Thank you for your quick reply ballardw! It is really useful. I see know how you have applied a format to set the variable as low high or medium, and then run a proc freq of this new formatted variable. Can I just check, what does the last bit of code do? Specifically: data want;
set have;
Low = (uv < 1);
Mid = (1 le uv le 2)l
high Does this code calculate the length of time that uV is in each range (rather than the number of points in the variable uV that are Low, Mid or High)? For this, could I add minutes to proc freq?
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