lag

问题 This is my first post, so please let me know if I'm not clear enough. Here's what I'm trying to do - this is my dataset. My approach for this is a do loop with a lag but the result is rubbish. data a; input @1 obs @4 mindate mmddyy10. @15 maxdate mmddyy10.; format mindate maxdate date9.; datalines; 1 01/02/2013 01/05/2013 2 01/02/2013 01/05/2013 3 01/02/2013 01/05/2013 4 01/03/2013 01/06/2013 5 02/02/2013 02/08/2013 6 02/02/2013 02/08/2013 7 02/02/2013 02/08/2013 8 03/10/2013 03/11/2013 9 04

问题 I have a table with following data: computed column : current | id | Date (dd/mm/yyyy) | Factor | Actual | Current | |----|-------------------|--------|--------|----------| | 1 | 04/01/2017 | 0.5 | 100 | 100 | | 2 | 04/02/2017 | 0.5 | 120 | 100 | | 3 | 04/03/2017 | 0.5 | 120 | 110 | | 4 | 04/04/2017 | 0.5 | 115 | 115 | | 5 | 04/05/2017 | 0.5 | 125 | 115 | | 6 | 04/06/2017 | 0.5 | 100 | 120 | | 7 | 04/07/2017 | 0.5 | 100 | 110 | Current row = current of previous row + factor * (actual of

问题 I have wrote this code to make seconds (with decisec & centisec) counting up. You've wasted time <span id="alltime">0.00</span> seconds. <script type="text/javascript"> function zeroPad(num,count) { var numZeropad = num + ''; while(numZeropad.length < count) { numZeropad = "0" + numZeropad; } return numZeropad; } function counttwo() { tall = document.getElementById('alltime').innerHTML; if(parseFloat(tall) < 1.00) { tnew2 = tall.replace('0.0','').replace('0.',''); } else { tnew2 = tall

问题 > tempDT <- data.table(colA = c("E","E","A","A","E","A","E") + , lags = c(NA,1,1,2,3,1,2)) > tempDT colA lags 1: E NA 2: E 1 3: A 1 4: A 2 5: E 3 6: A 1 7: E 2 I have column colA , and need to find lags between current row and the previous row whose colA == "E" . Note: if we could find the row reference for the previous row whose colA == "E" , then we could calculate the lags. However, I don't know how to achieve it. 回答1: 1) Define lastEpos which given i returns the position of the last E

问题 I have data that is organized as follows: Invoice_Id Invoice_Line Kit_Flag Part_Number ---------- ------------ -------- ----------- AB12345 1 K KT-1234A AB12345 2 C 1234567 AB12345 3 C 1234568 AB12345 4 C 1234569 AB12345 5 C 1234560 AB12345 6 K KT-1234C AB12345 7 C 1234561 AB12345 8 C 1234562 AB12345 9 K KT-1234Q AB12345 10 C 5678901 AB12345 11 C 1234561 AB12345 12 C 1234562 I am attempting to get the Part_Number value for subsequent lines from the last line where the Kit_Flag was a 'K,'

问题 I'm currently attempting to calculate differences between rows in google big query. I actually have a working query. SELECT id, record_time, level, lag, (level - lag) as diff FROM ( SELECT id, record_time, level, LAG(level) OVER (ORDER BY id, record_time) as lag FROM ( SELECT * FROM TABLE_QUERY(MY_TABLES)) ORDER BY 1, 2 ASC ) GROUP BY 1, 2, 3, 4 ORDER BY 1, 2 ASC But I'm working with big data and sometimes I have memory limit warning that does not let me execute the query. So, I would like to

问题 I am currently testing out all the features that a need in my game on the Android platform. I have only modified the hello-gl2 sample code, and added some textures, VBO's, FBO's and simple shaders in two rendering passes. The thing is that when I let the app run with out touching the screen, i have about 35-45 fps. But if I start touching the screen continuously, the rendering starts to lag! So is this a problem because input and rendering is in the same thread (as a thinks it is?), is it

问题 I want to check overlap of data, here is data ID <- c(rep(1,3), rep(3, 5), rep(4,4),rep(5,5)) Begin <- c(0,2.5,3,7,8,7,25,25,10,15,17,20,1,NA,10,11,13) End <- c(1.5,3.5,6,12,8,11,29,35, 12,19,NA,28,5,20,30,20,25) df <- data.frame(ID, Begin, End) df ID Begin End 1 1 0.0 1.5 2 1 2.5 3.5 3 1 3.0 6.0* 4 3 7.0 12.0 5 3 8.0 8.0* 6 3 7.0 11.0* 7 3 25.0 29.0 8 3 25.0 35.0* 9 4 10.0 12.0 10 4 15.0 19.0 11 4 17.0 NA* 12 4 20.0 28.0 13 5 1.0 5.0 14 5 NA 20.0 15 5 10.0 30.0 16 5 11.0 20.0* 17 5 13.0 25.0

问题 SOLVED Apparently you need to have the fragment drawables in respective drawable-xhdpi etc and not in drawable. I have coded a ViewPager with three fragments that works flawlessly on LG G2, Sony Xperis S, Nexus4 and 5. But on the Samsung S4 it's impossible to swipe left/right without major lag, we have tested on 4 different S4's with the same resault. public class ViewPagerMainActivity extends FragmentActivity { PageIndicator mIndicator; int mViewPager; private AutoScrollViewPager viewPager;

问题 I'm building an custom keyboard, everything is fine now, except when i'm using AssistiveTouch during my custom keyboard is enabled, the animation of AssistiveTouch is little bit laggy (slow zoom in , zoom out) when tap to open it. I tested on iPhone 4s and iPhone 6 , same trouble, so i think is not about device hardware or resource consume. Anyone having same trouble or know reason? and how to solve it ? 回答1: I found reason by myself. that because of shadow. i added shadow for each button,