check for decrease and increase

i have a matrix and check for a column to see if the values are rapidly decreasing in steps of five. how to check for it? for example the matrix is x and the second column.

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KSSV
KSSV 2018-11-5

0 个投票

Read about diff. This will get the difference of successive rows. If decreasing diff would be negative, if increasing diff will be positive.

更多回答(3 个)

madhan ravi
madhan ravi 2018-11-5
编辑:madhan ravi 2018-11-5
x=[100:-5:0] %an example
issorted(x,'strictdescend') %to check if they are sorted
abs(diff(x))==5
Image Analyst
Image Analyst 2018-11-5
编辑:Image Analyst 2021-11-23

1 个投票

Try the function findchangepts(), in versions of MATLAB r2016a and later.
Palnati saidatta
Palnati saidatta 2021-11-23

0 个投票

x=[100:-5:0] %an example
issorted(x,'strictdescend') %to check if they are sorted
abs(diff(x))==5

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