the source of the problem: now both in the book and online are to divide a bunch of data sets with known prediction results into test sets and training sets, and then look at the accuracy between the prediction results and the real value, and report wha...
problem description 1 3 2 4 6 5 7 9 8 10 from top to bottom, you can only take one step on the left (L) or right (R) at a time, and then add up the numbers to find the path with the maximum value and the maximum value. how to write this algorith...
es6 is set in webstorm : Chrome ...
data table test has the following data {name: a , parent_key: 1,value: 11}, {name: b , parent_key: 3,value: 12}, {name: c , parent_key: 3,value: 13}, {name: d , parent_key: 3,value: 14}, {name: e , parent_key: 2,value: 15}, {name: f ...
the event onclick is bound in the way of native JavaScript object binding, but the actual effect is similar to that of onload . wants a mouse click button pop-up prompt, but it actually pops up as soon as is loaded on the page. click has no effec...
ask a question about Linux pipes for example, the command cat a.log | head if the a.log size is 1T, how is this command executed? how does the program cat execute after head prints the first ten lines? where is the data that is not written to the p...
for example, the details page, after sharing, other people open, can only see this page, I did not find a useful way to set API back to a route. You have to write it on the page? ...