function

问题 i have the ebook for describe runge-kutta method, and its say i need module printSoln def printSoln(X,Y,freq): def printHead(n): print("\n x ",end=" ") for i in range (n): print(" y[",i,"] ",end=" ") print() def printLine(x,y,n): print("{:13.4e}".format(x),end=" ") for i in range (n): print("{:13.4e}".format(y[i]),end=" ") print() m = len(Y) try: n = len(Y[0]) except TypeError: n = 1 if freq == 0: freq = m printHead(n) for i in range(0,m,freq): printLine(X[i],Y[i],n) if i != m - 1: printLine

问题 As the title says, is the print() function in python a void function? I thought the print() function returns and prints to screen what is passed into it. Now that I think about it, it seems like it doesn't return anything and is indeed a void function. Can someone verify this for me please? Thanks in advance! I've tried the following: some_variable = print() print(some_variable) None 回答1: It does not return a value, which is the same as returning None. You won't find it explicitly in the

问题 I think this is more of a python question, then a kivy question. class Keyboard is sharing a method from class GUI. I created an GUI instance called "self.a" to connected the 2 classes in class Keyboard. Also, I created a keyboard class instance, "self.key in class MainApp. when I use this method, "print ("Return button is pressed")" the "return" button was able to do the print statement. I understand why it works. When I use the "self.a.up()" in the method, the return button does not called

问题 Having searched around, i only found one other close question, but no valid answer. I would like to automatically change the order status in WooCommerce from Completed to Cancelled after 24 hours. Ideally this would only be for orders that contain a Virtual Product too. Ive tried the answer given here, but couldnt get it to work: Automatically change WooCommerce order status after specific time has passed? Would the previous answers code need to be run regularly in a cron job or something

问题 i'm getting this even using 'isset': Notice: Undefined index it's giving the error at: returnifisset($_COOKIE["miceusername"], ' value="', '"'); even though i am checking if the cookie isset or not. The function is: function returnifisset($variable, $first = '', $last = ''){ if(isset($variable) and !empty($variable)){ return $first.$variable.$last; } } how i should modify this function to make it work and not give that error! 回答1: You are actually accessing the variable by passing it with

问题 This is my function: Function stageValueVariance(stage As String, valCol As Long) For i = 2 To offlineHeight If Application.VLookup(offline.ListColumns(1).Range(i).value, bce.DataBodyRange, valCol, 0) <> offline.ListColumns(valCol).Range(i).value Then foundID = Application.WorksheetFunction.Match(offline.ListColumns(1).Range(i), oldOut.ListColumns(1).DataBodyRange, 0) If foundID = 0 Then foundID = Application.WorksheetFunction.Match(offline.ListColumns(1).Range(i), valComp.ListColumns(1)

问题 I have an azure function triggered by Cosmos DB. I am getting the data from the JSON file and send it over to my SQL database on Azure. I wanted to know if I can connect directly to the Azure SQL using my Visual Studio? I have connected to it once through the portal, but I can't see that I am connected to my database under View/Cloud Explorer in Visual Studio. The database is only listed under View/SQL Server Object Explorer . I assume this connection is through my local machine, and not

问题 I have a data frame similar to the one created by the code below. In this example, measurements of 5 variables are taken on are 30 individuals represented by ID . The individuals can be separated by any of three grouping variables: GroupVar1,GroupVar2,GroupVar3 . For each of the grouping variables, I need to conduct an ANOVA for each of the 5 variables, and return the results of each (possibly onto a pdf or separate document?). How can I write a function, or use iteration, to handle this

问题 While writing Bash functions for string replacements I have encountered a strange behaviour when using xargs. This is actually driving me mad currently as I cannot get it to work. Fortunately I have been able to nail it down to the following simple example: Define a simple function which doubles every character of the given parameter: function subs { echo $1 | sed -E "s/(.)/\1\1/g"; } Call the function: echo $(subs "ABC") As expected the output is: AABBCC Now call the function using xargs:

问题 Got this: import pandas as pd from df import df import matplotlib as plt import seaborn as sns class Data_load: def __init__(self, df): self.df = pd.read_csv(df, delimiter=';') # Data information section def get_EDA_columns(self): return self.df.columns def get_EDA_info(self): return self.df.info() def get_EDA_describe(self): return self.df.describe() def get_EDA_shape(self): return self.df.shape def get_EDA_value_counts(self): return self.df.value_counts() def get_EDA_isnull(self): return