内容导航:
衡量观测精度的指标有:
1.
中误差;
2.
相对中误差;
3.
极限误差。
军事上用的是密位。
规零,也就是回到起点角度,读数和开始的读数之间有个差,这个差就是规零差。
话说规范有没规定高等级的测量是要N个队伍操作,按差异求结论的么?
就是N测回,也不一定能达到很高精度吧,那么用N个队伍分别做呢?
设j6经纬仪室外一测回的方向中误差为m1方=±6“,由于角值是两个
方向值之差,故一测回角值的中误差为:m1角=m1方乘以根号2=正负6乘以根号2=正负8.5
一测回方向值是两个半测回方向值的平均值,故半测回方向值的中
误差为:m半方=m1方乘以根号2=正负6乘以根号2=正负8.5
因归零差是半测回中零方向两次观测值之差,故归零差中误差为:m归零=m半方乘以根号2=正负12
取限差为中误差的2倍,故归零差限差为±24
″。
同一方向值各测回较差是两个一测回一方向值之差,故同一方向值
各测回较差的中误差为:m方d=m1方乘以根号2=正负8.5
取限差为中误差的2倍,则同一方向值各测回较差的限差为±17“
{ok.奉献一个很准的无未来函数的短线买点指标给楼主}
O1:(SUM(EMA((CLOSE+LOW)/2,1)/3,3)),COLOR00FFFF,LINICK1;
O2:EMA(O1,3),COLORFF00FF,LINICK1;
O3:EMA(O2,3),COLOR00FF00,LINICK1;
AAA:=CROSS(O1,O2) AND CROSS(O2,O3) AND CROSS(O1,O3),LINICK1;
DRAWICON(AAA,O1*0.95,17);
MMM:=MA(CLOSE,20);
PEAK1:=CLOSE>REF(CLOSE,1) AND CLOSE>REF(CLOSE,2);
VAR2:=REF(PEAK1,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2);
VAR3:=REF(VAR2,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2);
VAR4:=REF(VAR3,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2);
VAR5:=REF(VAR4,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2);
VAR6:=REF(VAR5,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2);
VAR7:=REF(VAR6,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2);
VAR8:=REF(VAR7,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2);
VAR9:=REF(VAR8,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2);
VARA:=REF(VAR9,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2);
VARB:=REF(VARA,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2);
VARC:=REF(VARB,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2);
VARD:=CLOSE<REF(CLOSE,1) AND CLOSE<REF(CLOSE,2);
VARE:=REF(VARD,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2);
VARF:=REF(VARE,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2);
VAR10:=REF(VARF,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2);
VAR11:=REF(VAR10,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2);
VAR12:=REF(VAR11,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2);
VAR13:=REF(VAR12,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2);
VAR14:=REF(VAR13,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2);
VAR15:=REF(VAR14,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2);
VAR16:=REF(VAR15,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2);
VAR17:=REF(VAR16,1) AND CLOSE<=REF(CLOSE,1) AND CLOSE>=REF(CLOSE,2);
VAR18:=REF(VAR17,1) AND CLOSE>=REF(CLOSE,1) AND CLOSE<=REF(CLOSE,2);
VAR19:=REF(VARD OR VARE OR VARF OR VAR10 OR VAR11 OR VAR12 OR VAR13 OR
VAR14 OR VAR15 OR VAR16 OR VAR17 OR VAR18,1) AND PEAK1;
VAR1A:=REF(PEAK1 OR VAR2 OR VAR3 OR VAR4 OR VAR5 OR VAR6 OR VAR7 OR
VAR8 OR VAR9 OR VARA OR VARB OR VARC,1) AND VARD;
STICKLINE(VAR1A,REF(CLOSE,1),REF(CLOSE,2),3.2,0),COLORFF3300;
STICKLINE(VAR1A,REF(CLOSE,1),REF(CLOSE,2),2.7,0),COLORFF5500;
STICKLINE(VAR1A,REF(CLOSE,1),REF(CLOSE,2),2.1,0),COLORFF7700;
STICKLINE(VAR1A,REF(CLOSE,1),REF(CLOSE,2),1.5,0),COLORFF9900;
STICKLINE(VAR1A,REF(CLOSE,1),REF(CLOSE,2),0.9,0),COLORFFBB00;
STICKLINE(VAR1A,REF(CLOSE,1),REF(CLOSE,2),0.3,0),COLORFFDD00;
DRAWICON(FILTER(VAR19=1,5),LOW*0.995,9);{通达信只要把最后的数字8改成自己喜欢的图形对应的数字}
DRAWICON(FILTER(VAR1A=1,5),HIGH*1.008,0);{通达信只要把最后的数字5改成自己喜欢的图形对应的数字}
DRAWICON(FILTER(VAR1A=1,5),HIGH*1.03,15);{通达信只要把最后的数字3改成自己喜欢的图形对应的数字};
如果你资金不多的话,想找1-2元的股票是没问题的,但一般都属于业绩差的股票才这么便宜。你可以看看:600870 600180 600217 600076 600868 000034 000613 这些都是2块钱左右。