SetPrecisionX
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## SetPrecisionX

SetPrecisionX — Set precision for numeric formated X labels

## Synopsis

    $plot->SetPrecisionX($prec)

## Description

`SetPrecisionX` sets the desired numeric precision for X tick and data labels, and also enables 'data' mode formatting of those labels with SetXLabelType.

### Note

This function is retained for compatibility, but use of SetXLabelType is preferred.

## Parameters

`$prec`

  The desired numeric precision. This is the number of decimal positions to output.

## Notes

Setting numeric precision with this function automatically enables 'data' mode formatting as if `SetXLabelType('data')` was called.

The default is to format numbers with 1 decimal position, but only if 'data' mode formatting is selected.

This applies to both X data labels and X tick labels (only one of which should be enabled). Using 'data' format for X data labels only makes sense when your data array contains numeric data in the label position.

## History

Starting with PHPlot-5.0.6, using `SetPrecisionX($n)` is exactly the same as calling `SetXLabelType('data', $n)`.

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