dear ncl friends:
i am just a beginner for using ncl.i have some problem when i use ncl for spectrum analysis.
1.when we use the function specx_anal,which number could i choose for its third dimension "jave" ?i meant that i don not know what should be depentent on for the choice,or just only satifying "at least 3 or odd"
2,when i use the function specx-ci for red noise significent test,why is the lower bound should be drawn in its output ?
in my eyes,we often use the upper bound but not the lower,could you tell me the reason for the lower bound line?
3,another problem is that if i want to write freqency in the below x axis ,meanwhile i also want to write the relative period in the top x axis,what can i do in ncl ?(the frequecy and the period are corresponding)
thank you for your help!
best regards!
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