dimension

问题 I need to create a matrix which size is 10000x100000. My RAM is 4GB. It works till the 25th iteration (debug), but after 25th iteration I get an error "bad allocation" however only 25% of RAM is used which means the problem is not related with memory. So what can I do? EDIT: int **arr; arr=new int*[10000]; for(i=0;i<10000;i++) arr[i]=new int[100000]; My allocation is above. 回答1: If you're compiling for x64, you shouldn't have any problems. If you're compiling for x86 (most likely), you can

问题 This question already has an answer here : Closed 7 years ago . Possible Duplicate: Sort a multi-dimensional array How to sort the following array? array_multisort doesn't seem to do the job. Array ( [2009] => Array ( [name] => 2009 [20100923WO2010107543A2] => 20100923WO2010107543A2 ) [2006] => Array ( [name] => 2006 [20080403US20080078500A1] => 20080403US20080078500A1 ) [1984] => Array ( [name] => 1984 ) ) Sorted Form Array ( [1984] => Array ( [name] => 1984 ) [2006] => Array ( [name] =>

问题 I'm quite confused as to how I'm supposed to be adding dimension members to my data warehouse. Let's say that TOWN_NAME is a dimension table that links town_Id to a town_name. So, now, I have 1000 customer names, and they are from 9 towns. Suddenly, in my next ETL process, a customer ends up being added whose town is not amongst that 9 towns i have in my dimension. So I need to add a member to my dimension table. Which step/process in BIDS or DATA TOOLS (BIDS 2012) would have I to use? How

问题 Currently using a custom dimension to pass the author name of each article viewed. The author name is appearing in GA but the only problem is that the number of pageviews are significantly reduced when we apply the custom dimension to a report. For example: /article/example : 1900 pageviews (without author name in the report) /article/example "Bob Smith" : 800 pageviews (when using author name in the report) Using GTM debug, we can see the custom dimension is being passed with the author name

问题 In order to increase speed of my code when looping thought values of a datarange of a Listobject I want to pass the values of a column to an array and loop through the array instead of looping throught the values of the Listobject. I got an insight here From there I elaborated this code. 'passing the list object to a variable Dim SCtbl As ListObject Set SCtbl = ThisWorkbook.Worksheets("sc").ListObjects(1) 'dimensioning the array (as variant) Dim ListofSC As Variant ListofSC = SCtbl

问题 I have a 3 -by- 3 -by- 3 struct, struct , with fields bit . In each field I have two values. I want to divide values of each field by a summation of values of each field in dimension 3 for example if struct(1,1,1).bit=[2, 3] struct(1,1,2).bit=[4, 5] struct(1,1,3).bit=[6, 7] my new struct values must be for example: newstruct(1,1,1).bit=[2/(2+4+6) , 3/(3+5+7)] newstruct(1,1,2).bit=[4/(2+4+6) , 5/(3+5+7)] newstruct(1,1,3).bit=[6/(2+4+6) , 7/(3+5+7)] 回答1: As it is MATLAB, you should possibly go

问题 Is its possible in gnuplot to plot and fit a function that has two variables? For example, a physical function that depends on hight h and Temperature T where the T dependence should only be calculated but not plotted (for f , h and T experimental data exists): f(h,T) = a * h * (1 + alpha * T) + f0 where a and f0 are to be determined by the fit, alpha is known. In the end I need a plot with f on the y-axis and h on the x-axis. The whole T dependence should be taken care of in the fit, but I

问题 There is a question How to make ConstraintLayout work with percentage values? and its answers show how to use the percentages: <android.support.constraint.Guideline android:id="@+id/guideline" android:layout_width="1dp" android:layout_height="wrap_content" android:orientation="vertical" app:layout_constraintGuide_percent="0.5"/> But if you don't want to hardcode the percentage but use a dimen resource it does not work. <!-- inside the layout --> <android.support.constraint.Guideline android

问题 I'm trying to estimate the fractal dimension of a complex(real-world) network. I have the nodes of edges forming the complex network in a text file. I tried to implement the Box Counting algorithm(but didn't find an efficient implementation of the algorithm, which works better for large networks) , but later after looking @ the wiki page on Fractal dimension on networks, I found that there is another approach for this, namely the Cluster Growing Method. Is this algorithm implemented in any

问题 I'm using SSAS Visual Studio 2010. I have a dimension with a compound key pointing to a fact table. To begin with, the compound key contained three keys, and now I need to add a fourth. I did this in the DSV by clicking between the arrow between them and selecting the new fields from the dropdown menus. So far so good. I saved the DSV and reprocessed my cubes. Here's where the problem starts: I noticed only very minor changes in the relevant reports... I expected either wholesale changes or