Created
February 11, 2015 15:59
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dplyr group_by needs ungroup() to get expected behavior
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| DF_SQL_BY_SNAPID.top_sql.sd.elap <- DF_SQL_BY_SNAPID %>% | |
| group_by(PARSING_SCHEMA_NAME,SQL_ID,COMMAND_NAME) %>% | |
| summarise( | |
| elapsed.avg=mean(ELAP_S), | |
| elapsed.stddev=sd(ELAP_S) | |
| ) %>% | |
| ungroup() %>% | |
| arrange(desc(elapsed.stddev)) %>% | |
| head(30) |
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