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Question
Produce a vector B which contain the average of each column of matrix A
i have a matrix A has a random number of row 1 and 5 and random number of column between 1 and 10. how can i create a vector B w...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
how to multiply only the second row of matrix with a number
how to multiply only the second row of matrix 2*2 with a random integer and change entry 2*2 to be equal to the entry (1,2)
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
draw two plot in a graph
Hi. i have two columns with too much raws as each column (about 1.300.000 raws) and i want the plot look like as below, it incl...
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
How to draw 2 different plot on a graph
we have two column A and B. so how to draw 2 different plots on a graph?
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
Find the 100 largest numbers in a column
Hello. I have a column about 1.300.300 values, how can i find top 100 largest values in this column?
plus de 5 ans il y a | 1 réponse | 0
