duplicates

问题 I have a dataframe where I would like to concatenate certain columns. My issue is that the text in these columns may or may not contain duplicate information. I would like to strip out the duplicates in order to retain only the relevant information. For example, if I had a data frame such as: Animal1 Animal2 Label 1 cat dog dolphin 19 2 dog cat cat 72 3 pilchard 26 koala 26 4 newt bat 81 bat 81 You can see that in row 2, 'cat' is contained in both columns 'Animal1' and 'Animal2'. In row 3,

问题 I have a variable data a array of objects. Now I want to check if there a duplicates values except 0. What I've done so far is the code snippet below: The alert shows me true it should be false cause 0 is not included for checking. Please help. Thanks var data = [{id: 0}, {id: 1}, {id: 3}, {id: 0},]; var checkdata= data.map(function(item){ return item.id }); var isDuplicatedata= checkdata.some(function(item, idx){ return checkdata.indexOf(item) != idx }); alert(isDuplicatedata) 回答1: Object

问题 I've followed the examples listed in the documentation here: http://wiki.apache.org/solr/Deduplication and https://cwiki.apache.org/confluence/display/solr/De-Duplication However, when analyzing the results every signatureField gets returned like so: 0000000000000000 I can't seem to figure out why a unique signature isn't being generated. Relevant config sections: solrconfig.xml <requestHandler name="/update" class="solr.XmlUpdateRequestHandler"> <!-- See below for information on defining

问题 I have a table which looks like this: mysql> SELECT * FROM Colors; ╔════╦══════════╦════════╦════════╦════════╦════════╦════════╦════════╗ ║ ID ║ USERNAME ║ RED ║ GREEN ║ YELLOW ║ BLUE ║ ORANGE ║ PURPLE ║ ╠════╬══════════╬════════╬════════╬════════╬════════╬════════╬════════╣ ║ 1 ║ joe ║ 1 ║ (null) ║ 1 ║ (null) ║ (null) ║ (null) ║ ║ 2 ║ joe ║ 1 ║ (null) ║ (null) ║ (null) ║ 1 ║ (null) ║ ║ 3 ║ bill ║ 1 ║ 1 ║ 1 ║ (null) ║ (null) ║ 1 ║ ║ 4 ║ bill ║ (null) ║ 1 ║ (null) ║ 1 ║ (null) ║ (null) ║ ║ 5

问题 My script for plotting creates two legends for each label. I do not know how to make legend() not duplicate. I checked on stackoverflow and found two methods. But I could not implement them here. Any ideas? Matplotlib: Don't show errorbars in legend Stop matplotlib repeating labels in legend symbols = [u'\u2193'] #Plotting our vsini values for i, symbol in enumerate(symbols): for x0,y0 in zip(vsini_slit_cl, vsini_slit): plt.text(x0,y0, symbol, fontname='STIXGeneral', size = 10, va='center',

问题 Let's say I have a MySQL table with four columns: ID DRIVER_ID CAR_ID NOTES (NULL for most rows) I have a bunch of duplicate rows where DRIVER_ID and CAR_ID are the same. For each pair of DRIVER_ID and CAR_ID, I want one row. If one of the rows in the set has non-NULL NOTES, I want that one, but otherwise it doesn't matter. so if I have: ID | DRIVER_ID | CAR_ID | NOTES 1 1 1 NULL 2 1 1 NULL 3 1 2 NULL 4 1 2 NULL 5 2 3 NULL 6 2 3 NULL 7 2 3 NULL 8 2 3 hi 9 3 5 NULL I want to keep the following

问题 I have a 2-column data in Excel that looks like this: The first column is a value, and the Second column contains a corresponding word. However, I want to remove rows in this dataset such that, in the end, for each unique word in Column two, only one row is retained for which the value in the Column one is the largest for that word, removing even those rows having duplicates of the largest value for each unique word and leaving one row for each unique word. 2 cat 2 cat 1 cat 3 dog 2 dog 1 dog

问题 I have this table, and i would like a SELECT to exclude the lines marked. The general rule would be: IF there are two or more lines where the controlname AND brandname AND grouptypes columns are equal THEN keep the row where groupname is NOT 'Keine Zuordnung'. CONTROLNAME BRANDNAME GROUPTYPES GROUPNAME ECU AUDI VERNETZER 1 ECU AUDI VERNETZER Keine zuordnung <--THIS ECU AUDI FUSI Keine zuordnung <--THIS ECU AUDI FUSI 2 ECU2 AUDI FACHANWENDER Keine zuordnung ECU3 AUDI FACHANWENDER Keine

问题 I have this table, and i would like a SELECT to exclude the lines marked. The general rule would be: IF there are two or more lines where the controlname AND brandname AND grouptypes columns are equal THEN keep the row where groupname is NOT 'Keine Zuordnung'. CONTROLNAME BRANDNAME GROUPTYPES GROUPNAME ECU AUDI VERNETZER 1 ECU AUDI VERNETZER Keine zuordnung <--THIS ECU AUDI FUSI Keine zuordnung <--THIS ECU AUDI FUSI 2 ECU2 AUDI FACHANWENDER Keine zuordnung ECU3 AUDI FACHANWENDER Keine

问题 Reason: I was assigned to run some script that advances a website,it's a fantasy football site and there are several instants of the site located into different domains. Some has more than 80k users and each users supposed to have a team that consists of 15 players. Hence some tables have No.users x No.players rows. However Sometimes the script fails and the result gets corrupted, therefore I must backup 10 tables in question before i execute the script. Nevertheless, I still need to backup