本文整理汇总了Java中water.fvec.Frame.anyVec方法的典型用法代码示例。如果您正苦于以下问题：Java Frame.anyVec方法的具体用法？Java Frame.anyVec怎么用？Java Frame.anyVec使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类water.fvec.Frame的用法示例。
在下文中一共展示了Frame.anyVec方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: apply
import water.fvec.Frame; //导入方法依赖的package包/类
@Override Val apply( Env env, Env.StackHelp stk, AST asts[] ) {
Frame ary = stk.track(asts[1].exec(env)).getFrame();
if( ary.numCols() != 1 ) throw new IllegalArgumentException("character requires a single column");
Vec v0 = ary.anyVec();
Vec v1 = v0.isString() ? null : v0.toStringVec(); // toCategoricalVec() creates a new vec --> must be cleaned up!
Frame fr = new Frame(ary._names, new Vec[]{v1 == null ? v0.makeCopy(null) : v1});
return new ValFrame(fr);
}
示例2: apply
import water.fvec.Frame; //导入方法依赖的package包/类
@Override Val apply( Env env, Env.StackHelp stk, AST asts[] ) {
// stack is [ ..., ary, breaks]
// handle the breaks
Frame fr2;
Frame f = stk.track(asts[1].exec(env)).getFrame();
if( f.numCols() != 1) throw new IllegalArgumentException("Hist only applies to single numeric columns.");
Vec vec = f.anyVec();
if( !vec.isNumeric() ) throw new IllegalArgumentException("Hist only applies to single numeric columns.");
AST a = asts[2];
String algo=null;
int numBreaks=-1;
double[] breaks=null;
if( a instanceof ASTStr ) algo=a.str().toLowerCase();
else if( a instanceof ASTNumList ) breaks=((ASTNumList)a).expand();
else if( a instanceof ASTNum ) numBreaks = (int)a.exec(env).getNum();
HistTask t;
double h;
double x1=vec.max();
double x0=vec.min();
if( breaks != null ) t = new HistTask(breaks,-1,-1/*ignored if _h==-1*/).doAll(vec);
else if( algo!=null ) {
switch (algo) {
case "sturges": numBreaks = sturges(vec); h=(x1-x0)/numBreaks; break;
case "rice": numBreaks = rice(vec); h=(x1-x0)/numBreaks; break;
case "sqrt": numBreaks = sqrt(vec); h=(x1-x0)/numBreaks; break;
case "doane": numBreaks = doane(vec); h=(x1-x0)/numBreaks; break;
case "scott": h=scotts_h(vec); numBreaks = scott(vec,h); break; // special bin width computation
case "fd": h=fds_h(vec); numBreaks = fd(vec, h); break; // special bin width computation
default: numBreaks = sturges(vec); h=(x1-x0)/numBreaks; // just do sturges even if junk passed in
}
t = new HistTask(computeCuts(vec,numBreaks),h,x0).doAll(vec);
}
else {
h = (x1-x0)/numBreaks;
t = new HistTask(computeCuts(vec,numBreaks),h,x0).doAll(vec);
}
// wanna make a new frame here [breaks,counts,mids]
final double[] brks=t._breaks;
final long [] cnts=t._counts;
final double[] mids_true=t._mids;
final double[] mids = new double[t._breaks.length-1];
for(int i=1;i<brks.length;++i) mids[i-1] = .5*(t._breaks[i-1]+t._breaks[i]);
Vec layoutVec = Vec.makeZero(brks.length);
fr2 = new MRTask() {
@Override public void map(Chunk[] c, NewChunk[] nc) {
int start = (int)c[0].start();
for(int i=0;i<c[0]._len;++i) {
nc[0].addNum(brks[i+start]);
if(i==0) {
nc[1].addNA();
nc[2].addNA();
nc[3].addNA();
} else {
nc[1].addNum(cnts[(i-1)+start]);
nc[2].addNum(mids_true[(i-1)+start]);
nc[3].addNum(mids[(i-1)+start]);
}
}
}
}.doAll_numericResult(4, new Frame(layoutVec)).outputFrame(null, new String[]{"breaks", "counts", "mids_true", "mids"},null);
layoutVec.remove();
return new ValFrame(fr2);
}