I have these two matrix called my_mat and NATR332. I would like to convert matrix into csv format which can be done by the code I have below and get results my_mat_csv and NATR_csv. However, I am more interested in writing a function that does the exact same thing instead of looping over the two matrices two times. Coming from R, I somehow managed to write this loop below, but I am not familiar with functions in SAS so I would really appreciate any help you could provide me.
proc iml;
/* lets create a matrix */
my_mat ={'a' 'b' 'c', 'c' 'd' 'e', 'f' 'g' 'h'};
mat_col = {"C1" "C2" "C3"};
print my_mat[colname=mat_col];
Y1 = {146 141 135 142 140 143 138 137 142 136};
Y2 = {141 143 139 139 140 141 138 140 142 138};
NATR332 = {};
length = dimension(Y1)[2];
nat_ColName={"Y1" "Y2"};
NATR332={};
do i=1 to length;
a=0;
a=y1[i];
b=y2[i];
NATR332=NATR332 // (a || b);
end;
print NATR332[colname=nat_ColName];
dimension_m= dimension(my_mat);
i=1;
j=1;
s="";
s=s+mat_col[1]+","+mat_col[2]+","+mat_col[3]+"\n,";
do i=1 to dimension_m[1];
do j=1 to dimension_m[2];
if(j^=dimension_m[2]) then s=s+my_mat[i,j]+",";
else if(j=dimension_m[2]) then
do;
if(i=dimension_m[1]) then
do;
s=s+my_mat[i,j];
LEAVE;
end;
else s=s+my_mat[i,j]+"\n,";
end;
end;
end;
my_mat_csv=s;
print(my_mat_csv);
my_mat=NATR332;
dimension_m=dimension(my_mat);
i=1;
j=1;
s=nat_ColName[1]+","+nat_ColName[2]+"\n,";
do i=1 to dimension_m[1];
do j=1 to dimension_m[2];
val=putn(my_mat[i,j],"3.");
if(j^=dimension_m[2]) then s=s+val+",";
else if(j=dimension_m[2]) then
do;
if(i=dimension_m[1]) then
do;
s=s+val;
LEAVE;
end;
else s=s+val+"\n,";
end;
end;
end;
NATR_csv=s;
print(NATR_csv);
quit;
Matrix I am interested in testing the function is NATR332 below:
data NATR332;
input Y1 Y2;
datalines;
146 141
141 143
135 139
142 139
140 140
143 141
138 138
137 140
142 142
136 138
run;
Can you explain what that code is trying to do?
It does not seem to relate to the topic of create a CSV (comma separated values) file.
Does CSV mean something else in this case?
What is the meaning of the two inputs?
What output do you want for your example input?
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