deleting certain data (zeros) from some columns in data without line shift

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Akua Agyeman
Akua Agyeman le 1 Mai 2017
Importing csv file into vector with 2 columns and 200 rows. row 0-358 have zeros in second column. Need to delete all rows that include the zero data so I can plot graphs with the rest. how do i do that

Réponses (1)

Guillaume
Guillaume le 1 Mai 2017
yourmatrix(any(yourmatrix, :) ==0, :) = []
To delete rows where any column is 0.
Note that by definition a vector has all but one dimension equal to 1. There can not be a vector with 2 columns and 200 rows. This is a matrix.
Also note that if it's just for plotting you don't need to delete anything. Simply use basic indexing in your plot command:
plot(yourmatrix(359:end, :)); %only plot from row 359 onwards

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