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# Week3 - MATLAB Week 3 MATLAB Functions for Rows Syntax for...

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MATLAB Week 3

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MATLAB Functions for Rows Syntax for matrix min/max and index is [<variable>,<index>]=<function>(<matrix>, [],2) A = 1 5 7 9 8 6 3 2 4 6 5 3 colmin = 1 5 3 2 i = 1 1 2 2 rowmin = 1 2 3 i = 1 4 4 [colmin, i]=min(A) [rowmin,i]=min(A,[],2)
MATLAB Functions for Rows Syntax for matrix means, sums, products is <variable name>=<function>(<matrix>,2) A = 1 5 7 9 8 6 3 2 4 6 5 3 meancol = 4.3333 5.6667 5.0000 4.6667 meanrow = 5.5000 4.7500 4.5000 meancol=mean(A) meanrow=mean(A,2)

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MATLAB Functions for Rows Syntax for matrix differences is <variable>=diff(<matrix>, [],2) A = 1 5 7 9 8 6 3 2 4 6 5 3 diffcol = 7 1 -4 -7 -4 0 2 1 diffrow = 4 2 2 -2 -3 -1 2 -1 -2 diffcol=diff(A) diffrow=diff(A,[],2)
MATLAB Functions for Rows Syntax for sorting is sort(<matrix>, 2 , ‘mode’) A = 1 5 7 9 8 6 3 2 4 6 5 3 sort_col = 1 5 3 2 4 6 5 3 8 6 7 9 sort_row = 1 5 7 9 2 3 6 8 3 4 5 6 sort_col=sort(A,'ascend') sort_row=sort(A,2,'ascend')

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Summary of Functions for Rows [ rowmin , i ]=min(A,[],2) min/max meanrow =mean(A,2) means, sums, products diffrow =diff(A,[],2) differences sort_row =sort(A,2,'ascend') sorting A is the matrix name
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