Problema con jpgraph y postgresql

[Montes28]

triby gracias por responder

hice lo que me indicaste var_dump($xdata, $ydata);

array(1) { [0]=> string(22) "2012-06-27 00:13:03-05" } array(1) { [0]=> string(1) "3" } array(2) { [0]=> string(22) "2012-06-27 00:13:03-05" [1]=> string(22) "2012-06-27 00:15:19-05" } array(2) { [0]=> string(1) "3" [1]=> string(1) "3" } array(3) { [0]=> string(22) "2012-06-27 00:13:03-05" [1]=> string(22) "2012-06-27 00:15:19-05" [2]=> string(22) "2012-06-27 00:00:46-05" } array(3) { [0]=> string(1) "3" [1]=> string(1) "3" [2]=> string(1) "3" } array(4) { [0]=> string(22) "2012-06-27 00:13:03-05" [1]=> string(22) "2012-06-27 00:15:19-05" [2]=> string(22) "2012-06-27 00:00:46-05" [3]=> string(22) "2012-06-27 00:07:34-05" } array(4) { [0]=> string(1) "3" [1]=> string(1) "3" [2]=> string(1) "3" [3]=> string(1) "3" } array(5) { [0]=> string(22) "2012-06-27 00:13:03-05" [1]=> string(22) "2012-06-27 00:15:19-05" [2]=> string(22) "2012-06-27 00:00:46-05" [3]=> string(22) "2012-06-27 00:07:34-05" [4]=> string(22) "2012-06-27 00:22:19-05" } array(5) { [0]=> string(1) "3" [1]=> string(1) "3" [2]=> string(1) "3" [3]=> string(1) "3" [4]=> string(1) "3" } JpGraph Error Either X or Y data arrays contains non-numeric values. Check that the data is really specified as numeric data and not as strings. It is an error to specify data for example as '-2345.2' (using quotes).