# Decimal accuracy issue when prjecting data

**URL:** <https://forum.generic-mapping-tools.org/t/decimal-accuracy-issue-when-prjecting-data/4396>\
**Category:** PyGMT Q&A\
**Created:** [November 1, 2023, 5:20pm UTC](https://forum.generic-mapping-tools.org/t/decimal-accuracy-issue-when-prjecting-data/4396 "2023-11-01T17:20:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![sfpoveda](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/sfpoveda/32/3066_2.png) [@sfpoveda](https://forum.generic-mapping-tools.org/u/sfpoveda)\
**Post date:** [November 1, 2023, 5:20pm UTC](https://forum.generic-mapping-tools.org/t/decimal-accuracy-issue-when-prjecting-data/4396/1 "2023-11-01T17:20:16Z")

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Hye,

I’m trying to project some earthquakes but the output file (projected data) lacks of decimals for accuracy. The input longitude and latitude have 4-5 decimals of accuracy, but the projected data has only 2 decimals of accuracy, and this is a problem because when I try to plot the projected data, some wrong not real alignments of earthquakes in my cross section. How can I specify decimal accuracy using pygmt.project?

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**Author:** ![sfpoveda](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/sfpoveda/32/3066_2.png) [@sfpoveda](https://forum.generic-mapping-tools.org/u/sfpoveda)\
**Post date:** [November 1, 2023, 5:36pm UTC](https://forum.generic-mapping-tools.org/t/decimal-accuracy-issue-when-prjecting-data/4396/2 "2023-11-01T17:36:55Z")

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I found the error. I’ve set **FORMAT\_FLOAT\_OUT** equal to ‘%.2f’ for a map, and it sems this config remained so, causing truncated decimals in projections.

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**Author:** ![pwessel](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/pwessel/32/30_2.png) [@pwessel](https://forum.generic-mapping-tools.org/u/pwessel)\
**Post date:** [November 1, 2023, 6:45pm UTC](https://forum.generic-mapping-tools.org/t/decimal-accuracy-issue-when-prjecting-data/4396/3 "2023-11-01T18:45:44Z")

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Best to use **–FORMAT\_FLOAT\_OUT** =%.2f for particular commands related to formatting so you don’t end up with in your gmt.conf as you did.