# Running Rate of Change given two different columns if a criteria is met

2 views (last 30 days)
IDN on 15 Nov 2022
Answered: IDN on 16 Nov 2022
Good Morning all,
I am looking to accomplish the following. I have 6 Columns i wan to calculate a running rate of change that starts as soon as s = 1 and ends the running addition when s = -1 and just keeps on doing it across the entire column. As for the rate of change, it should take the first "pc" value when s = 1 as the base and just keeps calculating it all the way down...(see example below). This needs to be calculate using "ph" and "pl". Please see Excel file attached with my example.
ph pl pc s rocl roch
32.15 28.58 31.51 0
33.65 31.27 33.65 0
40.42 33.57 39.75 1 pl / pc ph / pc
43.22 39.62 42.6 1 -0.33% 8.73% rocl = (39.62/39.75)-1 roch = (43.22/39.75)-1
45.32 41.02 41.44 1 3.19% 14.01% rocl = (41.02/39.75)-1 roch = (45.32/39.75)-1
42.55 0.67 38.49 1 -98.31% 7.04%
39.7 35.81 36.02 1 -9.91% -0.13%
41.46 35.86 41.23 1 -9.79% 4.30%
43.06 40.16 41.64 1 1.03% 8.33%
44.51 39.88 44.47 1 0.33% 11.97%
44.9 41.58 42.41 1 4.60% 12.96%
42.77 38.26 39.4 1 -3.75% 7.60%
41.09 0.98 38.71 1 -97.53% 3.37%
39.97 0.24 0.52 1 -99.40% 0.55%
40.95 0.64 40.51 1 -98.39% 3.02%
42.36 40.02 41.25 1 0.68% 6.57%
44.06 40.05 44.03 1 0.75% 10.84%
44.06 0.91 38.69 1 -97.71% 10.84%
39.8 33.73 34 1 -15.14% 0.13%
34.03 28.75 29.38 1 -27.67% -14.39%
30.01 22.18 23.46 1 -44.20% -24.50%
23.42 18.47 19.8 -1 -53.53% -41.08%
56.8 48.21 56.08 0
60.26 55.77 56.4 0
59.12 55.15 55.55 0
55.54 48.07 48.25 0
56.44 48.11 53.69 0
Thanks so much for the help! Appreciate it very much!

IDN on 16 Nov 2022
Got it combining 2 for loops. Thanks!

### Categories

Find more on Loops and Conditional Statements in Help Center and File Exchange

R2020a

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!