minimum

问题 I have two data frames with different sizes. I want to replace the values of the first data frame by the values of the second data frame only if the values of the second data frame are less than the values of the first data frame. In other words I want to find the minimum values of the two data frames for each position for matching indices of the two dataframes. df1: A B C 0 0 12 7 1 15 20 0 2 7 0 3 df2: A B C 1 4 25 8 2 0 0 5 result df: A B C 0 0 12 7 1 4 20 0 2 0 0 3 回答1: Use: pd.concat(

问题 I have two data frames with different sizes. I want to replace the values of the first data frame by the values of the second data frame only if the values of the second data frame are less than the values of the first data frame. In other words I want to find the minimum values of the two data frames for each position for matching indices of the two dataframes. df1: A B C 0 0 12 7 1 15 20 0 2 7 0 3 df2: A B C 1 4 25 8 2 0 0 5 result df: A B C 0 0 12 7 1 4 20 0 2 0 0 3 回答1: Use: pd.concat(

问题 Does OpenMP support an atomic minimum for C++11? If OpenMP has no portable method: Is there some way of doing it using a x86 or amd64 feature? In the OpenMP specifications I found nothing for C++ but the Fortran version seems to support it. See 2.8.5 of the v3.1 for the details. For C++ it states binop is one of +, *, -, /, &, ^, |, <<, or >>. but for Fortran it states intrinsic_procedure_name is one of MAX, MIN, IAND, IOR, or IEOR. In case you are interested in more context: I am looking for

问题 Does OpenMP support an atomic minimum for C++11? If OpenMP has no portable method: Is there some way of doing it using a x86 or amd64 feature? In the OpenMP specifications I found nothing for C++ but the Fortran version seems to support it. See 2.8.5 of the v3.1 for the details. For C++ it states binop is one of +, *, -, /, &, ^, |, <<, or >>. but for Fortran it states intrinsic_procedure_name is one of MAX, MIN, IAND, IOR, or IEOR. In case you are interested in more context: I am looking for

问题 Does OpenMP support an atomic minimum for C++11? If OpenMP has no portable method: Is there some way of doing it using a x86 or amd64 feature? In the OpenMP specifications I found nothing for C++ but the Fortran version seems to support it. See 2.8.5 of the v3.1 for the details. For C++ it states binop is one of +, *, -, /, &, ^, |, <<, or >>. but for Fortran it states intrinsic_procedure_name is one of MAX, MIN, IAND, IOR, or IEOR. In case you are interested in more context: I am looking for

问题 i need to print out average height from a .txt file. How do I write it in an easy way? The .txt file has these numbers: 12 14 59 48 45 12 47 65 152 this is what i've got so far: import math text = open(r'stuff.txt').read() data = [] with open(r'stuff.txt') as f: for line in f: fields = line.split() rowdata = map(float, fields) data.extend(rowdata) biggest = min(data) smallest = max(data) print(biggest - smallest) 回答1: To compute the average of some numbers, you should sum them up and then

问题 Ok, so I've been trying to wrap my head around recursion in Java and I can accomplish easy tasks such as sum, reversing etc. but I have been struggling to do this exercise: I'm trying to find the minimum number in an array using recursion but keep getting an answer of 0.0. My understanding for recursion is that there I need to increment one element and then provide a base case that will end the recursion. I think I'm messing up when I have to return a value and when is best to call the

问题 there. I am going to generate 10^6 random points in matlab with this particular characters. the points should be inside a sphere with radious 25, the are 3-D so we have x, y, z or r, theta, phi. there is a minimum distance between each points. first, i decided to generate points and then check the distances, then omit points with do not have these condition. but, it may omit many of points. another way is to use RSA (Random Sequential Addition), it means generate points one by one with this

问题 hello i have a list like this: [[3,[a,b,c,d]],[2,[a,b,d]],[5,[d,e,f]]] list of lists... i want to find the minimum number on inner list in this case i want to return D=2 and L=[a,b,d] i tried this code: minway([[N|L]],N,L). minway([[M|L1]|L2],D,_):- M<D, minway(L2,M,L1). minway([[M|_]|L2],D,L):- M>=D, minway(L2,D,L). but i got error: </2: Arguments are not sufficiently instantiated Exception: (8) minway([[3,[a,b,c,d]],[2,[a,b,d]],[5,[d,e,f]]], _G7777, _G7778) ? creep for this run sentence:

问题 hello i have a list like this: [[3,[a,b,c,d]],[2,[a,b,d]],[5,[d,e,f]]] list of lists... i want to find the minimum number on inner list in this case i want to return D=2 and L=[a,b,d] i tried this code: minway([[N|L]],N,L). minway([[M|L1]|L2],D,_):- M<D, minway(L2,M,L1). minway([[M|_]|L2],D,L):- M>=D, minway(L2,D,L). but i got error: </2: Arguments are not sufficiently instantiated Exception: (8) minway([[3,[a,b,c,d]],[2,[a,b,d]],[5,[d,e,f]]], _G7777, _G7778) ? creep for this run sentence: