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 University Corporation for Atmospheric Research
 NCAR Command Language Version 6.6.2
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warning:ttest: encountered 13824 cases where s1 and/or s2 were less than 2. Output set to missing values in these cases

warning:ttest: warning:ttest: encountered 13824 cases where s1 and/or s2 were less than 2. Output set to missing values in these cases

warning:ttest: encountered 13824 cases where var1 and/or var2 were less than or equal to 0. Output set to missing values in these cases