duplicates

问题 Is there a way to recursively find duplicate files in an Amazon S3 bucket? In a normal file system, I would simply use: fdupes -r /my/directory 回答1: There is no "find duplicates" command in Amazon S3. However, you do do the following: Retrieve a list of objects in the bucket Look for objects that have the same ETag (checksum) and Size They would (extremely likely) be duplicate objects. 回答2: Here's a git repository: https://github.com/chilts/node-awssum-scripts which has a js script file to

问题 Is there a way to recursively find duplicate files in an Amazon S3 bucket? In a normal file system, I would simply use: fdupes -r /my/directory 回答1: There is no "find duplicates" command in Amazon S3. However, you do do the following: Retrieve a list of objects in the bucket Look for objects that have the same ETag (checksum) and Size They would (extremely likely) be duplicate objects. 回答2: Here's a git repository: https://github.com/chilts/node-awssum-scripts which has a js script file to

问题 Using this method on a 8x8 matrix: >> [junk,index] = unique(data,'first'); %# Capture the index, ignore junk >> data(sort(index)) %# Index data with the sorted index Outputs the format in 64x1 format (if no repeats are found) or nx1 if some repeats are found. My question is how do I keep the matrix format without the sorting? i need it to check unique(rows) for duplicates not unique cells. And to delete the duplicate rows but keep the format (dont arrange/sort). 回答1: If you want unique rows,

问题 Let's say I have a table that has dates and a value for each date (plus other columns). I can find the rows that have the same value on the same day by using data.duplicated(subset=["VALUE", "DAY"], keep=False) Now, say that I want to allow for the day to be off by 1 or 2, and the value to be off by up to 10, how do I do it? Example: DAY MTH YYY VALUE NAME 22 9 2016 8.25 John 22 9 2016 43 John 6 11 2016 28.25 Mary 2 10 2016 50 George 23 11 2016 90 George 23 10 2016 30 Jenn 24 8 2016 10 Mike

问题 I have an object called FormObject that contains two ArrayLists - oldBooks and newBooks - both of which contain Book objects. oldBooks is allowed to contain duplicate Book objects newBooks is not allowed to contain duplicate Book objects within itself and cannot include any duplicates of Book objects in the oldBooks list. The definition of a duplicate Book is complex and I can't override the equals method as the definition is not universal across all uses of the Book object. I plan to have a

问题 I have an object called FormObject that contains two ArrayLists - oldBooks and newBooks - both of which contain Book objects. oldBooks is allowed to contain duplicate Book objects newBooks is not allowed to contain duplicate Book objects within itself and cannot include any duplicates of Book objects in the oldBooks list. The definition of a duplicate Book is complex and I can't override the equals method as the definition is not universal across all uses of the Book object. I plan to have a

问题 Let me first say that being able to take 17 million records from a flat file, pushing to a DB on a remote box and having it take 7 minutes is amazing. SSIS truly is fantastic. But now that I have that data up there, how do I remove duplicates? Better yet, I want to take the flat file, remove the duplicates from the flat file and put them back into another flat file. I am thinking about a: Data Flow Task File source (with an associated file connection) A for loop container A script container

问题 Let me first say that being able to take 17 million records from a flat file, pushing to a DB on a remote box and having it take 7 minutes is amazing. SSIS truly is fantastic. But now that I have that data up there, how do I remove duplicates? Better yet, I want to take the flat file, remove the duplicates from the flat file and put them back into another flat file. I am thinking about a: Data Flow Task File source (with an associated file connection) A for loop container A script container

问题 Let me first say that being able to take 17 million records from a flat file, pushing to a DB on a remote box and having it take 7 minutes is amazing. SSIS truly is fantastic. But now that I have that data up there, how do I remove duplicates? Better yet, I want to take the flat file, remove the duplicates from the flat file and put them back into another flat file. I am thinking about a: Data Flow Task File source (with an associated file connection) A for loop container A script container

问题 I have a dataset that looks something like this: df <- structure(list(Claim.Num = c(500L, 500L, 600L, 600L, 700L, 700L, 100L, 200L, 300L), Amount = c(NA, 1000L, NA, 564L, 0L, 200L, NA, 0L, NA), Company = structure(c(NA, 1L, NA, 4L, 2L, 3L, NA, 3L, NA), .Label = c("ATT", "Boeing", "Petco", "T Mobile"), class = "factor")), .Names = c("Claim.Num", "Amount", "Company"), class = "data.frame", row.names = c(NA, -9L)) I want to remove duplicate rows based on Claim Num values, but to remove