grouping

问题 Let say I have the folowwing table : Client Sales A 1000 A 100 A 10 B 1000 B 10 C 1 I would like to add another column Names TotalClient at the end which would the new table look like this : Client Sales Total A 1000 1110 A 100 1110 A 10 1110 B 1000 1010 B 10 1010 C 1 1 Is this possible either in DAX or in the query editor ? I tried many ways, but still can't figure out how. I was able to get information I needed using the SUMMARIZE function to get another table, but I run into other problem

问题 Let say I have the folowwing table : Client Sales A 1000 A 100 A 10 B 1000 B 10 C 1 I would like to add another column Names TotalClient at the end which would the new table look like this : Client Sales Total A 1000 1110 A 100 1110 A 10 1110 B 1000 1010 B 10 1010 C 1 1 Is this possible either in DAX or in the query editor ? I tried many ways, but still can't figure out how. I was able to get information I needed using the SUMMARIZE function to get another table, but I run into other problem

问题 I have dataset that looks like this: Category Weekly_Date a b <chr> <date> <dbl> <dbl> 1 aa 2018-07-01 36.6 1.4 2 aa 2018-07-02 5.30 0 3 bb 2018-07-01 4.62 1.2 4 bb 2018-07-02 3.71 1.5 5 cc 2018-07-01 3.41 12 ... ... ... ... ... I fitted linear regression for each group separately: fit_linreg <- train %>% group_by(Category) %>% do(model = lm(Target ~ Unit_price + Unit_discount, data = .)) Now I have different models for each category: aa model1 bb model2 cc model3 So, I need to apply each

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . Improve this question I'd like an algorithm to put people into groups for an upcoming conference. There's lots of people going, from different regions, departments, genders etc, and they want to split people up as much as possible so get diversity in each group. So is there either a

问题 Can a groupingBy operation on a stream produce a map where the values are arrays rather than lists or some other collection type? For example: I have a class Thing . Things have owners, so Thing has a getOwnerId method. In a stream of things I want to group the things by owner ID so that things with the same owner ID end up in an array together. In other words I want a map like the following where the keys are owner IDs and the values are arrays of things belonging to that owner. Map<String,

问题 Can a groupingBy operation on a stream produce a map where the values are arrays rather than lists or some other collection type? For example: I have a class Thing . Things have owners, so Thing has a getOwnerId method. In a stream of things I want to group the things by owner ID so that things with the same owner ID end up in an array together. In other words I want a map like the following where the keys are owner IDs and the values are arrays of things belonging to that owner. Map<String,

问题 So i'm attempting to convert a csv file to XML that contains 5 columns: UserID;Cert;LastCertDate;ExpireDate;CertNumber 100001;oka;09.09.2018;09.09.2019;100001 100001;pik;10.10.2018;10.10.2019;200001 The XML structure should be as the following: <Cv> <Owner> <UserID></UserID> </Owner> <Content> <Certificates> <Certificate> <Cert>oka</Cert> <LastCertDate>09.09.2018</LastCertDate> <ExpireDate>09.09.2019</ExpireDate> <CertNumber>100001</CertNumber> </Certificate> <Certificate> <Cert>pik</Cert>

问题 I have a list of dicts: my_list = [ {'name': 'AAA', 'date': '2018-05-14', 'price': 20.0}, {'name': 'AAA', 'date': '2018-05-15', 'price': 22.0}, {'name': 'AAA', 'date': '2018-05-16', 'price': 30.0}, {'name': 'BBB', 'date': '2018-05-14', 'price': 15.0}, {'name': 'BBB', 'date': '2018-05-15', 'price': 32.0} ] My question is how can I iterate over that list to produce a list in this format? parsed_list = [ {'name': 'AAA', 'data': [['2018-05-14', 20.0], ['2018-05-15', 22.0], ['2018-05-16', 30.0]]},

问题 Imagine a simple object with 3 attributes: public class Obj { boolean toBeAdded; String type; int order; public Obj(boolean toBeAdded, String type, int order) { this.toBeAdded = toBeAdded; this.type = type; this.order = order; } public boolean isToBeAdded() { return toBeAdded; } public String getType() { return type; } public int getOrder() { return order; } } Imagine I have a List of several Obj s, with different types: import java.util.Arrays; import java.util.List; public class Utils {

问题 I have a person object with personId, age and gender. public class Person { private int personId; private int age; private int gender; // 0 for male and 1 for female } List<Person> person = new Arraylist<>(); person.add(new Person(1,1,1)); person.add(new Person(2,2,0)); person.add(new Person(3,10,1)); person.add(new Person(4,11,0)); person.add(new Person(5,20,1)); person.add(new Person(6,20,1)); person.add(new Person(7,2,0)); person.add(new Person(8,20,0)); person.add(new Person(9,11,0));