search for: 201102

Hi, I have data frame like this: Product Price Year_Month PE A 100 201012 -2 A 98 201101 -3 A 97 201102 -2.5 B 110 201101 -1 B 100 201102 -2 B 90 201103 -4 How can I achieve the following result using R: Product Price Year_Month PE A 97 201102 -2.5 B...

HI, R-Users: I got a questions. have been struggling so long time.... I have this data: > m1$Year_Month 201009 201010 201011 201101 201102 > min(m1$Year_Month) 201009 I want to calculate the following two answers, how do I program it? > difference in Month????? [1] 0 1 2 4 5 >difference in Days????? 0 31 61 .... Thank you in advance!!! Tammy [[alternative HTML version deleted]]

...egexps for monthly, quarterly, semi-annually and annual regexps. One more example. Suppose I wanted to look at data semi-annually for 2010 through 2011. The regexps would be: "201001|201002|201003|201004|201005|201006" "201007|201008|201009|201010|201011|201012" "201101|201102|201103|201104|201105|201106" "201107|201108|201109|201110|201111|201112" I hope I have explained my problem clearly. Thanks much for your time, KW -- [[alternative HTML version deleted]]

...itor's price 1 201011 17583 469.03 NA NA 2 201012 33899 489.25 NA NA 3 201101 31306 488.42 NA NA 4 201102 21272 479.07 173 550 5 201103 24145 462.99 2684 548 6 201104 20763 433.87 4787 475 7 201105 25337...

...I have data similar to the following:   DF <- structure(list(X = 1:22, RESULT = structure(c(2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L), .Label = c("NEG", "POS"), class = "factor"), YR_MO = c(201011L, 201012L, 201101L, 201102L, 201103L, 201104L, 201105L, 201106L, 201107L, 201108L, 201109L, 201011L, 201012L, 201101L, 201102L, 201103L, 201104L, 201105L, 201106L, 201107L, 201108L, 201109L ), TOT_TESTS = c(66L, 98L, 109L, 122L, 113L, 111L, 113L, 146L, 124L, 130L, 120L, 349L, 393L, 376L, 371L, 396L, 367L, 406L, 383L, 394...