@Test
public void test() {
Frame frame = null;
try {
Futures fs = new Futures();
Random random = new Random();
Vec[] vecs = new Vec[1];
AppendableVec vec = new AppendableVec(Vec.newKey(), Vec.T_NUM);
for (int i = 0; i < 2; i++) {
NewChunk chunk = new NewChunk(vec, i);
for (int r = 0; r < 1000; r++) chunk.addNum(random.nextInt(1000));
chunk.close(i, fs);
}
vecs[0] = vec.layout_and_close(fs);
fs.blockForPending();
frame = new Frame(Key.<Frame>make(), null, vecs);
// Make sure we test the multi-chunk case
vecs = frame.vecs();
assert vecs[0].nChunks() > 1;
long rows = frame.numRows();
Vec v = vecs[0];
double min = Double.POSITIVE_INFINITY, max = Double.NEGATIVE_INFINITY, mean = 0, sigma = 0;
for (int r = 0; r < rows; r++) {
double d = v.at(r);
if (d < min) min = d;
if (d > max) max = d;
mean += d;
}
mean /= rows;
for (int r = 0; r < rows; r++) {
double d = v.at(r);
sigma += (d - mean) * (d - mean);
}
sigma = Math.sqrt(sigma / (rows - 1));
double epsilon = 1e-9;
assertEquals(max, v.max(), epsilon);
assertEquals(min, v.min(), epsilon);
assertEquals(mean, v.mean(), epsilon);
assertEquals(sigma, v.sigma(), epsilon);
} finally {
if (frame != null) frame.delete();
}
}
@Test
public void test_setNA() {
// Create a vec with one chunk with 15 elements, and set its numbers
Vec vec = new Vec(Vec.newKey(), new long[] {0, 15}).makeZeros(1, null, null, null, null)[0];
int[] vals = new int[] {0, 3, 0, 6, 0, 0, 0, -32769, 0, 12, 234, 32765, 0, 0, 19};
Vec.Writer w = vec.open();
for (int i = 0; i < vals.length; ++i) w.set(i, vals[i]);
w.close();
Chunk cc = vec.chunkForChunkIdx(0);
assert cc instanceof C2SChunk;
Futures fs = new Futures();
fs.blockForPending();
for (int i = 0; i < vals.length; ++i) Assert.assertEquals(vals[i], cc.at80(i));
for (int i = 0; i < vals.length; ++i) Assert.assertEquals(vals[i], cc.at8(i));
int[] NAs = new int[] {1, 5, 2};
int[] notNAs = new int[] {0, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14};
for (int na : NAs) cc.setNA(na);
for (int na : NAs) Assert.assertTrue(cc.isNA0(na));
for (int na : NAs) Assert.assertTrue(cc.isNA(na));
for (int notna : notNAs) Assert.assertTrue(!cc.isNA0(notna));
for (int notna : notNAs) Assert.assertTrue(!cc.isNA(notna));
NewChunk nc = new NewChunk(null, 0);
cc.inflate_impl(nc);
nc.values(0, nc.len());
Assert.assertEquals(vals.length, nc.sparseLen());
Assert.assertEquals(vals.length, nc.len());
Iterator<NewChunk.Value> it = nc.values(0, vals.length);
for (int i = 0; i < vals.length; ++i) Assert.assertTrue(it.next().rowId0() == i);
Assert.assertTrue(!it.hasNext());
for (int na : NAs) Assert.assertTrue(cc.isNA0(na));
for (int na : NAs) Assert.assertTrue(cc.isNA(na));
for (int notna : notNAs) Assert.assertTrue(!cc.isNA0(notna));
for (int notna : notNAs) Assert.assertTrue(!cc.isNA(notna));
Chunk cc2 = nc.compress();
Assert.assertEquals(vals.length, cc.len());
Assert.assertTrue(cc2 instanceof C2SChunk);
for (int na : NAs) Assert.assertTrue(cc.isNA0(na));
for (int na : NAs) Assert.assertTrue(cc.isNA(na));
for (int notna : notNAs) Assert.assertTrue(!cc.isNA0(notna));
for (int notna : notNAs) Assert.assertTrue(!cc.isNA(notna));
Assert.assertTrue(Arrays.equals(cc._mem, cc2._mem));
vec.remove();
}
@Test
public void test_inflate_impl2() {
for (int l = 0; l < 2; ++l) {
NewChunk nc = new NewChunk(null, 0);
long[] man = new long[] {-12767, 34, 0, 52767};
int[] exp = new int[] {-3, -2, 1, -3};
if (l == 1) nc.addNA(); // -32768
for (int i = 0; i < man.length; ++i) nc.addNum(man[i], exp[i]);
nc.addNA();
Chunk cc = nc.compress();
Assert.assertEquals(man.length + 1 + l, cc.len());
Assert.assertTrue(cc instanceof C2SChunk);
if (l == 1) {
Assert.assertTrue(cc.isNA0(0));
Assert.assertTrue(cc.isNA(0));
}
for (int i = 0; i < man.length; ++i) {
Assert.assertEquals((float) (man[i] * Math.pow(10, exp[i])), (float) cc.at0(l + i), 0);
Assert.assertEquals((float) (man[i] * Math.pow(10, exp[i])), (float) cc.at(l + i), 0);
}
Assert.assertTrue(cc.isNA0(man.length + l));
nc = cc.inflate_impl(new NewChunk(null, 0));
nc.values(0, nc.len());
Assert.assertEquals(man.length + 1 + l, nc.len());
Assert.assertEquals(man.length + 1 + l, nc.sparseLen());
if (l == 1) {
Assert.assertTrue(nc.isNA0(0));
Assert.assertTrue(nc.isNA(0));
}
for (int i = 0; i < man.length; ++i) {
Assert.assertEquals((float) (man[i] * Math.pow(10, exp[i])), (float) nc.at0(l + i), 0);
Assert.assertEquals((float) (man[i] * Math.pow(10, exp[i])), (float) nc.at(l + i), 0);
}
Assert.assertTrue(nc.isNA0(man.length + l));
Assert.assertTrue(nc.isNA(man.length + l));
Chunk cc2 = nc.compress();
Assert.assertEquals(man.length + 1 + l, cc.len());
if (l == 1) {
Assert.assertTrue(cc2.isNA0(0));
Assert.assertTrue(cc2.isNA(0));
}
for (int i = 0; i < man.length; ++i) {
Assert.assertEquals((float) (man[i] * Math.pow(10, exp[i])), (float) cc2.at0(l + i), 0);
Assert.assertEquals((float) (man[i] * Math.pow(10, exp[i])), (float) cc2.at(l + i), 0);
}
Assert.assertTrue(cc2.isNA0(man.length + l));
Assert.assertTrue(cc2.isNA(man.length + l));
Assert.assertTrue(cc2 instanceof C2SChunk);
Assert.assertTrue(Arrays.equals(cc._mem, cc2._mem));
}
}
@Test
public void test_inflate_impl() {
final int K = 1 << 16;
for (Double d :
new Double[] {
3.14159265358,
Double.POSITIVE_INFINITY,
Double.NEGATIVE_INFINITY,
Double.MAX_VALUE,
Double.NaN
}) {
NewChunk nc = new NewChunk(null, 0);
for (int i = 0; i < K; ++i) nc.addNum(d);
Assert.assertEquals(K, nc.len());
Assert.assertEquals(K, nc.sparseLen());
Chunk cc = nc.compress();
Assert.assertEquals(K, cc.len());
Assert.assertTrue(cc instanceof C0DChunk);
for (int i = 0; i < K; ++i) Assert.assertEquals(d, cc.at0(i), Math.ulp(d));
for (int i = 0; i < K; ++i) Assert.assertEquals(d, cc.at(i), Math.ulp(d));
nc = cc.inflate_impl(new NewChunk(null, 0));
nc.values(0, nc.len());
Assert.assertEquals(K, nc.len());
Assert.assertEquals(K, nc.sparseLen());
for (int i = 0; i < K; ++i) Assert.assertEquals(d, nc.at0(i), Math.ulp(d));
for (int i = 0; i < K; ++i) Assert.assertEquals(d, nc.at(i), Math.ulp(d));
Chunk cc2 = nc.compress();
Assert.assertEquals(K, cc2.len());
Assert.assertTrue(cc2 instanceof C0DChunk);
for (int i = 0; i < K; ++i) Assert.assertEquals(d, cc2.at0(i), Math.ulp(d));
for (int i = 0; i < K; ++i) Assert.assertEquals(d, cc2.at(i), Math.ulp(d));
Assert.assertTrue(Arrays.equals(cc._mem, cc2._mem));
}
}