Suppose you train your random forest classifier on 70% of the data you have, then it will help your classifier to identify useful attributes or features for the random forest classifier from this training data. But there are many hyper parameters e.g. depth of a Random Forest classifier, which affects the performance of RF classifier. … Read more
Your code as posted doesn’t run. And, even after I guess at how to fix it to run, it does not actually do what you claim. But I’m pretty sure I know where the error is anyway. This code does not return an empty string, but a “: text = div.get_text().strip().split(” “, 1)[0].strip() … and … Read more
Thanks Everyone. Sorry that I’m not clear. I just want to explore PANDAS more. I know this isn’t going to be useful in any of the real world situations but i’m curious. Below is the way I’m able to achieve what I was looking for. Please let me know if there are any other efficient … Read more
You can only add variables together if both variables are either an integer or a string, but not a boolean (well, you kinda can but it’s not effective). For example: >>> var = 1 >>> var2 = 4 >>> var + var2 5 >>> stringvar=”Hello ” >>> stringvar2 = ‘world.’ >>> stringvar + stringvar2 ‘Hello … Read more
First of all, for information on basic syntax you should probably refer to a Python tutorial. I’ll quote the official documentation on compound statements: Compound statements consist of one or more ‘clauses.’ A clause consists of a header and a ‘suite.’ The clause headers of a particular compound statement are all at the same indentation … Read more
Since the possible range of the values r, g, b is in 0 – 255, max(x, 0) is to prevent the value to drop below 0 and min(255, max(x, 0)) is to prevent the value to go above 255. Example: if r = -20, max(r, 0) = max(-20, 0) = 0 and if r = … Read more
print(eval(str(“value” + str(x)))) But must not use eval even if you know it’s completely secure. There is always a better way. 6 solved how to transform a string in a variable name ? python [duplicate]
Try this: from selenium import webdriver import time from selenium.webdriver.common.keys import Keys from bs4 import BeautifulSoup from bs4.element import Tag driver = webdriver.Chrome(“C:/Users/RoshanB/Desktop/sentiment1/chromedriver_win32/chromedriver”) driver.get(‘http://www.careratings.com/brief-rationale.aspx’) time.sleep(4) companyArray = [] try: search = driver.find_element_by_name(‘txtSearchCompany_brief’) search.send_keys(“Reliance Capital Limited”) search.send_keys(Keys.RETURN) time.sleep(4) soup = BeautifulSoup(driver.page_source, ‘lxml’) companies = soup.find(“table”,class_=”table1″) for tag in companies.findChildren(): if isinstance(tag, Tag) and tag.name in ‘a’ … Read more
I may have been massively over complicating things here, this appears to do what I want (ignoring the insertion of completely new markets / selection_id’s for now): new_order_list = [] for x in updated_orders: for y in x[‘Live_orders’]: orders_to_update = {} orders_to_update.update({‘Market_id’: x[‘Market_id’], ‘Selection_id’: y[‘selection_id’], ‘live_orders’: y[‘live_orders’]}) new_order_list.append(orders_to_update) for z in new_order_list: for a in … Read more
Sometimes there is a need for everyone to use DynamoDB’s reserved keyword names on their attribute names. In such cases, they can utilize the expression attribute names to map the reserved keyword name with another alternative name. You can use the expression attribute names in your code as like below: … response = table.scan( ExpressionAttributeNames … Read more
Pass the input field parameter in square bracket as dictionary needs square bracket. f=request.FILES[‘filename’] solved how to input csv file into Django [closed]
If you are meaning a setting title of your tkinter window by “this”. You have several options. Option 1 if __name__ == ‘__main__’: your_gui = YourGUI() your_gui.title(‘My Title’) # Set title your_gui.mainloop() Option 2 def __init__(self): # inherit tkinter’s window methods tk.Tk.__init__(self) self.title(‘My Title’) # Set title ……. tk.Button(self, text=”exit!”, command=self.EXITME).grid(row=4, column=0, columnspan=2) Both options … Read more
Start by rewriting the method to take an iterable as an argument: def scene_upload(self, scene): csv_reader = csv.reader(scene, delimiter=”,”, quotechar=”|”) next(csv_reader) # Skip the header for line_count, row in enumerate(csv_reader, 1): self.time_stamp.append(int(row[0])) self.active_func.append(int(row[1])) self.active_func_output.append(row[2]) self.dstream_func.append(int(row[3])) self.dstream_func_aspect.append(row[4]) self.time_tolerance.append(row[5]) In production use, you make the caller responsible for opening the file: filename_scene = filedialog.askopenfilename(initialdir=”https://stackoverflow.com/”, title=”Select file”) print(filename_scene) … Read more
As others have commented the code as given in original question does correctly sleep in a properly configured environment, this answer addresses the logic issue in the time handling by using datetime. The timedelta from subtracting two datetimes does not provide hours and minutes so these are calculated from the seconds. import time, datetime,math d … Read more
From the documentation: The following table summarizes the operator precedence in Python, from lowest precedence (least binding) to highest precedence (most binding). lambda if – else or and not x in, not in, is, is not, <, <=, >, >=, !=, == … So, to answer your question, a == b or c Is equivalent … Read more