How to generate -1, 0 and 1?

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Sagar Dutta
Sagar Dutta 2019-9-19
回答： Steven Lord 2019-9-19
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

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采纳的回答

Star Strider
Star Strider 2019-9-19
编辑：Star Strider 2019-9-19
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.

更多回答（1 个）

Steven Lord
Steven Lord 2019-9-19
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.

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