Redeclared defined above without usage (PyCharm)-CodePudding

Below is my python script. I don't understand why the code cannot be processed with the error statement that the code below the else condition has a syntax error and PyCharm claims that I have "Redeclared 'pi0_t' defined above without usage" with the last line of code.

p=0.78
q=0.99
r=1
R=2.3
d=0.65
e=0.1
n=1.5
k=2.7

p1s_bar= 1/((1-e)* (1  p* (R-1)/((1-p)* q* r)))
p1lt_bar= 1/(1  p* (d*R- 1)/((1- p)* d* q* r))
chi_s_floor= k/(p1lt_bar* q* r)/ (k/(p1lt_bar* q* r)  n/(1- (1- e)* p1lt_bar))
chi_s_bar= k/(p1s_bar* q* r)/ (k/(p1s_bar* q* r)  n/(1- (1- e)* p1s_bar))

chi_s_data= np.arange(0, 1, 0.001)
pi0_s_data= []
pi0_t_data= []
agg_data= []
for chi_s in chi_s_data:
    if chi_s< chi_s_floor:
        pi0_s= n* p* ((R - (1-e)*p1lt_bar)/(1-(1-e)*p1lt_bar))
        pi0_t= p* (d* R*(n k) - k)   (1-p)*(d*q*r*(n k)-k)
    elif chi_s>= chi_s_floor and chi_s<= chi_s_bar:
        pi0_s= n* p* R  (p* k / q*r) * (1-e) * (R- 1)* (1- chi_s)/chi_s
        pi0_t= n* p* d* R  (1- p)* (d*q*r*n  (d*(1- e)* q* r- 1)* k  d* q* r* n* chi_s* q* r/(1- chi_s)
    else:
        pi0_s= n* p* (R - (1-e)* p1lt_bar) / (1 - (1 - e) * p1lt_bar)
        pi0_t= p* (d* R * ( n   k ) - k)   (1-p) * (d* q* r* (n   k) - k)

CodePudding user response：

When you define pi0_t in the elif statement you are missing a closing parenthesis at the end of the line. Change it to

pi0_t= n* p* d* R  (1- p)* (d*q*r*n  (d*(1- e)* q* r- 1)* k  d* q* r* n* chi_s* q* r/(1- chi_s))

CodePudding user response：

It looks like there is a missing operator or parenthesis on the second-to-last line of your script, specifically in the following part:

pi0_t= n* p* d* R  (1- p)* (d*q*r*n  (d*(1- e)* q* r- 1)* k  d* q* r* n* chi_s* q* r/(1- chi_s)

It seems that there is a missing operator between d* q* r* n* chi_s and q* r/(1- chi_s). This is causing a syntax error and the script cannot run.

Regarding the error message "Redeclared 'pi0_t' defined above without usage", it means that the variable pi0_t has already been defined earlier in the script and it is being defined again without being used in between those two definitions. To fix this error, you should ensure that you are using the variable pi0_t in between those two definitions, or remove the first definition of pi0_t if it is not needed.