Hi all,

I have a multidimensional array [0]:[0], [1], [2], [3] and I want to try and find the min and max values of each index of that array over the whole array. I am using:

``````for (\$i = 0; \$i < count(\$input); \$i++)
{
\$string1[] = \$input[\$i][1];
\$string2[] = \$input[\$i][2];
\$string3[] = \$input[\$i][3];
\$string4[] = \$input[\$i][4];
}
``````

This gives me a linear array of all the values that I then pass into:

``````    \$string1_max = max(\$string1);
\$string1_min = min(\$string1);
\$x_ys1 = nValues(\$string1_min, \$string1_max, 0, 1);

\$string2_max = max(\$string2);
\$string2_min = min(\$string2);
\$x_ys2 = nValues(\$string2_min, \$string2_max, 0, 1);

\$string3_max = max(\$string3);
\$string3_min = min(\$string3);
\$x_ys3 = nValues(\$string3_min, \$string3_max, 0, 1);

\$string4_max = max(\$string4);
\$string4_min = min(\$string4);
\$x_ys4 = nValues(\$string4_min, \$string4_max, 0, 1);
``````

My question is: is there a way to code this formular when the indexes within the multidimensional array are unknown? At the moment they are hard coded from 1-4... but I want to be able to code them 1-x (0 is missed on purpose).

I tried playing around with multiple for statements, but just got confused. Is there a way to do this?

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Last Post by James_43

``````\$arr =  [
[21,43,54,34],
[2.5,53.2,24,55],
[32,11,2,5]
];
\$minArr = [];

for( \$i=0; \$i < count(\$arr); \$i++)
{
\$minArr[\$i] = min(\$arr[\$i]);
}
``````

Edited by jkon

If u want max as well

As jkon but with...

``````\$minmaxArr = [];
for( \$i=0; \$i < count(\$arr); \$i++)
{
\$minmaxArr[\$i] = [min(\$arr[\$i]),max(\$arr[\$i])];
}
``````

Ah cool, that makes a lot of sense. Cheers :)