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Hi everyone, Hi want to separate the string(column1) for example column1 column2 column3 column4 column5 column6 bear b e a r cat c a t tiger t i g e r I know how to do this in excel where using MID function. Now I want to solve it using R. The list of strings is in text file. I l...

...change the format 20JAN2000:00:00:00 to 20JAN2000 and exclude every row that date is different from 20. -extract the first character in COLUMN2 and creat COLUMN3 with that value ex: COL2,COL3 135,1 461,4 247,2 -in every row in which COL3=5, value in COLUMN4=value in COLUMN5 -create COLUMN7 where if COLUMN6="north" then COLUMN7 value="N" else COLUMN7 value="X" Ill be grateful for any help, thnks -- View this message in context: http://www.nabble.com/Some-SQL-Challenges-tp24795946p24795946.html Sent from the R help mailing list archive at Nabble.com.

# Hello # I have a question regarding pairwise calculations of a matrix using a "for-loop." # Below I have a matrix "X" with 8 columns. These are Genotypic data so Column1 & Column2 is # a unit, Column3 & Column4 is a unit, Column5 & Column6 is a unit, and Coulmn7 & 8 is a unit. # I have a loop designed to calculate the number of times an individual in Column"i" & Column"j" # has the same value and the same individual has two values that are the same in Column"k" & Column"l" . # I ha...

Hello, I have some files generated from microarray experiments. I used scan() to read the files, and assigned each file to a unique name with many rows and columns. Now I want to create a array (ArrayA) with unique names, and I can use ArrayA[1,2][[6]] to refer the data in each file. Is there any packages available for array of array? Thanks! [[alternative HTML version deleted]]

# Hello # I have a question regarding pairwise calculations of a matrix using a "for-loop." # Below I have a matrix "X" with 8 columns. These are genotypic data so Column1 & Column2 is # a unit, Column3 & Column4 is a unit, Column5 & Column6 is a unit, and Coulmn7 & 8 is a unit. # I have a loop designed to calculate the number of times an individual in Column"i" & Column"j" # has the same value and the same individual has two values that are the same in Column"k" & Column"l" . # I ha...