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31 lines
409 B
31 lines
409 B
---
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title: "duplicate check"
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author: "Scary Scarecrow"
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date: '2022-06-06'
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output: html_document
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---
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```{r setup, include=FALSE}
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knitr::opts_chunk$set(echo = TRUE)
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library(dplyr)
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```
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# Duplicates
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```{r}
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dat<-read.csv("contactdup.csv")
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dat |>
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filter(duplicated(cbind(EMail,First_Name,Last_Name))) |> write.csv("duplicatecontacts.csv")
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```
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```{r}
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dat |>
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filter(EMail=="office@lahnerbau.at")
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```
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