[ncl-talk] query about ttest function

[Xi Chang]

Dear NCL,

may i have your suggestions,. i have two monthly nc files lets say
A[time,lat] and B[time,lat]. I woudl like to calculate the statistically
significant differences usinh ttest and plot them XY, where Y is latitude
and X is time (month,1-12). What an efficient way to do that? do i have to
repeat 12times ttest (mean,variance and df) following the time span? is
there any trick?

Thanks a lot.
Chang
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