# How to generate -1, 0 and 1?

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Sagar Dutta on 19 Sep 2019
Answered: Steven Lord on 19 Sep 2019
I have these final values (A) which i want to convert into three distinct values "-1", "0" and "1". Is there any logic/function with which i can create these three values.
A= [ 0.6286 0.8418 0.0710 1.0000 0.0679 1.0000 -1.0000 0.9993
0.2775 -0.6166 0.1573 -0.9252 0.0696 1.0000 0.3095 -0.9932
-0.4295 0.1549 0.0091 -0.3527 -0.2070 -0.2481 0.7447 0.9579
0.8001 -0.5858 0.1576 -0.7784 0.2252 0.6288 -0.1014 -0.5635
-0.2302 0.9978 0.0942 -0.0956 0.2023 0.2124 0.1767 -0.4639
0.5237 -0.9969 -0.7340 -0.2531 0.5827 0.2777 -0.3598 0.4714
-0.3218 1.0000 -0.5890 -0.4673 0.4031 -0.1164 -0.1738 0.6229
-0.1244 -0.9800 -0.8206 -0.2040 -0.7268 -0.6902 0.0545 -0.3947]
Range of matrix A is from -1 to +1

Star Strider on 19 Sep 2019
Edited: Star Strider on 19 Sep 2019
I am not certain what result you want.
One option is the sign function:
A = [ -0.6286 -0.8418 0.0710 1.0000 0.2679 1.0000 -1.0000 0.9999];
B = sign(A)
producing:
B =
-1 -1 1 1 1 1 -1 1
EDIT —
With your edited Question, my Answer remains the same, although the result obviously changes with your new ‘A’. (The new ‘B’ matrix becomes an appropriately-sized matrix of -1, 0, and 1, although there are no 0 values because there are no 0 values in the ‘A’ matrix.) Note that sign(0) will be 0, so that will work with an ‘A’ array with some elements being 0.

Steven Lord on 19 Sep 2019
If you want to map ranges of values in your original data to the values -1, 0, and 1 you could discretize your data. Use the syntax that accepts X, EDGES, and VALUES.