C++ PNEANet::BegNAFltI方法代码示例

// Test node attribute functionality
void ManipulateNodeEdgeAttributes() {
  int NNodes = 1000;
  int NEdges = 1000;
  const char *FName = "demo.graph.dat";

  PNEANet Graph;
  PNEANet Graph1;
  int i;
  int x, y;
  bool t;

  Graph = TNEANet::New();
  t = Graph->Empty();

  // create the nodes
  for (i = 0; i < NNodes; i++) {
    Graph->AddNode(i);
  }

  // create the edges 
  for (i = 0; i < NEdges; i++) {
    x = rand() % NNodes;
    y = rand() % NNodes;
    Graph->AddEdge(x, y, i);
  }

  // create attributes and fill all nodes
  TStr attr1 = "str";
  TStr attr2 = "int";
  TStr attr3 = "float";
  TStr attr4 = "default";

  // Test vertical int iterator for node 3, 50, 700, 900
  // Check if we can set defaults to 0 for Int data.
  Graph->AddIntAttrN(attr2, 0);
  Graph->AddIntAttrDatN(3, 3*2, attr2);
  Graph->AddIntAttrDatN(50, 50*2, attr2);
  Graph->AddIntAttrDatN(700, 700*2, attr2);
  Graph->AddIntAttrDatN(900, 900*2, attr2);
  int NodeId = 0;
  for (TNEANet::TAIntI NI = Graph->BegNAIntI(attr2);
    NI < Graph->EndNAIntI(attr2); NI++) {
    // Check if defaults are now 0.
    if (NI.GetDat()() != 0) {
      printf("Attribute: %s, Node: %i, Val: %i\n", attr2(), NodeId, NI.GetDat()());
      NodeId++;
    }
  } 

  // Test vertical flt iterator for node 3, 50, 700, 900
  Graph->AddFltAttrDatN(5, 3.41, attr3);
  Graph->AddFltAttrDatN(50, 2.718, attr3);
  Graph->AddFltAttrDatN(300, 150.0, attr3);
  Graph->AddFltAttrDatN(653, 653, attr3);
  NodeId = 0;
  for (TNEANet::TAFltI NI = Graph->BegNAFltI(attr3);
    NI < Graph->EndNAFltI(attr3); NI++) {
    if (NI.GetDat() != TFlt::Mn) {
      printf("Attribute: %s, Node: %i, Val: %f\n", attr3(), NodeId, NI.GetDat()());
      NodeId++;
    } 
  }

  // Test vertical str iterator for node 3, 50, 700, 900
  Graph->AddStrAttrDatN(10, "abc", attr1);
  Graph->AddStrAttrDatN(20, "def", attr1);
  Graph->AddStrAttrDatN(400, "ghi", attr1);
  // this does not show since ""=null
  Graph->AddStrAttrDatN(455, "", attr1);
  NodeId = 0;
  
  for (TNEANet::TAStrI NI = Graph->BegNAStrI(attr1);
    NI < Graph->EndNAStrI(attr1); NI++) {
    if (NI.GetDat() != TStr::GetNullStr()) {
      printf("Attribute: %s, Node: %i, Val: %s\n", attr1(), NodeId, NI.GetDat()());
      NodeId++;
    }
  } 

  // Test vertical iterator over many types (must skip default/deleted attr) 
  int NId = 55;
  Graph->AddStrAttrDatN(NId, "aaa", attr1);
  Graph->AddIntAttrDatN(NId, 3*2, attr2);
  Graph->AddFltAttrDatN(NId, 3.41, attr3);
  Graph->AddStrAttrDatN(80, "dont appear", attr4); // should not show up
  TStrV NIdAttrName;
  Graph->AttrNameNI(NId, NIdAttrName);
  int AttrLen = NIdAttrName.Len();
  for (int i = 0; i < AttrLen; i++) {
    printf("Vertical Node: %i, Attr: %s\n", NId, NIdAttrName[i]());
  } 

  Graph->DelAttrDatN(NId, attr2);
  Graph->AttrNameNI(NId, NIdAttrName);
  AttrLen = NIdAttrName.Len();
  for (int i = 0; i < AttrLen; i++) {
    printf("Vertical Node (no int) : %i, Attr: %s\n", NId, NIdAttrName[i]());
  } 

//.........这里部分代码省略.........

// Test node, edge attribute functionality
TEST(TNEANet, ManipulateNodesEdgeAttributes) {
  int NNodes = 1000;
  int NEdges = 1000;
  const char *FName = "demo.graph.dat";

  PNEANet Graph;
  PNEANet Graph1;
  int i;
  int x, y;
  bool t;

  Graph = TNEANet::New();
  t = Graph->Empty();

  // create the nodes
  for (i = NNodes - 1; i >= 0; i--) {
    Graph->AddNode(i);
  }

  EXPECT_EQ(NNodes, Graph->GetNodes());

  // create the edges 
  for (i = NEdges - 1; i >= 0; i--) {
    x = (long) (drand48() * NNodes);
    y = (long) (drand48() * NNodes);
    Graph->AddEdge(x, y, i);
  }

  // create attributes and fill all nodes
  TStr attr1 = "str";
  TStr attr2 = "int";
  TStr attr3 = "float";
  TStr attr4 = "default";

  // Test vertical int iterator for node 3, 50, 700, 900
  // Check if we can set defaults to 0 for Int data.
  Graph->AddIntAttrN(attr2, 0);
  Graph->AddIntAttrDatN(3, 3*2, attr2);
  Graph->AddIntAttrDatN(50, 50*2, attr2);
  Graph->AddIntAttrDatN(700, 700*2, attr2);
  Graph->AddIntAttrDatN(900, 900*2, attr2);

  EXPECT_EQ(3*2, Graph->GetNAIntI(attr2, 3).GetDat());
  EXPECT_EQ(50*2, Graph->GetNAIntI(attr2, 50).GetDat());

  int NodeId = 0;
  int DefNodes = 0;
  TVec<TInt> TAIntIV = TVec<TInt>();
  for (TNEANet::TAIntI NI = Graph->BegNAIntI(attr2);
    NI < Graph->EndNAIntI(attr2); NI++) {
    if (NI.GetDat()() != 0) {
      TAIntIV.Add(NI.GetDat());
      NodeId++;
    } else {
      DefNodes++;
    }
  }
  
  EXPECT_EQ(4, NodeId);
  EXPECT_EQ(NNodes - 4, DefNodes);
  TAIntIV.Sort();
  EXPECT_EQ(3*2, TAIntIV[0]);
  EXPECT_EQ(50*2, TAIntIV[1]);
  EXPECT_EQ(700*2, TAIntIV[2]);
  EXPECT_EQ(900*2, TAIntIV[3]);

  // Test vertical flt iterator for node 3, 50, 700, 900
  Graph->AddFltAttrDatN(5, 3.41, attr3);
  Graph->AddFltAttrDatN(50, 2.718, attr3);
  Graph->AddFltAttrDatN(300, 150.0, attr3);
  Graph->AddFltAttrDatN(653, 563, attr3);

  EXPECT_EQ(3.41, Graph->GetNAFltI(attr3, 5).GetDat());
  EXPECT_EQ(2.718, Graph->GetNAFltI(attr3, 50).GetDat());

  NodeId = 0;
  DefNodes = 0;
  TVec<TFlt> TAFltIV = TVec<TFlt>();

  for (TNEANet::TAFltI NI = Graph->BegNAFltI(attr3);
    NI < Graph->EndNAFltI(attr3); NI++) {
    if (NI.GetDat() != TFlt::Mn) {
      NodeId++;
      TAFltIV.Add(NI.GetDat());
    } else {
      DefNodes++;
    }
  }

  EXPECT_EQ(4, NodeId);
  EXPECT_EQ(NNodes - 4, DefNodes);
  TAFltIV.Sort();
  EXPECT_EQ(2.718, TAFltIV[0]);
  EXPECT_EQ(3.41, TAFltIV[1]);
  EXPECT_EQ(150.0, TAFltIV[2]);
  EXPECT_EQ(563.0, TAFltIV[3]);

  // Test vertical str iterator for node 3, 50, 700, 900
  Graph->AddStrAttrDatN(10, "abc", attr1);
//.........这里部分代码省略.........