"****" is not time-invariant for some unit(s).

[Elennahan]

when I tried to run the codes below

out.did <- tjbal(save ~ crank3+ density + gdp_per + ncincome + expendper + lendper + first + second + hospital + welfare,   
                 index = c("id","year"), Y.match.periods = "none", data = df,
                 demean = TRUE, bootstrap = TRUE, nboots = 200)

It returned the result as

"density" is not time-invariant for some unit(s).

Hope you can give some advice, thanks in advance

[xuyiqing]

Does the density variable time-varying or time invariant?

On Fri, Mar 29, 2019 at 3:31 AM Elennahan notifications@github.com wrote:

when I tried to run the codes below

out.did <- tjbal(save ~ crank3+ density + gdp_per + ncincome + expendper + lendper + first + second + hospital + welfare, index = c("id","year"), Y.match.periods = "none", data = df, demean = TRUE, bootstrap = TRUE, nboots = 200)

It returned the result as

"density" is not time-invariant for some unit(s).

Hope you can give some advice, thanks in advance

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-- Yiqing Xu

Assistant Professor Department of Political Science University of California, San Diego http://yiqingxu.org/

[zdlspace0528]

Dear Pro Xu, I try to run your example.But it gets error. library(panelView) library(gsynth) data(gsynth) panelView(turnout ~ policy_edr, data = turnout, index = c("abb","year"), by.timing = TRUE)

out <- tjbal(data = turnout, Y = "turnout", D = "policy_edr",
index = c("abb","year"), demean = TRUE, vce = "jackknife")

Balancing... Subgroup T0 = 14: bias.ratio = 0.5997; num.dims = 6 (mbal) Subgroup T0 = 19: bias.ratio = 0.4563; num.dims = 5 (mbal) Subgroup T0 = 22: bias.ratio = 0.2767; num.dims = 7 (mbal) Subgroup T0 = 23: bias.ratio = 0.3012; num.dims = 2 (mbal)

Jackknife...

Dropping units from Subgroup T0 = 14 Error in fun(A, k, nu, nv, opts, mattype = "matrix") : 'k' must satisfy 0 < k < min(nrow(A), ncol(A)). To calculate all singular values, try svd()

[xuyiqing]

Thank you, I'll look into it!

On Sun, Feb 21, 2021 at 10:22 PM zdlspace0528 notifications@github.com wrote:

Dear Pro Xu, I try to run your example.But it gets error. library(panelView) library(gsynth) data(gsynth) panelView(turnout ~ policy_edr, data = turnout, index = c("abb","year"), by.timing = TRUE)

out <- tjbal(data = turnout, Y = "turnout", D = "policy_edr", index = c("abb","year"), demean = TRUE, vce = "jackknife")

Balancing... Subgroup T0 = 14: bias.ratio = 0.5997; num.dims = 6 (mbal) Subgroup T0 = 19: bias.ratio = 0.4563; num.dims = 5 (mbal) Subgroup T0 = 22: bias.ratio = 0.2767; num.dims = 7 (mbal) Subgroup T0 = 23: bias.ratio = 0.3012; num.dims = 2 (mbal)

Jackknife...

Dropping units from Subgroup T0 = 14

Error in fun(A, k, nu, nv, opts, mattype = "matrix") : 'k' must satisfy 0 < k < min(nrow(A), ncol(A)). To calculate all singular values, try svd()

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/xuyiqing/tjbal/issues/4#issuecomment-783120023, or unsubscribe https://github.com/notifications/unsubscribe-auth/AB2PKGF7U4UN7AFHOYINWP3TAHZ2LANCNFSM4HCILWJA .

-- Yiqing Xu

Assistant Professor Department of Political Science University of California, San Diego http://yiqingxu.org/