List阅读全文
posted @ 2018-07-01 11:30 emanlee 阅读(28) 评论(0) 编辑
摘要: Treat it as a data.frame:set.seed(1)x <- sample(30, 100, TRUE)summary(x)# Min. 1st Qu. Median Mean 3rd Qu. Max. # 1.00 10.00 15.00 16.03 23.25 30.00 s阅读全文
posted @ 2018-06-30 02:21 emanlee 阅读(17) 评论(0) 编辑
摘要: a = matrix( c(2, 4, 3, 1, 5, 7), # the data elements nrow=2, # number of rows ncol=3, # number of columns byrow = TRUE) # fill matrix by rows class( (阅读全文
posted @ 2018-05-25 02:12 emanlee 阅读(26) 评论(0) 编辑
摘要: require(reshape2)x = data.frame(subject = c("John", "Mary"), time = c(1,1), age = c(33,NA), weight = c(90, NA), height = c(2,2))x subject time age wei阅读全文
posted @ 2018-05-08 04:59 emanlee 阅读(28) 评论(0) 编辑
摘要: read.csv in R doesn't import all rows from csv file The OP indicates that the problem is caused by quotes in the CSV-file. When the records in the CSV阅读全文
posted @ 2018-05-04 21:48 emanlee 阅读(27) 评论(0) 编辑
摘要: union 求两个向量的并集集合可以是任何数值类型union(x=1:3, y=2:5)[1] 1 2 3 4 5union(x=c("abc", "12"), y=c("bcd", "efg"))[1] "abc" "12" "bcd" "efg"setdiff 求向量x与向量y中不同的元素(只取阅读全文
posted @ 2018-04-29 10:04 emanlee 阅读(34) 评论(0) 编辑
摘要: Examples: print(match(5, c(1,2,9,5,3,6,7,4,5)))[1] 4 5 %in% c(1,2,9,5,3,6,7,4,5)[1] TRUE 8 %in% c(1,2,9,5,3,6,7,4,5)[1] FALSE > v1 <- c("a1","b2","c1"阅读全文
posted @ 2018-04-28 04:27 emanlee 阅读(42) 评论(0) 编辑
摘要: I think I get what you mean. Let's say for example you want the right-most \ in the following string (which is stored in cell A1): Drive:\Folder\SubFo阅读全文
posted @ 2018-04-25 06:41 emanlee 阅读(24) 评论(0) 编辑
摘要: REF: https://stackoverflow.com/questions/16391208/print-a-files-last-modified-date-in-bash阅读全文
posted @ 2018-04-25 04:59 emanlee 阅读(31) 评论(0) 编辑