help needed for coding ma slope

[[Deleted]]

hi,

i need some help. i use the following indicator on metastock but i am not able to code it

at mt4. is there any talented one to help me, it would be awesome. i will be grateful honestly.

pds:=Input("EMA periods",2,2520,13);

x:=Input("use Open=1 High=2 Low=3 Close=4 Volume=5 P=6",1,6,4);

x:=If(x=1,O,If(x=2,H,If(x=3,L,If(x=5,V,If(x=6,P,C)))));

EMA:=Mov(x,pds,E);

EMAprev:=Ref(EMA,-1);

y:=Min(EMA,EMAprev)/Max(EMA,EMAprev);

EMAratio:=(If(EMA>EMAprev,2-y,y)-1)*100;

EMAper:=If(EMAratio<0,Atan(EMAratio,1)-360,Atan(EMAratio,1))*10/9;

signal:=Mov(EMAper,pds,E);

EMAper