alpha

use tag to determine the task a slider does if and only if a button is tapped

别来无恙 提交于 2020-03-25 19:19:21
问题 My swift code right now uses a func addBOx to add a series of imageviews to a uiviewcontroller screen. When the user double taps on a single imageview it allows it to change the width of it. When the series of imageviews is on the screen and the user taps the opacity button then if and only if they tap the opacity button then after touch the iamgeview that was added then the slider that was added to changed the width changes the opacity or alpha of the imageview selected. I have added the gif

use tag to determine the task a slider does if and only if a button is tapped

寵の児 提交于 2020-03-25 19:19:11
问题 My swift code right now uses a func addBOx to add a series of imageviews to a uiviewcontroller screen. When the user double taps on a single imageview it allows it to change the width of it. When the series of imageviews is on the screen and the user taps the opacity button then if and only if they tap the opacity button then after touch the iamgeview that was added then the slider that was added to changed the width changes the opacity or alpha of the imageview selected. I have added the gif

r compute composite score and cronbach's alpha for multiple variables in a data frame and add them as columns

六月ゝ 毕业季﹏ 提交于 2020-03-05 06:05:22
问题 I want to calculate a composite score and cronbach's alpha for multiple variables in my data frame and add the results as columns to the data frame. Here is what my data frame looks like: t1pp_1 t1pp_2 t1pp_3 t1pp_4 t1se_1 t1se_2 t1se_3 t1se_4 t1cpl_1 t1cpl_2 t1cpl_3 t1cpl_4 6 3 5 3 4 3 4 3 1 2 2 3 7 4 7 6 5 5 4 5 5 5 5 5 4 4 6 5 4 4 4 4 1 2 3 2 5 5 7 5 4 5 4 5 5 4 4 4 4 2 6 6 4 4 3 4 4 4 2 3 6 5 7 5 1 1 4 4 1 2 2 2 Here is what I tried and of course this doesn't work, but maybe it gives you

一维常物性无源对流导热微分方程数值解(大概)

与世无争的帅哥 提交于 2020-03-04 21:10:36
计算传热学第一次大作业 1 Taylor级数展开法 1.1 网格划分 Taylor级数展开发的网格划分使用外点法 1.2 离散方程表达式 ρ u d ϕ d x = Γ d 2 ϕ d x 2 (1) \rho u\frac{d\phi}{d x}=\Gamma \frac{d^{2}\phi}{dx^{2}}\tag{1} ρ u d x d ϕ ​ = Γ d x 2 d 2 ϕ ​ ( 1 ) 将 ϕ \phi ϕ 分别在 i i i +1点和 i i i -1点在 i i i 点展开 ϕ ( i + 1 ) = ϕ ( i ) + d ϕ d x ∣ i δ x + d 2 ϕ d x 2 ∣ i δ x 2 2 ! + … … (2) \phi(i+1) = \phi(i)+\left.\frac{d\phi}{dx}\right|_{i}\delta x+\left.\frac{d^{2}\phi}{dx^{2}}\right|_{i}\frac{\delta x^{2}}{2!}+…… \tag{2} ϕ ( i + 1 ) = ϕ ( i ) + d x d ϕ ​ ∣ ∣ ∣ ∣ ​ i ​ δ x + d x 2 d 2 ϕ ​ ∣ ∣ ∣ ∣ ​ i ​ 2 ! δ x 2 ​ + … … ( 2 ) ϕ ( i − 1 ) = ϕ ( i ) − d ϕ d

3. 支持向量机(SVM)拉格朗日对偶性(KKT)

点点圈 提交于 2020-02-28 19:15:03
1. 感知机原理(Perceptron) 2. 感知机(Perceptron)基本形式和对偶形式实现 3. 支持向量机(SVM)拉格朗日对偶性(KKT) 4. 支持向量机(SVM)原理 5. 支持向量机(SVM)软间隔 6. 支持向量机(SVM)核函数 1. 前言 在约束最优化问题中,常常利用拉格朗日对偶性将原始问题转化为对偶问题,通过求解对偶问题获得原始问题的解。该方法应用在许多统计学方法中,如最大熵模型、支持向量机。 2. 原始问题 假设 \(f(x),c_i(x),h_j(x)\) 是定义在 \(R^n\) 上的连续可微函数。考虑如下最优化问题 \[ \min_{x\in R^n}f(x)\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;(1) \] \[ s.t. \; c_i(x)\leq0, \; i=1,2,...,k \;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\; (2) \] \[ \;\;\;\;\;\;\; h_j(x)=0, \; j=1,2,...,l \;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\; (3) \] 称此约束最优化问题为 原始最优化问题或原始问题 。

如何从十六进制字符串创建UIColor?

*爱你&永不变心* 提交于 2020-02-26 17:04:04
如何从 十六进制 字符串格式创建 UIColor ,例如 #00FF00 ? #1楼 这是另一种选择。 - (UIColor *)colorWithRGBHex:(UInt32)hex { int r = (hex >> 16) & 0xFF; int g = (hex >> 8) & 0xFF; int b = (hex) & 0xFF; return [UIColor colorWithRed:r / 255.0f green:g / 255.0f blue:b / 255.0f alpha:1.0f]; } #2楼 简洁的解决方案: // Assumes input like "#00FF00" (#RRGGBB). + (UIColor *)colorFromHexString:(NSString *)hexString { unsigned rgbValue = 0; NSScanner *scanner = [NSScanner scannerWithString:hexString]; [scanner setScanLocation:1]; // bypass '#' character [scanner scanHexInt:&rgbValue]; return [UIColor colorWithRed:((rgbValue & 0xFF0000) >> 16)

Alpha冲刺

不想你离开。 提交于 2020-02-12 04:24:56
第三天 日期:2018/6/18 1 今日完成任务情况以及遇到的问题。 妥志福、牛瑞鑫: 完成任务:数据库设计完成数据导入成功 遇到的问题: 无 王胜海、马中林: 完成任务: 对不同页面连接成功,能顺利进行转换 遇到的问题: 无 董润园、邓英蓉: 完成任务: 对页面首页进行不同主题的转换设计完善 遇到的问题: 无 2 明天任务安排 妥志福、牛瑞鑫:进一步修改数据库并对一些特殊数字进行特殊处理 王胜海、马中林:页面设计进一步完善 董润园、邓英蓉: 排查软件中存在的不足之处 3 成员贡献时间 成员 妥志福 牛瑞鑫 马中林 王胜海 董润园 邓英蓉 时间 3h 3h 3h 3h 3h 3h 4 燃尽图 来源: https://www.cnblogs.com/ruanjgc/p/9196646.html

三次指数平滑法(Matlab实现)

假如想象 提交于 2020-02-10 20:22:26
clc , clear % 根据问题更改 yt = [ 3.36 , 3.34 , 3.53 , 3.51 , 3.38 , 3.34 , 3.36 , 3.23 , 3.19 , 3.17 , 2.92 , 2.81 ] ; n = length ( yt ) ; sub = 0 ; for alpha = 0.1 : 0.1 : 0.3 sub = sub + 1 ; st1_0 = mean ( yt ( 1 : 3 ) ) ; st2_0 = st1_0 ; st3_0 = st1_0 ; st1 ( 1 ) = alpha * yt ( 1 ) + ( 1 - alpha ) * st1_0 ; st2 ( 1 ) = alpha * st1 ( 1 ) + ( 1 - alpha ) * st2_0 ; st3 ( 1 ) = alpha * st2 ( 1 ) + ( 1 - alpha ) * st3_0 ; for i = 2 : n st1 ( i ) = alpha * yt ( i ) + ( 1 - alpha ) * st1 ( i - 1 ) ; st2 ( i ) = alpha * st1 ( i ) + ( 1 - alpha ) * st2 ( i - 1 ) ; st3 ( i ) = alpha * st2 ( i ) + ( 1 -

图像混合

风流意气都作罢 提交于 2020-02-08 17:09:12
图像混合:+ #include <opencv2/opencv.hpp> #include <iostream> using namespace cv; using namespace std; int main(int argc, char** argv) { Mat src1, src2, dst; src1 = imread("E:/opencv/0/0.jpg"); src2 = imread("E:/opencv/0/2.jpg"); if (!src1.data) { printf("could not load image1...\n"); return -1; } if (!src2.data) { printf("could not load image2...\n"); return -1; } double alpha = 0.3; if (src1.rows == src2.rows && src1.cols == src2.cols && src1.type() == src2.type()) { addWeighted(src1, alpha, src2, (1.0 - alpha), 0.0, dst); imshow("onput image", dst); } else { printf("could not blend image ,the

How do you draw an icon inside a window in C++ WINAPI?

半世苍凉 提交于 2020-02-03 02:11:09
问题 what I'm trying to do is to create chess game in C++ through WINAPI, and since I haven't ever studied them at School I'm having some problems (online documentation is quite bad, I wasn't able to find any example of how to do this) with printing an .ico file with transparency inside my window. I aldready managed to do it with a bitmap image but my Photoshop doesn't let me save a .bmp file with alpha channels and I had to go for something supported by WINAPI and allowed transparency (therefore