DynamicSparseArrays.jl:Julia的动态稀疏矢量和矩阵

DynamicSparseArrays.jl 安装软件包： ] add DynamicSparseArrays 例子 using DynamicSparseArrays I = [ 1 , 10 , 3 , 5 , 3 ] V = [ 1.0 , 2.4 , 7.1 , 1.1 , 1.0 ] vector = dynamicsparsevec (I,V) # create a vector vector[ 3 ] == 2.4 + 1.0 # true vector[ 78 ] = 1.5 # insert a value (new row) vector[ 2 ] # retrieve a value vector[ 2 ] = 0 # delete a value I = [ 1 , 2 , 3 , 2 , 6 , 7 , 1 , 6 , 8 ] # rows J = [ 1 ,