falltime Calling Sequence r=falltime(x) r=falltime(x, t) r=falltime(x, Fs) r=falltime(x, t, 'PercentReferenceLevels', N ) r=falltime(x, t, 'Tolerance', M) r=falltime(x, t,'StateLevels', O) [r lowercrossvalue uppercrossvalue lowerreference upperreference]=falltime(x) [r lowercrossvalue uppercrossvalue lowerreference upperreference]=falltime(x, Fs) [r lowercrossvalue uppercrossvalue lowerreference upperreference]=falltime(x, t) [r lowercrossvalue uppercrossvalue lowerreference upperreference]=falltime(x, t, 'PercentReferenceLevels', N ) [r lowercrossvalue uppercrossvalue lowerreference upperreference]= falltime(x, t, 'Tolerance', M) [r lowercrossvalue uppercrossvalue lowerreference upperreference]= falltime(x, t,'StateLevels', O) [r lowercrossvalue uppercrossvalue lowerreference upperreference]= falltime(x, t,'StateLevels', O, 'fig', on or off) Parameters x: real vector. Fs: specifies the sample rate, Fs, as a positive scalar, where the first sample instant corresponds to a time of zero. t: defiene instant sample time t as vector with same length of x, or specifies the sample rate, t, as a positive scalar. PercentReferenceLevels: specify the percentreferenceleves as a percentage, default value of N is [10 90]. Tolerance: define the tolerance value as real scaler value, where default value of M is 2.0. StateLevels: define the lower and upper state levels as two element real vector. fig: specify the logical input value to display figure as one of 'on' or 'off', where the default input in 'off'. f: return fall time of negative-going bilevel waveform transitions X. lowercrossvalue: return the lowerc cross value. uppercrossvalue: return the upper cross value. lowerreference: return lower reference value corrosponding to lower percent reference value. upperreference: return upper reference value corrosponding to upper percent reference value.