duplicates

I have a dataframe and want to eliminate duplicate rows, that have same values, but in different columns: df = pd.DataFrame(columns=['a','b','c','d'], index=['1','2','3']) df.loc['1'] = pd.Series({'a':'x','b':'y','c':'e','d':'f'}) df.loc['2'] = pd.Series({'a':'e','b':'f','c':'x','d':'y'}) df.loc['3'] = pd.Series({'a':'w','b':'v','c':'s','d':'t'}) df Out[8]: a b c d 1 x y e f 2 e f x y 3 w v s t Rows [1],[2] have the values {x,y,e,f}, but they are arranged in a cross - i.e. if you would exchange columns c,d with a,b in row [2] you would have a duplicate. I want to drop these lines and only keep

I have about 10000 replicates of a sample in a matrix. My matrix has 1000 rows and 6 columns. Numbers in the columns range from 0:58 depending on the sample. actual.prob <- c(.14, .14, .16, .13, .19, .24) million.rep <- replicate(10000, sample(1:6, 58, replace= T, actual.prob)) new.matrix <- matrix(nrow= 10000, ncol=6) for(i in 1:10000){ new.matrix[i,] <- as.vector(table(factor(million.rep[,i], levels=1:6))) } new.matrix[1:10,] [,1] [,2] [,3] [,4] [,5] [,6] [1,] 3 7 11 11 11 15 [2,] 7 6 12 5 19 9 [3,] 12 7 6 8 11 14 [4,] 6 7 16 6 11 12 [5,] 5 9 12 5 14 13 [6,] 9 4 14 7 10 14 [7,] 6 9 9 6 15 13

I have a database table with a unique constraint on it (unique (DADSNBR, DAROLEID) pair). I am going to be inserting multiple values into this table simultaneously, so I'd like to get it done using one query - I'm assuming this would be the faster way. My query is thus: INSERT ALL INTO ACCESS (DADSNBR, DAROLEID) VALUES (68, 1) INTO ACCESS (DADSNBR, DAROLEID) VALUES (68, 2) INTO ACCESS (DADSNBR, DAROLEID) VALUES (68, 3) INTO ACCESS (DADSNBR, DAROLEID) VALUES (68, 4) SELECT 1 FROM DUAL Since there are some entries within the statement that are duplicates of those already in the database, the

I have Set of that structure. I do not have duplicates but when I call: set.add(element) -> and there is already exact element I would like the old to be replaced. import java.io.*; public class WordInfo implements Serializable { File plik; Integer wystapienia; public WordInfo(File plik, Integer wystapienia) { this.plik = plik; this.wystapienia = wystapienia; } public String toString() { // if (plik.getAbsolutePath().contains("src") && wystapienia != 0) return plik.getAbsolutePath() + "\tWYSTAPIEN " + wystapienia; // return ""; } @Override public boolean equals(Object obj) { if(this == obj)

I have an array of values like [0.75, 0.0050000000000000001, 0.0050000000000000001, 0.0050000000000000001, 0.0050000000000000001, 0.0050000000000000001, 0.0040000000000000001, ...] and I need to remove the duplicates. I only want to focus on the first 3 digits after the decimal point. How do I do this? You can use NumberFormatter to fix the minimum and maximum fraction digits and use a set to filter the duplicate elements: let array = [0.75, 0.0050000000000000001, 0.0050000000000000001, 0.0050000000000000001, 0.0050000000000000001, 0.0050000000000000001, 0.0040000000000000001] let

How can I remove duplicate values within a comma separated list in PHP? I have 2 versions of a customer questionnaire - one is more detailed than the other - and in one they are asked the items they like and in the other they are asked to specify the items they like in ranked order. In this particular example, one of the columns ('items_like') may contain several values in a comma separated list. There are two other scenarios where each of the columns may contain several values in a comma separated list. In order to display a list of all the items a customer likes, I am concatenating the 4