NAME: ucross_cor PURPOSE: Calculate the cross correlation between two time-serise data and perform a test of correlation. CALLING SEQUENCE: ucross_cor, vname1,vname2 INPUT: vname1 = first tplot variable name vname2 = second tplot variable name OUTPUT: cross_cor = cross correlation between two time-serise data x_cor = auto correlation of the first tplot variable y_cor = auto correlation of the second tplot variable KEYWORDS: sl = Significant level of correlation test. low_lag = lag time of left direction high_lag = lag time of right direction EXAMPLE: ucross_cor, tplot1, tplot2 CODE: R. Hamaguchi, 15/01/2013. MODIFICATIONS: A. Shinbori, 31/01/2013. ACKNOWLEDGEMENT: $LastChangedBy: jimm $ $LastChangedDate: 2014-02-11 10:52:58 -0800 (Tue, 11 Feb 2014) $ $LastChangedRevision: 14325 $ $URL $