data is the dataframe, of stock data, including the stock symbol and trading date. then I want to eliminate the data that the trading day is less than 15 days per month. the question now is: I have obtained the dataframe2, of less than 15 days per mon...
import pandas as pd word = pd.read_table ( test.txt , encoding = utf-8 , names = [ query ]) what does the query in the names here mean? header: int, list of ints, default infer Row number (s) to use as the column names, and the s...
there are two sets of data that make two dataframe, with the same row and column tags want to know how to get two dataframe to fill the missing values with each other. ...
how to deal with decoding errors when reading files? ...
currently I have a piece of code that spends most of its time on the above two sentences of data filtering in dataframe. temp_df = df [df [ "data_date "] .isin (date_list)] temp = temp_df [rule [2]] [temp_df [ "data_date "] = = d] at present, it tak...
when using vue-cli to build a project, iframe, is used in app.vue but the iframe does not display correctly, but the current page is displayed, that is, the current page is nested on the current page, and the nesting will loop until it crashes: App.vueu...
I d like to ask that the node.js service can be stopped locally through npm start startup, Ctrl + C. how to start and stop on the server after using pm2 start. bin www, this server will never stop, and that server can be accessed all the time. ...
how to change the name of x marked in a white box? I ve configured the name on the X axis to "xxxx ", but it s still-x on this card. ...
I want to do a form check so that it can work: flag: Cannot read property invalid of undefined at Object.eval [as updateDirectives] (EditMemberComponent.html:9) I judge that it is the reason why the attributes of name are not automatically gen...
as shown in the picture, why is this? I just installed it. Those on Baidu have not been used. I have also changed those 127s. I have not used them all. ...