Difference between revisions of "Addon:DateCalculator"
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Use the {{man button|Clear}} button to start again. | Use the {{man button|Clear}} button to start again. | ||
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==Example usage== | ==Example usage== | ||
| + | [[File:DateCalculatorGramplet-addon-example-50.png|center|450px|Date Calculator Gramplet - Example results]] | ||
Assume that a headstone has only a date of death and age at death. | Assume that a headstone has only a date of death and age at death. | ||
<table><TR><TH colspan="3">RANEY</TH></TR> | <table><TR><TH colspan="3">RANEY</TH></TR> | ||
Revision as of 03:26, 26 December 2019
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This is a Third-party Addon. The Addon/Plugin system is controlled by the Plugin Manager. Please use carefully on data that is backed up, and help make it better by reporting any issues to the bug tracker. |
The Date Calculator Gramplet allows you to do date math.
Enter at least one valid date for Expression 1 and Expression 2 then click the Calculate button.
An expression can be:
- a valid Gramps date
- a positive or negative number (represents years)
- a positive or negative tuple (years, months, days)
Use the Clear button to start again.
Example usage
Assume that a headstone has only a date of death and age at death.
| RANEY | ||
|---|---|---|
|
MOTHER Wife of Died & 3Ds. Blessed are the dead who die in the Lord |
 Source: Iowa Gravestone Photo Project |
FATHER Died & 7Ds I will behold thy face |
Enter a date in each field in the following format ( YYYY-MM-DD ).
Expression 1
Enter s starting date or offset value:
for the wife in the example gravestone, enter 14 Nov 1902
Expression 2
an offset tuple is in the form y,m,d
Example for "Aged 73Yrs. 4Mo. & 3Ds.", use "- 73, 4, 3"
Note that only a single leading negative sign is needed to indicate a negative tuple.
Result
Pressing the Calculate button returns 1829-07-11. When storing a date that's been calculated from a reference rather than a historical record, it is hard to be certain what methodology was used. So the results are an estimate. Annotate this by preceding the value with "calc abt"
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Initially, the Result field will contain the following usage hint: Enter an expression in the entries above and click Calculate. An expression can be: 1. a valid Gramps date 2. a positive or negative number, representing years 3. a positive or negative tuple, representing (years, months, days) Note that at least one expression must be a date. |
See also
- [[Gramps_Template:Version manual_Wiki_Manual_-_Entering_and_editing_data:_detailed_-_part_1#Editing_dates|Editing dates]]
- [[Gramps_Template:Version manual_Wiki_Manual_-_Reports_-_part_2#Formatting_Dates|Formatting Dates]]
