conditional-statements

问题 If I simply copy and paste an HTML code provided by YouTube into a .Rmd file, this works fine for gitbook output. Here is an example of the code <iframe width="560" height="315" src="https://www.youtube.com/embed/9AI3BkKQhn0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen> </iframe> However, I get error messages for PDF and EPUB outputs. In order to avoid this, I thought I could use conditional compilation, e.g. ```{r} if (knitr

问题 This question derives from this question asked earlier. I am making a Soap request, and I am receiving the response as either an Array, or String. [print] [ "M4205N", "M4206U" ] [print] M5967H When I get the response as an array, I figured out how to loop through it, and pass the values to another request. However, sometimes the response will come back as a single Code, and it will be returned as a String. In that case, I cannot perform the same logic as I did with the array. I've read about

问题 This question derives from this question asked earlier. I am making a Soap request, and I am receiving the response as either an Array, or String. [print] [ "M4205N", "M4206U" ] [print] M5967H When I get the response as an array, I figured out how to loop through it, and pass the values to another request. However, sometimes the response will come back as a single Code, and it will be returned as a String. In that case, I cannot perform the same logic as I did with the array. I've read about

问题 I have dataframe: ID,used_at,active_seconds,subdomain,visiting,category 123,2016-02-05 19:39:21,2,yandex.ru,2,Computers 123,2016-02-05 19:43:01,1,mail.yandex.ru,2,Computers 123,2016-02-05 19:43:13,6,mail.yandex.ru,2,Computers 234,2016-02-05 19:46:09,16,avito.ru,2,Automobiles 234,2016-02-05 19:48:36,21,avito.ru,2,Automobiles 345,2016-02-05 19:48:59,58,avito.ru,2,Automobiles 345,2016-02-05 19:51:21,4,avito.ru,2,Automobiles 345,2016-02-05 19:58:55,4,disk.yandex.ru,2,Computers 345,2016-02-05 19

问题 Assume I have a function which uses a loop over integer i . Now something goes wrong and I assume the error happens when i=5 . Now I can step through every single step (what I did up to now). But now I read about the condition and text argument of browser and debug : text a text string that can be retrieved when the browser is entered. condition a condition that can be retrieved when the browser is entered. Is it possible to use the arguments in a way it works as I want? Here is an example.

问题 Assume I have a function which uses a loop over integer i . Now something goes wrong and I assume the error happens when i=5 . Now I can step through every single step (what I did up to now). But now I read about the condition and text argument of browser and debug : text a text string that can be retrieved when the browser is entered. condition a condition that can be retrieved when the browser is entered. Is it possible to use the arguments in a way it works as I want? Here is an example.

问题 I get this error when I attempt to compare to variable names such as: compare = Search1.where(Search1UK>Search1DE) compare compare.fillna(0) 'Search1UK' and 'Search1DE' are both variable names in which I have assigned a name to identify columns within different data frames. Anyone could help on this please? 回答1: try: compare = Search1.where(Search1['Search1UK']>Search1['Search1DE']) 来源： https://stackoverflow.com/questions/55163796/array-conditional-must-be-same-shape-as-self

问题 I am practicing swift programing by making an app that holds customers' data. The app has several text fields where people are supposed to type their name, email address, phone number, and quantity of products purchased. Then with a 'submit' button they save that information into the data base. However, if one of the fields is empty, an error should be thrown and a message should appear to the user letting him/her know that one of the fields empty. The problem is that even if the textfield is

问题 Using openpyxl I am creating python script that will loop through the rows of data and find rows in which some of the column are empty - these will be deleted. The range of rows is 3 to 1800. I am not excatly sure how to delete these row - please see code I have come up with so far. What I was trying to achieve is to iterate through the rows and check if columns 4, 7 values are set to None. If True I wanted to return row number into suitable collection (need advise which one would be best for

问题 Using openpyxl I am creating python script that will loop through the rows of data and find rows in which some of the column are empty - these will be deleted. The range of rows is 3 to 1800. I am not excatly sure how to delete these row - please see code I have come up with so far. What I was trying to achieve is to iterate through the rows and check if columns 4, 7 values are set to None. If True I wanted to return row number into suitable collection (need advise which one would be best for