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how to plot data associated with a certain value?

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boutros baqain
boutros baqain 2020-5-3
评论： KSSV 2020-5-3
Hey guys i have an observation file for a Navigation data and i have different PRN numbers that i need to plot. for example i have PRN (6,7,2,5,3,6,1,10,29), but the data is logged every second and the columns assosiated with the PRNs is not uniformed or sorted. my question is how can i group all the data lets say for PRN 6 and plot data only assoisated with PRN 6? my matrix is 2209 x 25
thank you
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boutros baqain
boutros baqain 2020-5-3
so the matrix is 2209 x 25 the PRN is in the second column. so PRN 6 have 100 rows but they are scattered in coulmn 2. so i want to collect the data that is assosiated with "6" and plot it.
Thank you Very much!

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KSSV
KSSV 2020-5-3
If A is 2209X25 matrix with PRN as second column.
PRN = A(:,2) ; % Pick second column
idx = PRN==6 ; %Get indices of 6 in PRN
iwant = A(idx,:)

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