Arrays 循环和输出
我正在尝试使用我的循环和输出语句,目前我有一笔分期偿还的贷款,如下所示:Arrays 循环和输出,arrays,loops,sas,do-loops,sas-studio,Arrays,Loops,Sas,Do Loops,Sas Studio,我正在尝试使用我的循环和输出语句,目前我有一笔分期偿还的贷款,如下所示: data have; input Payment2017 Payment2018 Payment2019 Payment2020; datalines; 100 10 10 10; run; 我试图创建一个成熟度和重新发行的概要文件,如下所示,我将在提交当前代码时解释其逻辑: data want; input; P2017 P2018 P2019 P2020 F1 F2 F3 MP2017 MP2018 MP2019
data have;
input Payment2017 Payment2018 Payment2019 Payment2020;
datalines;
100 10 10 10;
run;
我试图创建一个成熟度和重新发行的概要文件,如下所示,我将在提交当前代码时解释其逻辑:
data want;
input;
P2017 P2018 P2019 P2020 F1 F2 F3 MP2017 MP2018 MP2019 MP2020 NI2017 NI2018 NI2019 NI2020;
datalines;
100 10 10 10 0.1 0.1 0.1 100 10 10 10 0 0 0 0
100 10 10 10 0.1 0.1 0.1 0 10 1 1 0 10 0 0
100 10 10 10 0.1 0.1 0.1 0 0 11 1.1 0 0 11 0
100 10 10 10 0.1 0.1 0.1 0 0 0 12.1 0 0 0 12.1
;
run;
因此,逻辑是:
Payment2017=年初余额
Payment2018-2020=每个时期支付的金额
F1-F3是每个期间支付的贷款的分数
MP2017-MP2020是偿还的贷款金额-本质上是
mp(i) = p(i) *f(i)
NI2017-NI2020是新发行的金额,如果您假设每次我还清一部分贷款时,都会将其添加回贷款中。所以我现在使用的代码看起来像这样,但是我在输出和循环方面有一些问题
data want;
set have;
array MaturityProfile(4) MaturityProfile&StartDate-MaturityProfile&EndDate;
array NewIssuance(4) NewIssuance&StartDate - NewIssuance&EndDate;
array p(4) payment&StartDate-payment&EndDate;
array fraction(3); * track constant fraction determined at start of profile;
MaturityProfile(1) = P(1);
do i = 1 to 3;
fraction(i) = p(i+1) / p(1);
end;
iter=2;
do j = 1 to 2;
do i = iter to 4;
MaturityProfile(i) = P(j) * Fraction(i-j);
newissuance(i) = MaturityProfile(i);
end;
output;
iter=iter+1;
end;
output;
*MaturityProfile(4) = ( P(3) + MaturityProfile(2) ) * Fraction(1);
*output;
drop i;
drop j;
drop iter;
run;
我试图找到一种方法来计算前两行,保持它当前的输出方式,但第三行需要第二行(或newissuance2019)的列总和,然后将其乘以分数1
因此,基本上,输出看起来像我放在数据需要步骤中的表
蒂亚 我通过以下方法解决了这个问题:
data want;
set have;
array MaturityProfile(4) MaturityProfile&StartDate-MaturityProfile&EndDate;
array NewIssuance(4) NewIssuance&StartDate - NewIssuance&EndDate;
array p(4) payment&StartDate-payment&EndDate;
array fraction(3); * track constant fraction determined at start of profile;
array Total(4) Total1-Total4;
MaturityProfile(1) = P(1);
do i = 1 to 3;
fraction(i) = p(i+1) / p(1);
end;
iter=2;
do j = 1 to 2;
do i = iter to 4;
MaturityProfile(i) = P(j) * Fraction(i-j);
Total(i)=MaturityProfile(i) + P(i);
end;
output;
iter=iter+1;
end;
MaturityProfile(4) = Total(3) * Fraction(1);
output;
drop i;
drop j;
drop iter;
run;