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4fa86422c0
* stdlib tests now check refc too * typo * fixes line numbers * disable cpp * do not touch
62 lines
1.7 KiB
Nim
62 lines
1.7 KiB
Nim
discard """
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matrix: "--mm:refc; --mm:orc"
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"""
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import std/[stats, assertions]
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import std/math
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func `~=`(x, y: float32): bool =
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math.almostEqual(x, y)
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template main() =
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var rs: RunningStat
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rs.push(@[1.0, 2.0, 1.0, 4.0, 1.0, 4.0, 1.0, 2.0])
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doAssert(rs.n == 8)
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doAssert rs.mean ~= 2.0
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doAssert rs.variance() ~= 1.5
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doAssert rs.varianceS() ~= 1.71428571
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doAssert rs.skewness() ~= 0.81649658
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doAssert rs.skewnessS() ~= 1.01835015
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doAssert rs.kurtosis() ~= -1.0
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doAssert rs.kurtosisS() ~= -0.7000000000000001
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var rs1, rs2: RunningStat
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rs1.push(@[1.0, 2.0, 1.0, 4.0])
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rs2.push(@[1.0, 4.0, 1.0, 2.0])
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let rs3 = rs1 + rs2
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doAssert rs3.variance ~= rs.variance
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doAssert rs3.skewness ~= rs.skewness
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doAssert rs3.kurtosis ~= rs.kurtosis
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rs1 += rs2
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doAssert rs1.variance ~= rs.variance
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doAssert rs1.skewness ~= rs.skewness
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doAssert rs1.kurtosis ~= rs.kurtosis
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rs1.clear()
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rs1.push(@[1.0, 2.2, 1.4, 4.9])
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doAssert rs1.sum ~= 9.5
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doAssert rs1.mean() ~= 2.375
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when not defined(cpu32):
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# XXX For some reason on 32bit CPUs these results differ
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var rr: RunningRegress
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rr.push(@[0.0, 1.0, 2.8, 3.0, 4.0], @[0.0, 1.0, 2.3, 3.0, 4.0])
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doAssert rr.slope() ~= 0.9695585996955861
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doAssert rr.intercept() ~= -0.03424657534246611
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doAssert rr.correlation() ~= 0.9905100362239381
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var rr1, rr2: RunningRegress
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rr1.push(@[0.0, 1.0], @[0.0, 1.0])
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rr2.push(@[2.8, 3.0, 4.0], @[2.3, 3.0, 4.0])
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let rr3 = rr1 + rr2
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doAssert rr3.correlation() ~= rr.correlation()
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doAssert rr3.slope() ~= rr.slope()
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doAssert rr3.intercept() ~= rr.intercept()
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block: # bug #18718
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var rs: RunningStat
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rs.push(-1.0)
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doAssert rs.max == -1.0
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static: main()
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main()
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