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Feb 18, 2019 6:41 AM
(1888 views)

Hi,

I have a dt with measurements of vital signs repeated three times at a visit for each subject.:

Subjects | Vital Signs | Result | visit | Repetition |

1 | Dias | 60 | 1 | a |

1 | Dias | 65 | 1 | b |

1 | Dias | 62 | 1 | c |

1 | Sys | 122 | 1 | a |

1 | Sys | 120 | 1 | b |

1 | Sys | 125 | 1 | c |

1 | Pul | 72 | 1 | a |

1 | Pul | 74 | 1 | b |

1 | Pul | 77 | 1 | c |

2 | Dias | 65 | 1 | a |

.... | ... | .... | .... | .... |

I would like to write a formula that calculates repetitions for vital signs measurements in a new column (e.g. repetition a, b, c). What would be the best way to assign those values?

Thank you in advance forhelp.

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If making the Repetition a numeric value is an option, then you could simply create the new column, and then go to Col Info, and under "Initialize Data" select "Sequence Data" and then specify a sequence of 1 to 3

Or you could create the formula

```
theList = {"a", "b", "c"};
If( Mod( Row(), 3 ) > 0,
theList[Mod( Row(), 3 )],
theList[3]
);
```

Make sure the column is defined as a Character column to use the above formula

Jim

3 REPLIES 3

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If making the Repetition a numeric value is an option, then you could simply create the new column, and then go to Col Info, and under "Initialize Data" select "Sequence Data" and then specify a sequence of 1 to 3

Or you could create the formula

```
theList = {"a", "b", "c"};
If( Mod( Row(), 3 ) > 0,
theList[Mod( Row(), 3 )],
theList[3]
);
```

Make sure the column is defined as a Character column to use the above formula

Jim

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Re: How to assign a number for a repeated measurement

Thank you! It works perfectly. Have a nice day.

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Re: How to assign a number for a repeated measurement