 # How to compare unordered string arrays

I have a string array that I make ahead of time that I need to compare to another string array that is prepared by my GAUSS program. The problem is that my program will create the string array in an arbitrary order. For a simple illustration, I may start with:

```string sa_1 = { "AGE", "INCOME", "RISK_TOLERANCE", "QALY" };
```

and need to compare it to another string array that might be in any order. What is the simplest way to do this?

0

accepted

The simplest way to make this comparison is by first sorting the string array created by your program and then doing a direct compare of the two string arrays like this:

```string sa_1 = { "AGE", "INCOME", "QALY", "RISK_TOL" };
string sa_2 = { "QALY", "INCOME", "RISK_TOL", "AGE" };

//sort string array based upon the first (and only) column
sa_2 = sortcc(sa_2, 1);

//compare the sorted 'sa_2' with the original string array
//using the string comparison operator \$==
if (sa_1 \$== sa_2);
print "sa_1 = " sa_1;
print "sa_2 = " sa_2;
else;
print "comparison failed";
endif;
```

This short program snippet should return:

```sa_1 =
AGE
INCOME
QALY
RISK_TOL
sa_2 =
AGE
INCOME
QALY
RISK_TOL
``` aptech

1,728

0
accepted

The simplest way to make this comparison is by first sorting the string array created by your program and then doing a direct compare of the two string arrays like this:

```string sa_1 = { "AGE", "INCOME", "QALY", "RISK_TOL" };
string sa_2 = { "QALY", "INCOME", "RISK_TOL", "AGE" };

//sort string array based upon the first (and only) column
sa_2 = sortcc(sa_2, 1);

//compare the sorted 'sa_2' with the original string array
//using the string comparison operator \$==
if (sa_1 \$== sa_2);
print "sa_1 = " sa_1;
print "sa_2 = " sa_2;
else;
print "comparison failed";
endif;
```

This short program snippet should return:

```sa_1 =
AGE
INCOME
QALY
RISK_TOL
sa_2 =
AGE
INCOME
QALY
RISK_TOL
``` aptech
1,728

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