search for: ymz7

Displaying 3 results from an estimated 3 matches for "ymz7".

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2008 May 29
1
Joining uneven datasets
Hello, I have quite a simple problem that I believe can be solved quite easily. I have a dataframe as such: Symbol Date Time Exchange TickType ReferenceNumber Price Size 1 3:YMZ7.EC 12/03/2007 08:30:00 EC B 83916044 13387 9 2 3:YMZ7.EC 12/03/2007 08:30:00 EC A 83916045 13388 1 3 3:YMZ7.EC 12/03/2007 08:30:00 EC B 83916054 13387 9 4 3:YMZ7.EC 12/03/2007 08:30:00 EC A 83916055 13388 1...
2008 May 29
3
Manipulating DataSets
Hello R-Users, I am new to R and trying my best however I need help with this simple task. I have a dataset, YM1207. X.Symbol Date Time Exchange TickType ReferenceNumber Price Size 12491 3:YMZ7.EC 12/03/2007 08:32:50 EC B 85985770 13379 7 12492 3:YMZ7.EC 12/03/2007 08:32:50 EC A 85985771 13380 4 12493 3:YMZ7.EC 12/03/2007 08:32:50 EC T 85985845 13379 1 12494 3:YMZ7.EC 12/03/2007 08:32:50...
2008 Jun 06
6
Subsetting to unique values
I want to take the first row of each unique ID value from a data frame. For instance > ddTable <- data.frame(Id=c(1,1,2,2),name=c("Paul","Joe","Bob","Larry")) I want a dataset that is Id Name 1 Paul 2 Bob > unique(ddTable) Will give me all 4 rows, and > unique(ddTable$Id) Will give me c(1,2), but not accompanied by the name column.